DeepScan.Generic.Malware.SIMg.7A3E51BF_391d9cf6d4

by malwarelabrobot on May 30th, 2014 in Malware Descriptions.

Susp_Dropper (Kaspersky), DeepScan:Generic.Malware.SIM!g.7A3E51BF (B) (Emsisoft), DeepScan:Generic.Malware.SIM!g.7A3E51BF (AdAware), GenericEmailWorm.YR, GenericIRCBot.YR (Lavasoft MAS)
Behaviour: Worm, EmailWorm, IRCBot


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: 391d9cf6d491880042d1f0d6a328627b
SHA1: 98a1564be42dfeb9d7b1381d62191ccd7479e367
SHA256: 3e30e82c1fabae3200fef6a9129ef0f22e580b3e1ff8462741be1edc6d7805b8
SSDeep: 384:8/B EOoRAJzNZGwWBlv lRtei3i8vloo7JsEVNebQTecE/4HjEUNI2KAK4Nhdk:eZRAJBZG3B VlfJs200TnHwYh2
Size: 44032 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: no data
Analyzed on: WindowsXP SP3 32-bit


Summary:

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

Payload

Behaviour Description
EmailWorm Worm can send e-mails.
IRCBot A bot can communicate with command and control servers via IRC channel.


Process activity

The DeepScan creates the following process(es):

dwwin.exe:280
%original file name%.exe:1692

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

File activity

The process dwwin.exe:280 makes changes in the file system.
The DeepScan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\E7C02.dmp (66689 bytes)

The process %original file name%.exe:1692 makes changes in the file system.
The DeepScan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Templates\excel.xls (666 bytes)
%Documents and Settings%\%current user%\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\azzzariby.qabyara.bri (44 bytes)
%Documents and Settings%\%current user%\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\Reader9\yjayayara.bri (44 bytes)
%WinDir%\xwrm.exe (44 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\6f3e_appcompat.txt (6214 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\jaziia.iyqr.rai (44 bytes)

Registry activity

The process dwwin.exe:280 makes changes in the system registry.
The DeepScan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "76 DF 69 97 90 B8 9C 86 78 E3 09 64 B3 8A 0B 5C"

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

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

[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\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"

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

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

[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\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

[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\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"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 16 00 00 00 01 00 00 00 00 00 00 00"

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

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

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

Proxy settings are disabled:

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

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

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

The process %original file name%.exe:1692 makes changes in the system registry.
The DeepScan creates and/or sets the following values in system registry:
To automatically run itself each time Windows is booted, the DeepScan adds the following link to its file to the system registry autorun key:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"x32x" = "%WinDir%\xwrm.exe"

The DeepScan deletes the following registry key(s):

[HKLM\SOFTWARE\Microsoft\PCHealth\ErrorReporting\DW]

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

[HKLM\SOFTWARE\Microsoft\PCHealth\ErrorReporting\DW]
"DWFileTreeRoot"

Dropped PE files

MD5 File path
40af06820240539365149aeb6ad67f42 c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\Reader9\yjayayara.bri
40af06820240539365149aeb6ad67f42 c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\azzzariby.qabyara.bri
40af06820240539365149aeb6ad67f42 c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\jaziia.iyqr.rai
40af06820240539365149aeb6ad67f42 c:\WINDOWS\xwrm.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

VersionInfo

No information is available.

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Section MD5
ayziyaiy 4096 4096 1536 0.543874 1e99221bf07278a438fc9d175e23ab19
jajybjab 8192 32768 32256 4.57456 bc71543f3c1dff451af6f14d67c93874
iqrbzijq 40960 4096 512 0.468013 03990ce32513f25d3855296b7bc8aa4d
qrrzziib 45056 4096 2048 3.92473 6481060bb77e469e5fdb95d8e5c6ab31

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

URLs

No activity has been detected.

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Web Traffic was not found.

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

%original file name%.exe_1692:

\xwrm.exe
%WinDir%\xwrm.exe
Software\Microsoft\Windows\CurrentVersion\Run
USER %s 8 * :%s
NICK %s
PONG %s
JOIN #england
PRIVMSG #england :.-:[X-Worm]:-.
irc.undernet.org
MAIL FROM:<%s>
RCPT TO:<%s>
--%s--
From:<%s>
To: %s
Subject:%s
boundary="%s"
X-Mailer: Microsoft Outlook Express 6.00.2800.1106
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106
charset="windows-1255"
name= "%s%s"
Content-Disposition: attachment; filename="%s%s"
Support
No.reply
8.txtt:
8.htmt2
8.rtft*
8.doct"
8.bdxt
8.phpt
8.jspt
8.cgit
smtp
ws2_32.dll
ADVAPI32.DLL
RegOpenKeyExA
RegCloseKey
User32.dll
excel.xls
ia Player.lnk
Commander.lnk
8.exe
8.scrtt
8.avitJ
8.doctB
8.mp3t:
8.mpgt2
8.xlst*
8.jpgt"
8.zipt
8.isot
8.pdft
8.pptt
8.rart
c:\Documents and Settings\"%CurrentUserName%"\Templates\excel.xls
indows Media Player.lnk
or Repair Total Commander.lnk
3C2Ah3vIAY[1].png
5ed9567-aa58-4c8e-a8ea-3cad7c47ab03
SFC.DLL
WinExec
azzzariby.qab
c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\azzzariby.qabyara.bri
ReadMe.exe
c:\%original file name%.exe
EHi0r.exe
C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\jaziia.iyqr.rai
GetWindowsDirectoryA
FPTBAWDRF-INOCPANDANTIAMONN32SNOD3NPSSSMSSSCANZONEPROTMONIRWEBMIRCCKDOTROJSAFEJEDITRAYANDASPIDPLORNDLLTRENNSPLNSCHSYSTALERj
KERNEL32.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):

    dwwin.exe:280
    %original file name%.exe:1692

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

    %Documents and Settings%\%current user%\Local Settings\Temp\E7C02.dmp (66689 bytes)
    %Documents and Settings%\%current user%\Templates\excel.xls (666 bytes)
    %Documents and Settings%\%current user%\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\azzzariby.qabyara.bri (44 bytes)
    %Documents and Settings%\%current user%\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\Reader9\yjayayara.bri (44 bytes)
    %WinDir%\xwrm.exe (44 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\6f3e_appcompat.txt (6214 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\jaziia.iyqr.rai (44 bytes)

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

    [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
    "x32x" = "%WinDir%\xwrm.exe"

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

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