ThreatExpert Report: Trojan.Win32.Buzus.anmr, W32.Ackantta.B@mm, W32/Waledac, Mal/CryptBox-A..

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Submission Summary:

Submission details:

Submission received: 1 March 2009, 11:08:57
Processing time: 8 min 41 sec
Submitted sample:

File MD5: 0xE0955B0D71E311AA3D8DF076891114F1
File SHA-1: 0x2C3DAF353185BD2F9CF35D5693B6E09F22646011
Filesize: 218,624 bytes
Alias:

W32.Ackantta.B@mm [Symantec]
Trojan.Win32.Buzus.anmr [Kaspersky Lab]
W32/Waledac [McAfee]
Mal/CryptBox-A [Sophos]
VirTool:Win32/CeeInject.gen!J [Microsoft]
Trojan.Win32.Buzus [Ikarus]

Summary of the findings:

What's been found	Severity Level
Capability to block access to several security-related Web sites by modifying the hosts file.
Capability to send out email message(s) with the built-in SMTP client engine.
Threat characteristics of Vundo (aka VirtuMonde/VirtuMundo), a trojan horse that cause popups and advertises rogue antispyware programs. Vundo can be installed by visiting a Web site link contained in a spammed email. It is known to create a DLL file in the Windows system32 directory and inject it into system processes winlogon.exe and explorer.exe.
Communication with a remote SMTP server and sending out email.
Mass-mailer that sends out email to the email addresses harvested from the local computer.
Downloads/requests other files from Internet.
Creates a startup registry entry.
Registers a Winlogon notification package so that the installed module is loaded into the address space of winlogon.exe.
Registers a 32-bit in-process server DLL.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

Attention! Characteristics of the following security risk was identified in the system:

Security Risk	Description
Trojan.Virtumonde	Virtumonde modifies the Windows Internet connection mechanism and display various pop-up advertisements.

Attention! The following threat categories were identified:

Threat Category	Description
	A malicious trojan horse or bot that may represent security risk for the compromised system and/or its network environment
	A network-aware worm that attempts to replicate across the existing network(s)

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%Temp%\ddcCSIcc.bat	79 bytes	MD5: 0x99062960CD781999754BB5BD6072BB9F SHA-1: 0x7225D3E9C10BA309F0CB86FD90907BDA7D7CBB97	(not available)
2	%System%\hgGyxVLe.dll	37,888 bytes	MD5: 0xE4347CAFDE4FC9297D0191E67815DBEA SHA-1: 0x913B9CDF0846C70DBE773275C361A99A25413737	W32.Ackantta.B@mm [Symantec] Vundo.gen.w [McAfee] Trojan.Win32.Vundo [Ikarus]
3	%System%\javawt.exe [file and pathname of the sample #1]	218,624 bytes	MD5: 0xE0955B0D71E311AA3D8DF076891114F1 SHA-1: 0x2C3DAF353185BD2F9CF35D5693B6E09F22646011	W32.Ackantta.B@mm [Symantec] Trojan.Win32.Buzus.anmr [Kaspersky Lab] W32/Waledac [McAfee] Mal/CryptBox-A [Sophos] VirTool:Win32/CeeInject.gen!J [Microsoft] Trojan.Win32.Buzus [Ikarus]

Notes:

%Temp% is a variable that refers to the temporary folder in the short path form. By default, this is C:\Documents and Settings\[UserName]\Local Settings\Temp\ (Windows NT/2000/XP).
%System% is a variable that refers to the System folder. By default, this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).

Memory Modifications

There were new processes created in the system:

Process Name	Process Filename	Main Module Size
[filename of the sample #1]	[file and pathname of the sample #1]	229,376 bytes
javawt.exe	%System%\javawt.exe	229,376 bytes
javme.exe	%System%\javme.exe	73,728 bytes

The following module was loaded into the address space of other process(es):

Module Name	Module Filename	Address Space Details
hgGyxVLe.dll	%System%\hgGyxVLe.dll	Process name: explorer.exe Process filename: %Windir%\explorer.exe Address space: 0x1A00000 - 0x1A15000

Notes:

%Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.

