Trojan.GenericKD.1371384_5892fed98a

by malwarelabrobot on July 9th, 2014 in Malware Descriptions.

Trojan.Win32.Agent.ibbb (Kaspersky), Trojan.GenericKD.1371384 (B) (Emsisoft), Trojan.GenericKD.1371384 (AdAware), GenericInjector.YR (Lavasoft MAS)
Behaviour: Trojan


The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.

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Summary
Dynamic Analysis
Static Analysis
Network Activity
Map
Strings from Dumps
Removals

MD5: 5892fed98a0283b7f9a99b428a765875
SHA1: b7f47c0047f245d372b4744177254234f01adcd0
SHA256: 8fe615d515cf116b22ac840ec95b198b59f979a1ec1802e966f9b90ded792ab2
SSDeep: 768:yFb9rb3MWE83xo7tdgI2MyzNtRQtONlIwoHNV2XBFV72B4lA7TJ5ZeeN216G:4dm83xo7tdgI2MyzNtRQtONlIwoHNV2R
Size: 26272 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2004-10-14 08:53:14
Analyzed on: WindowsXP SP3 32-bit


Summary:

Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

budha.exe:596
kilf.exe:1748
%original file name%.exe:1272
imapcy.exe:1668
mscorsvw.exe:172

The Trojan injects its code into the following process(es):
No processes have been created.

Mutexes

The following mutexes were created/opened:
No objects were found.

File activity

The process budha.exe:596 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Application Data\Microsoft\CryptnetUrlCache\MetaData\2BF68F4714092295550497DD56F57004 (408 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\TarB7.tmp (2712 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\8J2SIGQ3\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\RXRLBLM5\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\3FC5CUEG\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\E2OSCB5T\img_05[1].exe (1720 bytes)
%Documents and Settings%\%current user%\Cookies\index.dat (400 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\CabB6.tmp (54 bytes)
%Documents and Settings%\%current user%\Application Data\Microsoft\CryptnetUrlCache\Content\2BF68F4714092295550497DD56F57004 (18 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\E2OSCB5T\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@getappsforpc[1].txt (171 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\CabB4.tmp (54 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\TarB5.tmp (2712 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\kilf.exe (1720 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\TarB7.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\CabB4.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\CabB6.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\TarB5.tmp (0 bytes)

The process kilf.exe:1748 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\BCVC86F.bat (171 bytes)
%Documents and Settings%\%current user%\Application Data\Ymivko\imapcy.exe (2760 bytes)

The process %original file name%.exe:1272 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\budha.exe (26 bytes)

The process imapcy.exe:1668 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\NTUSER.DAT.LOG (6096 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT (5668 bytes)

Registry activity

The process budha.exe:596 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Documents" = "%Documents and Settings%\All Users\Documents"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Personal" = "%Documents and Settings%\%current user%\My Documents"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Desktop" = "%Documents and Settings%\All Users\Desktop"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

"Desktop" = "%Documents and Settings%\%current user%\Desktop"

[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp]
"kilf.exe" = "kilf"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 13 00 00 00 01 00 00 00 00 00 00 00"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "74 BD 05 0A 79 17 69 3D D7 9A D3 16 B7 E8 50 27"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"MigrateProxy" = "1"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

The Trojan modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "1"

The Trojan modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:

"ProxyBypass" = "1"

Proxy settings are disabled:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

The Trojan modifies IE settings for security zones to map all urls to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName" = "1"

The Trojan deletes the following value(s) in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"

The process kilf.exe:1748 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "AB 39 B8 76 48 F2 D4 EC 84 DA 9A 73 FB 40 DA FA"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
"Local AppData" = "%Documents and Settings%\%current user%\Local Settings\Application Data"

The process %original file name%.exe:1272 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "24 64 64 A8 E9 AA 3C 63 E5 53 99 42 E3 35 7F BE"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Documents" = "%Documents and Settings%\All Users\Documents"

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp]
"budha.exe" = "budha"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Desktop" = "%Documents and Settings%\%current user%\Desktop"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common Desktop" = "%Documents and Settings%\All Users\Desktop"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Personal" = "%Documents and Settings%\%current user%\My Documents"

The Trojan modifies IE settings for security zones to map all urls to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName" = "1"

The Trojan modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

"UNCAsIntranet" = "1"

The Trojan modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:

"ProxyBypass" = "1"

The process imapcy.exe:1668 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "6C 15 F2 58 2E C8 D4 23 E7 43 BC 32 6E 17 82 E4"

[HKCU\Software\Microsoft\Xytoezapemu]
"e526a4e" = "10 B6 43 78 52 BB 4D 0C 6D 83 FC 4D 84 F6 FF 15"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
"Local AppData" = "%Documents and Settings%\%current user%\Local Settings\Application Data"

The process mscorsvw.exe:172 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\.NETFramework\v2.0.50727\NGenService\State]
"AccumulatedWaitIdleTime" = "1260000"

