DeepScan.Generic.Malware.SIMg.549D83C6_5ce83c3cf1 – Adaware

Dynamic Analysis

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:1480

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\Temporary Internet Files\Content.IE5\0H6B09UV\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\7A0C2.dmp (66689 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UVK189CN\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\CPIR0HE7\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\SNKKLV2Z\desktop.ini (67 bytes)

The process %original file name%.exe:1480 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\Temp\9f0f_appcompat.txt (6214 bytes)
%Documents and Settings%\%current user%\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\Reader9\yjzbyjaya.yar (44 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\yrrrzi.iirq.rzi (44 bytes)
%WinDir%\xwrm.exe (44 bytes)
%Documents and Settings%\%current user%\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\abriazzza.ribjaya.yar (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" = "8A E9 3E 53 DC 21 12 4C A6 F2 73 C5 AF A8 7D 41"

[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:1480 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
b50287512ad5e811d4087e00610c5470	c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\Reader9\yjzbyjaya.yar
b50287512ad5e811d4087e00610c5470	c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\abriazzza.ribjaya.yar
b50287512ad5e811d4087e00610c5470	c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\yrrrzi.iirq.rzi
b50287512ad5e811d4087e00610c5470	c:\WINDOWS\xwrm.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

Removals

Remove it with Ad-Aware

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

Manual removal*

Terminate malicious process(es) (How to End a Process With the Task Manager):
dwwin.exe:280
%original file name%.exe:1480
Delete the original DeepScan file.
Delete or disinfect the following files created/modified by the DeepScan:
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\0H6B09UV\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\7A0C2.dmp (66689 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\UVK189CN\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\CPIR0HE7\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\SNKKLV2Z\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Templates\excel.xls (666 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\9f0f_appcompat.txt (6214 bytes)
%Documents and Settings%\%current user%\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\Reader9\yjzbyjaya.yar (44 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\yrrrzi.iirq.rzi (44 bytes)
%WinDir%\xwrm.exe (44 bytes)
%Documents and Settings%\%current user%\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\abriazzza.ribjaya.yar (44 bytes)
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.

Static Analysis

VersionInfo

No information is available.

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
baiyyrjb	4096	4096	1536	0.538964	37879f72d72ec708a72ac5099c4cbd4e
ijirbayq	8192	32768	32256	4.50934	73d9b670a922a698be31e3f423c379b0
ajyyjary	40960	4096	512	0.468013	03990ce32513f25d3855296b7bc8aa4d
jqqaybza	45056	4096	2048	3.92473	6481060bb77e469e5fdb95d8e5c6ab31

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Map

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

Strings from Dumps

%original file name%.exe_1480:

\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

34_all_incr.msp

5ed9567-aa58-4c8e-a8ea-3cad7c47ab03

SFC.DLL

WinExec

abriazzza.rib

c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\abriazzza.ribjaya.yar

ReadMe.exe

c:\%original file name%.exe

96.exe

C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\yrrrzi.iirq.rzi

GetWindowsDirectoryA

FPTBAWDRF-INOCPANDANTIAMONN32SNOD3NPSSSMSSSCANZONEPROTMONIRWEBMIRCCKDOTROJSAFEJEDITRAYANDASPIDPLORNDLLTRENNSPLNSCHSYSTALERj

KERNEL32.dll

Summary

Dynamic Analysis

Removals

Static Analysis

Network Activity

Map

Strings from Dumps