Registry Modifications

The following Registry Keys were created:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{6D794CB4-C7CD-4c6f-BFDC-9B77AFBDC02C}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{6D794CB4-C7CD-4c6f-BFDC-9B77AFBDC02C}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Control Panel\Settings
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\CabinetFileStateB2
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\hgGyxVLe
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\00cd0861
HKEY_CURRENT_USER\Software\Microsoft\cs41275

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{6D794CB4-C7CD-4c6f-BFDC-9B77AFBDC02C}\InprocServer32]

(Default) = "%System%\hgGyxVLe.dll"
ThreadingModel = "Both"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Control Panel\Settings]

Time = B0 CA 3F 3E A1 9A C9 01 00 00 00 00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellExecuteHooks]

{6D794CB4-C7CD-4c6f-BFDC-9B77AFBDC02C} = ""

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]

Sun Java Updater v7.5 = "%System%\javawt.exe"

so that javawt.exe runs every time Windows starts

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\hgGyxVLe]

Asynchronous = 0x00000001
DllName = "hgGyxVLe.dll"
Impersonate = 0x00000000
Logon = "o"
Logoff = "f"

so that hgGyxVLe.dll is installed as a Winlogon notification package

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\00cd0861]

(Default) = "44767A2ABE354E3D92914C6BDBC1E5FF&"

[HKEY_CURRENT_USER\Software\Microsoft\Installer]

(Default) = E0 B2 95 3E A1 9A C9 01

The following Registry Value was modified:

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3]

1A10 = 0x00000000
{AEBA21FA-782A-4A90-978D-B72164C80120} = 1A 37 61 59 23 52 35 0C 7A 5F 20 17 2F 1E 1A 19 0E 2B 01 73 13 37 13 12 14 1A 15 2A
{A8A88C49-5EB2-4990-A1A2-0876022C854F} = 1A 37 61 59 23 52 35 0C 7A 5F 20 17 2F 1E 1A 19 0E 2B 01 73 13 37 13 12 14 1A 15 2A

Other details

To mark the presence in the system, the following Mutex objects were created:

xQfA3cKa
IIEP151u

The following ports were open in the system:

Port	Protocol	Process
1033	TCP	[file and pathname of the sample #1]
1035	TCP	[file and pathname of the sample #1]
1061	TCP	javawt.exe (%System%\javawt.exe)
1062	TCP	javawt.exe (%System%\javawt.exe)
1063	TCP	javawt.exe (%System%\javawt.exe)
1064	TCP	javawt.exe (%System%\javawt.exe)
1093	TCP	javawt.exe (%System%\javawt.exe)

The following Host Names were requested from a host database:

www.whatismyip.com
?
mail.[user's domain]
[user's email address]
mx.[user's domain]
smtp.domain.com
smtp.[user's domain]
mx1.[user's domain]
mxs.[user's domain]
mail1.[user's domain]
relay.[user's domain]
ns.[user's domain]
gate.[user's domain]
206.137.17.89
lebanon-online.com.lb

There were registered attempts to establish connection with the remote hosts. The connection details are:

Remote Host	Port Number
?	43
206.137.17.89	43
lebanon-online.com.lb	1051

The following Internet Connection was established:

Server Name	Server Port	Connect as User	Connection Password
ak.imgag.com	80	(null)	(null)

The following GET requests were made:

imgag/css/agbeta/agi_base.css
imgag/css/agbeta/agi_layout4.css
imgag/css/agbeta/agi_ecard.css
imgag/js/built/ag/dojo/dojo.js
imgag/js/built/ag/ag/layers/core.js
imgag/js/built/ag/ag/layers/ext.js
imgag/js/built/ag/dojox/layers/storage.js
imgag/js/uut.js
imgag/agbeta/x.gif
imgag/agbeta/button/submit.gif
imgag/product/thumbs/3121626r.gif

The following HTTP URL was started reading:

http://whatismyip.com/automation/n09230945.asp

The following Internet download was started (the retrieved bits are saved into the local file):

URL to be downloaded	Filename for the downloaded bits
http://childhe.com/pas/apstpldr.dll.html?affid=171593&uid=&guid=44767A2ABE354E3D92914C6BDBC1E5FF	%System%\pmnoNDSM.dll

There was application-defined hook procedure installed into the hook chain (e.g. to monitor keystrokes). The installed hook is handled by the following module:

%System%\hgGyxVLe.dll

Generated SMTP traffic

Email Senders:

e-cards@hallmark.com
e-cards@americangreetings.com

Email Recipients:

mts@lebanon-online.com.lb
[user's email address]

Email Subjects:

You have received A Hallmark E-Card!
You have got a new E-Card from your friend!

Email Attachments:

postcard.zip (299,542 bytes)
e-card.zip (299,332 bytes)

Email Body:

