Worm.Win32.Rebhip_9622c62102

by malwarelabrobot on July 7th, 2014 in Malware Descriptions.

HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.GenericKD.1735165 (B) (Emsisoft), Trojan.GenericKD.1735165 (AdAware), Trojan.Win32.IEDummy.FD, WormRebhip.YR, GenericAutorunWorm.YR, GenericInjector.YR (Lavasoft MAS)
Behaviour: Trojan, Worm, WormAutorun


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

Requires JavaScript enabled!

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

MD5: 9622c62102f7f5e1e56898e1c4e196ee
SHA1: aca41850619ac67245ecff35da30e319ecb21f31
SHA256: 17f80e9337966c7eeffa503420b7332280ecdc8a14a967e7590ae3b56c155e00
SSDeep: 24576:nkmThx9yVyPF1Jvt3Wg3LrrQ0JX7L4QdV7aren2q0Z a1VzyoTT8mRG51kPS8V:vFx0kd1JF3WaLw0RIIO80Aav9ZR0K6u
Size: 1716984 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6, MicrosoftVisualBasicv50v60
Company: no certificate found
Created at: 2008-06-12 11:51:05
Analyzed on: WindowsXP SP3 32-bit


Summary:

Worm. A program that is primarily replicating on networks or removable drives.

Payload

Behaviour Description
WormAutorun A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Worm's file once a user opens a drive's folder in Windows Explorer.


Process activity

The Worm creates the following process(es):

%original file name%.exe:1352
%original file name%.exe:1196

The Worm injects its code into the following process(es):

iexplore.exe:500

Mutexes

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

File activity

The process %original file name%.exe:1352 makes changes in the file system.
The Worm creates and/or writes to the following file(s):

%System%\Fonts\ctfmon.exe (11518 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\XX--XX--XX.txt (235 bytes)

Registry activity

The process %original file name%.exe:1352 makes changes in the system registry.
The Worm creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "69 DC B5 F1 8F F4 87 23 CF 46 86 89 3D 8F E3 F3"

[HKLM\SOFTWARE\Microsoft\Active Setup\Installed Components\{64645VEO-W5UN-4N2U-QACC-F2PFAF15EWL4}]
"StubPath" = "%System%\Fonts\ctfmon.exe Restart"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run]
"ctfmon" = "%System%\Fonts\ctfmon.exe"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run]
"ctfmon" = "%System%\Fonts\ctfmon.exe"

To automatically run itself each time Windows is booted, the Worm adds the following link to its file to the system registry autorun key:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"HKCU" = "%System%\Fonts\ctfmon.exe"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"HKLM" = "%System%\Fonts\ctfmon.exe"

The process %original file name%.exe:1196 makes changes in the system registry.
The Worm creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "2A 9D 19 24 49 A4 D1 55 EF 6D EF 9C E5 6F 75 E8"

[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\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"
"My Pictures" = "%Documents and Settings%\%current user%\My Documents\My Pictures"

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

[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"

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

[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"
"Personal" = "%Documents and Settings%\%current user%\My Documents"

Dropped PE files

There are no dropped PE files.

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Worm's file once a user opens a drive's folder in Windows Explorer.

VersionInfo

No information is available.

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Section MD5
4096 417792 217600 5.54455 57b8f0834fbb2f45bf37e4ae38ae5d3c
421888 61440 15360 5.52815 c806edb0e9df2c136e206687e14adf3a
483328 94208 3584 5.14982 9512cbe4d0ad688ab9aa79384b5164e6
577536 303104 1024 4.01 032f7e88a8f758c9706016853902783f
.rsrc 880640 303104 299520 4.85621 43ead1f0146039289e896821f4405299
1183744 3543040 0 0 d41d8cd98f00b204e9800998ecf8427e
.data 4726784 716800 716800 5.53626 a957086c015c27bf768ce832fd8f1d5f

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Total found: 5
ce61188fbe8c55157a0cd7325f2aeb91
8062b258bb0bc7aa73cc53a0847c10cc
2b2d0e6938bf4d333251ea4eb699d988
8f7471bb3352ebfff8dbd1410ca63ad4
a7e92635f90e5c72e402f36f7cd09058

URLs

No activity has been detected.

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Web Traffic was not found.