Dropped PE files

MD5 File path
0147d58670e22d3b0463597ea99360a6 c:\Documents and Settings\"%CurrentUserName%"\Application Data\Ymivko\imapcy.exe
1d179412925ed071ad22a8db947297f8 c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\budha.exe
0a9f857c21c8a574702104c6d452a956 c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temporary Internet Files\Content.IE5\E2OSCB5T\img_05[1].exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

The Trojan installs the following user-mode hooks in WININET.dll:

HttpSendRequestExA
HttpSendRequestW
InternetReadFileExA
InternetWriteFile
InternetWriteFileExA
InternetQueryDataAvailable
HttpQueryInfoW
HttpSendRequestExW
InternetReadFile
HttpQueryInfoA
HttpSendRequestA
InternetCloseHandle

The Trojan installs the following user-mode hooks in CRYPT32.dll:

PFXImportCertStore

The Trojan installs the following user-mode hooks in USER32.dll:

GetClipboardData
TranslateMessage

The Trojan installs the following user-mode hooks in Secur32.dll:

DecryptMessage
SealMessage
DeleteSecurityContext

The Trojan installs the following user-mode hooks in WS2_32.dll:

WSAGetOverlappedResult
WSASend
recv
gethostbyname
WSARecv
send
closesocket
freeaddrinfo
getaddrinfo
GetAddrInfoW

The Trojan installs the following user-mode hooks in ntdll.dll:

LdrLoadDll
NtCreateThread

Propagation

VersionInfo

No information is available.

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Section MD5
.code 4096 116 512 1.18637 d2f98aee00bac87dc5de3fdde7f4c6e8
.text 8192 3566 3584 4.73408 2bda0c17e458ed09f64f87e6f0c0caef
.data 12288 4262 4608 2.87695 5777c0b2787736df21f100adfcf6b70a
.idata 20480 1430 1536 2.90403 a2d9a61e82589d798094f20bf7b1b96c
.rsrc 24576 14350 14848 4.20379 22d33b6d3a031949354bb9728302445e

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Total found: 14
29ac9e619bff2bacc14870cc2fd336c4
1ef6fb54bcae600ceafd08b5084a760f
92d44e74a8cd751239de335b46c3026c
c658f55037b7ac9353405f21b12c8a5e
c8c83b662ad3c7c1c4aafdf1b8eb9b35
f44c85a05d0352881ac4167d7631e010
e59798fa7c735cfe6fd0ebfb3be3bb50
0a5b1d3ba29ac913c6ca7b86703d4ae8
801c628196f596118d705a89070b8eed
07b6c3ff428196be3f8253432aa86490
26fea39701ab2b0ad53b45426e3f02dd
e3ca580148bf303f9d5d0d26f69a13c4
5340421e87aa56f5a9753ab55a28e5bd
202853a46e9449aba9614a11b017d71c

URLs

URL IP
hxxp://a26.d.akamai.net/msdownload/update/v3/static/trustedr/en/authrootseq.txt
hxxp://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootseq.txt 72.247.8.48
bwcaffebar.com 103.6.196.152
activateyourcareerlife.com 103.6.196.152
getappsforpc.com 184.154.15.188


IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Web Traffic was not found.

The Trojan connects to the servers at the folowing location(s):

Strings from Dumps were not found.


Remove it with Ad-Aware

  1. Click (here) to download and install Ad-Aware Free Antivirus.
  2. Update the definition files.
  3. Run a full scan of your computer.


Manual removal*

  1. Scan a system with an anti-rootkit tool.
  2. Terminate malicious process(es) (How to End a Process With the Task Manager):

    budha.exe:596
    kilf.exe:1748
    %original file name%.exe:1272
    imapcy.exe:1668
    mscorsvw.exe:172

  3. Delete the original Trojan file.
  4. Delete or disinfect the following files created/modified by the Trojan:

    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Application Data\Microsoft\CryptnetUrlCache\MetaData\2BF68F4714092295550497DD56F57004 (408 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\TarB7.tmp (2712 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\8J2SIGQ3\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\RXRLBLM5\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\3FC5CUEG\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\E2OSCB5T\img_05[1].exe (1720 bytes)
    %Documents and Settings%\%current user%\Cookies\index.dat (400 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\CabB6.tmp (54 bytes)
    %Documents and Settings%\%current user%\Application Data\Microsoft\CryptnetUrlCache\Content\2BF68F4714092295550497DD56F57004 (18 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\E2OSCB5T\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Cookies\Current_User@getappsforpc[1].txt (171 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\CabB4.tmp (54 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\TarB5.tmp (2712 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\kilf.exe (1720 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\BCVC86F.bat (171 bytes)
    %Documents and Settings%\%current user%\Application Data\Ymivko\imapcy.exe (2760 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\budha.exe (26 bytes)
    %Documents and Settings%\%current user%\NTUSER.DAT.LOG (6096 bytes)

  5. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
  6. Reboot the computer.

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.