You have recieved A Hallmark E-Card. Hello!You have recieved a Hallmark E-Card from your friend.To see it, check the attachment.There's something special about that E-Card feeling. We invite you to make a friend's day and send one.Hope to see you soon,Your friends at HallmarkYour privacy is our priority. Click the "Privacy and Security" link at the bottom of this E-mail to view our policy. Hallmark.com | Privacy & Security | Customer Service | Store Locator

eCards, Free Greeting Cards Online, Birthday Cards and Funny Animated eCards at American GreetingsAmericanGreetings.comJoin NowSign Insign inEnter the email address and password that you used to sign up for your Membership or to register your account and hit the "submit" button.email addresspassword forgot your password?remember me on this computer (recommended unless you are using a public computer)feedbackhelpecardsphoto giftscreate & printremindersinviteswallpapers & screensaverssearch ecards ▼ ΧYou have got a new E-Card from your friend! To see the complete card check the attachment.You're a Wonderful Friend Because you make me laugh... Because you're there for me even before I ask... Because you understand me even when I'm not making sense... Because I don't know what I'd ever do without you... That's why our friendship means so much to me.help centerecard site mapcreate & print site mapadvertise with usaffiliate programprivacy policyterms of serviceabout usinvestor relationspress roomrecallsAmericanGreetings.com is a service of , a subsidiary of American GreetingsCopyright ï¿½ 1997-2009 AG.com, Inc. all rights reserved.

Downloaded File Summary:

Download details:

Download retrieved: 1 March 2009 11:17:44
Processing time: 7 min 30 sec
Downloaded sample:

File MD5: 0x4A56334F3F65D45D90AA15C1BD2F3484
File SHA-1: 0x9DC0C1484500C73C5B39EA589532BD4E4833F7C0
Filesize: 48,128 bytes
Alias:

Trojan.Virtumonde [PCTools]
Trojan.Vundo [Symantec]
Trojan.Win32.Monder.atxg [Kaspersky Lab]
Vundo [McAfee]
Troj/Virtum-Gen [Sophos]
Trojan.Win32.Monder [Ikarus]

Summary of the findings:

What's been found	Severity Level
Downloads/requests other files from Internet.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

Attention! Characteristics of the following security risk was identified in the system:

Security Risk	Description
Trojan.Virtumonde	Virtumonde modifies the Windows Internet connection mechanism and display various pop-up advertisements.

Attention! The following threat category was identified:

Threat Category	Description
	A malicious trojan horse or bot that may represent security risk for the compromised system and/or its network environment

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%Temp%\tmp3.exe	125 bytes	MD5: 0x7C5F5A68051F6B0C0E9A2AD33C40D415 SHA-1: 0x120865765927A61AF83F02B83DC297EEDE61EC41	(not available)
2	%Temp%\tmp3.tmp	0 bytes	MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709	(not available)
3	[file and pathname of the sample #1]	48,128 bytes	MD5: 0x4A56334F3F65D45D90AA15C1BD2F3484 SHA-1: 0x9DC0C1484500C73C5B39EA589532BD4E4833F7C0	Trojan.Virtumonde [PCTools] Trojan.Vundo [Symantec] Trojan.Win32.Monder.atxg [Kaspersky Lab] Vundo [McAfee] Troj/Virtum-Gen [Sophos] Trojan.Win32.Monder [Ikarus]
4	%Windir%\Tasks\mhxcggjs.job	322 bytes	MD5: 0xFF75D682977B2F3A98F51A9A865F89F4 SHA-1: 0x798ADDF3645B1B2AF07E0A4BFF89CD947A59DE6A	(not available)

Notes:

%Temp% is a variable that refers to the temporary folder in the short path form. By default, this is C:\Documents and Settings\[UserName]\Local Settings\Temp\ (Windows NT/2000/XP).
%Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.

Memory Modifications

There was a new process created in the system:

Process Name	Process Filename	Main Module Size
[generic host process]	[generic host process filename]	20,480 bytes

Notes:

[generic host process filename] is a full path filename of [generic host process].

The following module was loaded into the address space of other process(es):

Module Name	Module Filename	Address Space Details
[filename of the sample #1]	[file and pathname of the sample #1]	Process name: [generic host process] Process filename: [generic host process filename] Address space: 0xB10000 - 0xB31000

Registry Modifications

The following Registry Key was created:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Preinstall

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Main]

Check_Associations = "no"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Preinstall]

ncache_ntp = 62 48 45 76 A2 9A C9 01

Other details

To mark the presence in the system, the following Mutex objects were created:

Global\zB50070
Global\f3c76214
arefitopentaloju
Global\zB50078
_!SHMSFTHISTORY!_
_SHuassist.mtx
Global\zB5009C
Global\zB100A4

The following Internet Connection was established:

Server Name	Server Port	Connect as User	Connection Password
childhe.com	80	(null)	(null)

The following GET requests were made:

pldr8?uid=&guid=&affid=169170&tid=txd30019&wci=b8cdd2b5g8b556139761968af718g8g8&vi=0&ci=0&li=0&hi=0&bi=0&ai=0
index.jpg

The data identified by the following URLs was then requested from the remote web server:

http://childhe.com/pldr8?uid=&guid=&affid=169170&tid=txd30019&wci=b8cdd2b5g8b556139761968af718g8g8&vi=0&ci=0&li=0&hi=0&bi=0&ai=0
localhost

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