SpyTool.Win32.Ardamax_4d19eb736d

by malwarelabrobot on October 21st, 2013 in Malware Descriptions.

HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.Win32.Generic!BT (VIPRE), SpyTool.Win32.Ardamax.FD, GenericEmailWorm.YR, SpyToolArdamax.YR (Lavasoft MAS)
Behaviour: Trojan, Worm, EmailWorm, SpyTool


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

Summary
Technical Details
Removal Recommendations

MD5: 4d19eb736d6ba093ad6a538e51d5ae4a
SHA1: a5af5b50edf965b685e06a229ec0c4073393d3e7
SHA256: e8c37b89ea2f8b14546046127658ed96eca932a24d9fa6b9d1044dff5489b1a4
SSDeep: 49152:qfiOEVsyk7lOEx2RMJ twhZ8F7hI1yqNLB91j6412C:zOy4cWn8PcyqN1Hj6i2C
Size: 2017603 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2007-03-31 18:09:55


Summary:

SpyTool. A program used to apply passive protection methods to spyware, such as obfuscation, encryption or polymorphism. The original malicious program is usually encrypted/compressed and stored inside the wrapper.

Payload

Behaviour Description
EmailWorm Worm can send e-mails.


Process activity

The SpyTool creates the following process(es):

4d19eb736d6ba093ad6a538e51d5ae4a.exe:2636
IMG-20121015-00021.jpg.exe:2744

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

VLD.exe:904

File activity

The process 4d19eb736d6ba093ad6a538e51d5ae4a.exe:2636 makes changes in a file system.
The SpyTool creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\IMG-20121015-00021.jpg.exe (63356 bytes)

The SpyTool deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\nsy1.tmp (0 bytes)

The process VLD.exe:904 makes changes in a file system.
The SpyTool creates and/or writes to the following file(s):

%Documents and Settings%\All Users\Application Data\TLC\VLD.005 (514 bytes)

The process IMG-20121015-00021.jpg.exe:2744 makes changes in a file system.
The SpyTool creates and/or writes to the following file(s):

%Documents and Settings%\All Users\Application Data\JIEFTM\VLD.01 (82 bytes)
%Documents and Settings%\All Users\Application Data\JIEFTM\VLD.00 (2 bytes)
%Documents and Settings%\All Users\Application Data\JIEFTM\VLD.exe (15021 bytes)
%Documents and Settings%\All Users\Application Data\JIEFTM\VLD.02 (57 bytes)

Registry activity

The process 4d19eb736d6ba093ad6a538e51d5ae4a.exe:2636 makes changes in a system registry.
The SpyTool creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "50 C6 16 86 08 31 17 EA BB 82 BC C7 5E D5 13 55"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f3-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"

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

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

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{773a730e-74fb-11e2-b597-000c293bdf2f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp]
"IMG-20121015-00021.jpg.exe" = "IMG-20121015-00021.jpg"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f2-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f5-7454-11e2-b4cd-806d6172696f}]
"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\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

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

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

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

The SpyTool 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 SpyTool 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 process VLD.exe:904 makes changes in a system registry.
The SpyTool creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "1C 95 E2 A1 2A 12 87 D3 81 0F 93 F5 CC B6 01 C9"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f3-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{773a730e-74fb-11e2-b597-000c293bdf2f}]
"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\{fdd9f6f2-7454-11e2-b4cd-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\{fdd9f6f5-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"

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

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"VLD Start" = "%Documents and Settings%\All Users\Application Data\JIEFTM\VLD.exe"

The process IMG-20121015-00021.jpg.exe:2744 makes changes in a system registry.
The SpyTool creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "5F F7 B3 B2 D1 6D EF 72 7A 1F 0B 07 39 3B 6D F6"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f3-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"

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

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

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{773a730e-74fb-11e2-b597-000c293bdf2f}]
"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\{fdd9f6f2-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%Documents and Settings%\All Users\Application Data\JIEFTM]
"VLD.exe" = "VLD"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f5-7454-11e2-b4cd-806d6172696f}]
"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\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

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

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

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

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

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

Network activity (URLs)

No activity has been detected.

Rootkit activity

No anomalies have been detected.

Propagation


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):

    4d19eb736d6ba093ad6a538e51d5ae4a.exe:2636
    IMG-20121015-00021.jpg.exe:2744

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

    %Documents and Settings%\%current user%\Local Settings\Temp\IMG-20121015-00021.jpg.exe (63356 bytes)
    %Documents and Settings%\All Users\Application Data\TLC\VLD.005 (514 bytes)
    %Documents and Settings%\All Users\Application Data\JIEFTM\VLD.01 (82 bytes)
    %Documents and Settings%\All Users\Application Data\JIEFTM\VLD.00 (2 bytes)
    %Documents and Settings%\All Users\Application Data\JIEFTM\VLD.exe (15021 bytes)
    %Documents and Settings%\All Users\Application Data\JIEFTM\VLD.02 (57 bytes)

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

    [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
    "VLD Start" = "%Documents and Settings%\All Users\Application Data\JIEFTM\VLD.exe"

  5. Reboot the computer.

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