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

iexplore.exe_500:

%?9-*09,*19}*09
.text
`.data
.rsrc
msvcrt.dll
KERNEL32.dll
NTDLL.DLL
USER32.dll
SHLWAPI.dll
SHDOCVW.dll
Software\Microsoft\Windows\CurrentVersion\Explorer\BrowseNewProcess
IE-X-X
rsabase.dll
System\CurrentControlSet\Control\Windows
dw15 -x -s %u
watson.microsoft.com
IEWatsonURL
%s -h %u
iedw.exe
Iexplore.XPExceptionFilter
jscript.DLL
mshtml.dll
mlang.dll
urlmon.dll
wininet.dll
shdocvw.DLL
browseui.DLL
comctl32.DLL
IEXPLORE.EXE
iexplore.pdb
ADVAPI32.dll
MsgWaitForMultipleObjects
IExplorer.EXE
IIIIIB(II<.Fg
7?_____ZZSSH%
)z.UUUUUUUU
,....Qym
````2```
{.QLQIIIKGKGKGKGKGKG
;33;33;0
8888880
8887080
browseui.dll
shdocvw.dll
6.00.2900.5512 (xpsp.080413-2105)
Windows
Operating System
6.00.2900.5512

iexplore.exe_500_rwx_00150000_00001000:

KERNEL32.DLL

iexplore.exe_500_rwx_00290000_00001000:

KERNEL32.DLL

iexplore.exe_500_rwx_002D0000_00001000:

KERNEL32.DLL

iexplore.exe_500_rwx_00310000_00001000:

KERNEL32.DLL

iexplore.exe_500_rwx_00350000_00001000:

KERNEL32.DLL

iexplore.exe_500_rwx_00390000_00001000:

KERNEL32.DLL

iexplore.exe_500_rwx_00C40000_00001000:

advapi32.dll

iexplore.exe_500_rwx_00D70000_00001000:

RegOpenKeyA

iexplore.exe_500_rwx_00D80000_00001000:

advapi32.dll

iexplore.exe_500_rwx_00DB0000_00001000:

AVICAP32.DLL

iexplore.exe_500_rwx_00EF0000_00001000:

AVICAP32.DLL

iexplore.exe_500_rwx_00F20000_00001000:

gdi32.dll

iexplore.exe_500_rwx_00F60000_00001000:

gdi32.dll

iexplore.exe_500_rwx_00F90000_00001000:

gdiplus.dll

iexplore.exe_500_rwx_00FD0000_00001000:

gdiplus.dll

iexplore.exe_500_rwx_01010000_00001000:

mpr.dll

iexplore.exe_500_rwx_01060000_00001000:

mpr.dll

iexplore.exe_500_rwx_01090000_00001000:

msacm32.dll

iexplore.exe_500_rwx_014E0000_00001000:

msacm32.dll

iexplore.exe_500_rwx_01510000_00001000:

ntdll.dll

iexplore.exe_500_rwx_01650000_00001000:

ntdll.dll

iexplore.exe_500_rwx_01680000_00001000:

ole32.dll

iexplore.exe_500_rwx_017C0000_00001000:

ole32.dll

iexplore.exe_500_rwx_017F0000_00001000:

oleaut32.dll

iexplore.exe_500_rwx_01830000_00001000:

oleaut32.dll

iexplore.exe_500_rwx_01970000_00001000:

powrprof.dll

iexplore.exe_500_rwx_01AB0000_00001000:

powrprof.dll

iexplore.exe_500_rwx_01AE0000_00001000:

shell32.dll

iexplore.exe_500_rwx_01C20000_00001000:

shell32.dll

iexplore.exe_500_rwx_01C50000_00001000:

user32.dll

iexplore.exe_500_rwx_01D90000_00001000:

user32.dll

iexplore.exe_500_rwx_01DC0000_00001000:

wininet.dll

iexplore.exe_500_rwx_01EF0000_00001000:

FtpOpenFileA

iexplore.exe_500_rwx_01F00000_00001000:

wininet.dll

iexplore.exe_500_rwx_01F30000_00001000:

winmm.dll

iexplore.exe_500_rwx_02070000_00001000:

winmm.dll

iexplore.exe_500_rwx_020A0000_00001000:

wsock32.dll

iexplore.exe_500_rwx_021E0000_00001000:

wsock32.dll

iexplore.exe_500_rwx_24010000_00062000:

`.rsrc
/w)f%u/
kernel32.dll
Portions Copyright (c) 1999,2003 Avenger by NhT
SHFileOperationA
shell32.dll
URLDownloadToFileA
urlmon.dll
ShellExecuteA
SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders
