SpyTool.Win32.Ardamax_4c7dab9dcf

by malwarelabrobot on September 15th, 2013 in Malware Descriptions.

HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.Win32.Gbot.aakv (v) (VIPRE), Trojan-Spy.Win32.Ardamax!IK (Emsisoft), SpyTool.Win32.Ardamax.FD, GenericEmailWorm.YR, SpyToolArdamax.YR (Lavasoft MAS)
Behaviour: Trojan-Spy, 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: 4c7dab9dcff8d100c535263d3576e74a
SHA1: d48011e284d2021f9d96ba6cbefbeedf756a57b0
SHA256: 22d7cf7936407df465f8cf05faed251f516a9a01a0926bcf7973a70122924b38
SSDeep: 49152:PQtZw/3AgAUFKl7ylPQ1WRkFTakPeuzbiqf:PQtZVUSzukneufh
Size: 2050560 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2013-02-21 16:47:10


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):

4c7dab9dcff8d100c535263d3576e74a.exe:432

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

BNN.exe:1900

File activity

The process BNN.exe:1900 makes changes in a file system.
The SpyTool creates and/or writes to the following file(s):

%Documents and Settings%\All Users\Application Data\GGD\Screen_2013-09-14_10-10-49.html (743 bytes)
%Documents and Settings%\All Users\Application Data\GGD\Screen_2013-09-14_10-09-49.jpg (132 bytes)
%Documents and Settings%\All Users\Application Data\GGD\BNN.005 (3427 bytes)
%Documents and Settings%\All Users\Application Data\GGD\Screen_2013-09-14_10-09-19.html (2589 bytes)
%Documents and Settings%\All Users\Application Data\GGD\Screen_2013-09-14_10-10-19.jpg (88 bytes)
%Documents and Settings%\All Users\Application Data\GGD\Screen_2013-09-14_10-10-19.html (1486 bytes)
%Documents and Settings%\All Users\Application Data\GGD\Screen_2013-09-14_10-09-19.jpg (129 bytes)
%Documents and Settings%\All Users\Application Data\GGD\Screen_2013-09-14_10-10-49.jpg (44 bytes)

The SpyTool deletes the following file(s):

%Documents and Settings%\All Users\Application Data\GGD\Screen_2013-09-14_10-10-49.html (0 bytes)
%Documents and Settings%\All Users\Application Data\GGD\Screen_2013-09-14_10-09-49.jpg (0 bytes)
%Documents and Settings%\All Users\Application Data\GGD\Screen_2013-09-14_10-09-19.html (0 bytes)
%Documents and Settings%\All Users\Application Data\GGD\Screen_2013-09-14_10-10-19.jpg (0 bytes)
%Documents and Settings%\All Users\Application Data\GGD\Screen_2013-09-14_10-10-19.html (0 bytes)
%Documents and Settings%\All Users\Application Data\GGD\Screen_2013-09-14_10-09-19.jpg (0 bytes)
%Documents and Settings%\All Users\Application Data\GGD\Screen_2013-09-14_10-10-49.jpg (0 bytes)

The process 4c7dab9dcff8d100c535263d3576e74a.exe:432 makes changes in a file system.
The SpyTool creates and/or writes to the following file(s):

%Documents and Settings%\All Users\Application Data\OLEOGS\BNN.01 (81 bytes)
%Documents and Settings%\All Users\Application Data\OLEOGS\BNN.00 (2 bytes)
%Documents and Settings%\All Users\Application Data\OLEOGS\BNN.exe (15021 bytes)
%Documents and Settings%\All Users\Application Data\OLEOGS\BNN.02 (56 bytes)

Registry activity

The process BNN.exe:1900 makes changes in a system registry.
The SpyTool creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "30 9B 9F 82 A1 3B 00 80 7C FE 8A 41 DE 44 A0 DB"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[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\{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]
"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]
"BNN Start" = "%Documents and Settings%\All Users\Application Data\OLEOGS\BNN.exe"

The process 4c7dab9dcff8d100c535263d3576e74a.exe:432 makes changes in a system registry.
The SpyTool creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "BB 7A 94 84 40 83 A0 95 38 AC 42 D7 CB 62 40 EE"

[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"

[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 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\{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"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

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

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

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 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"

Network activity (URLs)

URL IP
smtp.googlemail.com 173.194.68.16


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):

    4c7dab9dcff8d100c535263d3576e74a.exe:432

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

    %Documents and Settings%\All Users\Application Data\GGD\Screen_2013-09-14_10-10-49.html (743 bytes)
    %Documents and Settings%\All Users\Application Data\GGD\Screen_2013-09-14_10-09-49.jpg (132 bytes)
    %Documents and Settings%\All Users\Application Data\GGD\BNN.005 (3427 bytes)
    %Documents and Settings%\All Users\Application Data\GGD\Screen_2013-09-14_10-09-19.html (2589 bytes)
    %Documents and Settings%\All Users\Application Data\GGD\Screen_2013-09-14_10-10-19.jpg (88 bytes)
    %Documents and Settings%\All Users\Application Data\GGD\Screen_2013-09-14_10-10-19.html (1486 bytes)
    %Documents and Settings%\All Users\Application Data\GGD\Screen_2013-09-14_10-09-19.jpg (129 bytes)
    %Documents and Settings%\All Users\Application Data\GGD\Screen_2013-09-14_10-10-49.jpg (44 bytes)
    %Documents and Settings%\All Users\Application Data\OLEOGS\BNN.01 (81 bytes)
    %Documents and Settings%\All Users\Application Data\OLEOGS\BNN.00 (2 bytes)
    %Documents and Settings%\All Users\Application Data\OLEOGS\BNN.exe (15021 bytes)
    %Documents and Settings%\All Users\Application Data\OLEOGS\BNN.02 (56 bytes)

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

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

  5. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
  6. Reboot the computer.

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

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