GetWindowsDirectoryA
SOFTWARE\Microsoft\Windows\CurrentVersion
http\shell\open\command
\Internet Explorer\iexplore.exe
####@####
$*@@@*$@@@$ *@@* $@@($*)@-$*@@$-*@@$*-@@(*$)@-*$@@*-$@@*$-@@-* $@-$ *@* $-@$ *-@$ -*@*- $@($ *)(* $)
Portugal
Turkey
Windows 3.1
Windows 95 (Release 2)
Windows 95
Windows 98 SE
Windows 98
Windows ME
Windows 7
Windows Vista
%s %s
Windows XP Professional x64
Windows XP Home
Windows XP Professional
Windows 2000 Professional
Windows NT %d.%d
Windows 2008
%s %s Server
Windows 2003 Server Datacenter
Windows 2003 Server Enterprise
Windows 2003 Server Web Edition
Windows 2003 Server
Windows Home Server
Windows 2003 Server (Release 2)
Windows 2000 Server Datacenter
Windows 2000 Server Enterprise
Windows 2000 Server Web Edition
Windows 2000 Server
Windows NT 4.0 Server Datacenter
Windows NT 4.0 Server Enterprise
Windows NT 4.0 Server Web Edition
Windows NT 4.0 Server
Unknown Platform ID (%d)
%d.%d
%s (Build: %d
- Service Pack: %s
KERNEL32.DLL
teste.vbs
teste.txt
Set objSecurityCenter = GetObject("winmgmts:\\.\root\SecurityCenter")
Set colFirewall = objSecurityCenter.ExecQuery("Select * From FirewallProduct",,48)
Set colAntiVirus = objSecurityCenter.ExecQuery("Select * From AntiVirusProduct",,48)
Set objFileSystem = CreateObject("Scripting.fileSystemObject")
Set objFile = objFileSystem.CreateTextFile("
Info = Info & "F" & CountFw & ") " & objFirewall.displayName & " v" & objFirewall.versionNumber & Enter
Info = Info & "A" & CountAV & ") " & objAntiVirus.displayName & " v" & objAntiVirus.versionNumber & Enter
objFile.WriteLine(Info)
objFile.Close
cscript.exe
AVICAP32.dll
tFtpAccess
BuildImportTable: can't load library:
BuildImportTable: ReallocMemory failed
BuildImportTable: GetProcAddress failed
BTMemoryLoadLibary: BuildImportTable failed
BTMemoryGetProcAddress: no export table found
BTMemoryGetProcAddress: DLL doesn't export anything
BTMemoryGetProcAddress: exported symbol not found
SetupApi.dll
SetupDiOpenClassRegKey
SetupDiOpenClassRegKeyExA
SetupDiOpenClassRegKeyExW
SetupDiCreateDeviceInterfaceRegKeyA
SetupDiCreateDeviceInterfaceRegKeyW
SetupDiOpenDeviceInterfaceRegKey
SetupDiDeleteDeviceInterfaceRegKey
SetupDiCreateDevRegKeyA
SetupDiCreateDevRegKeyW
SetupDiOpenDevRegKey
SetupDiDeleteDevRegKey
CM_DEVCAP_LOCKSUPPORTED
CM_DEVCAP_EJECTSUPPORTED
PDCAP_D0_SUPPORTED
PDCAP_D1_SUPPORTED
PDCAP_D2_SUPPORTED
PDCAP_D3_SUPPORTED
PDCAP_WAKE_FROM_D0_SUPPORTED
PDCAP_WAKE_FROM_D1_SUPPORTED
PDCAP_WAKE_FROM_D2_SUPPORTED
PDCAP_WAKE_FROM_D3_SUPPORTED
PDCAP_WARM_EJECT_SUPPORTED
HKEY_CLASSES_ROOT
HKEY_CURRENT_CONFIG
HKEY_CURRENT_USER
HKEY_LOCAL_MACHINE
HKEY_USERS
127.0.0.1
iphlpapi.dll
AllocateAndGetTcpExTableFromStack
AllocateAndGetUdpExTableFromStack
SetTcpEntry
GetExtendedTcpTable
GetExtendedUdpTable
Mozilla3_5Password
GetChromePass
StartHttpProxy
1.2.3
XxX.xXx
UuU.uUu
keyboardkey
webcaminactive
webcamgetbuffer
webcam
enviarexecnormal
enviarexechidden
openweb
downexec
sendftp
keylogger
keyloggergetlog
keyloggereraselog
keyloggerativar
keyloggerdesativar
renamekey
windowsfechar
windowsmax
windowsmin
windowsmostrar
windowsocultar
windowsmintodas
windowscaption
listarportas
listarportasdns
finalizarprocessoportas
webcamsettings
chatmsg
SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\
PSAPI.dll
\config\SteamAppData.vdf
AutoLoginUser
/ClientRegistry.Blob
\ClientRegistry.blob
\steam.dll
%SYS%
ÞSKTOP%
FirstExecution
chatmsg|
Software\Microsoft\Windows\CurrentVersion\Run
Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run
listarjanelas|windowsfechar|
listarjanelas|windowsmax|
listarjanelas|windowsmin|
listarjanelas|windowsmostrar|
listarjanelas|windowsocultar|
listarjanelas|windowsmintodas|
listarjanelas|windowscaption|
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall
listarportas|listadeportaspronta|
listarportas|finalizarconexao|
listarportas|finalizarprocessoportas|Y|
listarportas|finalizarprocessoportas|N|
registro|renamekey|
keylogger|keylogger|keyloggerativar|
keylogger|keylogger|keyloggerdesativar|
keylogger|keyloggergetlog|
keylogger|keylogger|keyloggervazio|
keyloggersearch
keyloggersearchok|
webcam|webcaminactive|
webcam|webcamactive|
getpassword
_x_X_PASSWORDLIST_X_x_
NOIP.abc
MSN.abc
FIREFOX.abc
IELOGIN.abc
IEPASS.abc
IEAUTO.abc
IEWEB.abc
SOFTWARE\Mozilla\Mozilla Firefox
getfirefox
getielogin
getiepass
getieweb
getchrome
getpassword|getpasswordlist|
getpassword|getpassworderror|
updateservidorweb
##@@## ##@@## ##@@##
Windows\CurrentVersion\Uninstall\eDonkey2000
UNWISE.EXE
ntdll.dll
icon=shell32.dll,4
shellexecute=
autorun.inf
XX--XX--XX.txt
logs.dat
SQLite3.dll
$1.2.3
deflate 1.2.3 Copyright 1995-2005 Jean-loup Gailly
inflate 1.2.3 Copyright 1995-2005 Mark Adler
KWindows
UnitExecutarComandos
uftp
UrlMon
.UnitBytesSize
UnitListarPortasAtivas
UnitWebcam
UnitKeylogger
WinExec
SetNamedPipeHandleState
GetProcessHeap
CreatePipe
RegOpenKeyExA
RegOpenKeyA
RegEnumKeyExA
RegDeleteKeyA
RegCreateKeyA
RegCloseKey
GdiplusShutdown
keybd_event
MapVirtualKeyA
GetKeyboardState
GetKeyboardLayoutNameA
GetKeyState
GetAsyncKeyState
ExitWindowsEx
EnumWindows
FtpGetFileSize
FtpSetCurrentDirectoryA
FtpOpenFileA
%( % & % % % ]
.idata
.reloc
P.rsrc
advapi32.dll
AVICAP32.DLL
gdi32.dll
gdiplus.dll
mpr.dll
msacm32.dll
ole32.dll
oleaut32.dll
powrprof.dll
user32.dll
wininet.dll
winmm.dll
wsock32.dll


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. Terminate malicious process(es) (How to End a Process With the Task Manager):

    %original file name%.exe:1352
    %original file name%.exe:1196

  2. Delete the original Worm file.
  3. Delete or disinfect the following files created/modified by the Worm:

    %System%\Fonts\ctfmon.exe (11518 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\XX--XX--XX.txt (235 bytes)

  4. Delete the following value(s) in the autorun key (How to Work with System Registry):

    [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
    "HKCU" = "%System%\Fonts\ctfmon.exe"

    [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
    "HKLM" = "%System%\Fonts\ctfmon.exe"

  5. Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.
  6. Reboot the computer.

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