PUP.Win32.BitcoinMiner_78127faff8

by malwarelabrobot on July 11th, 2013 in Malware Descriptions.

Trojan.Win32.BitMin.bz (Kaspersky), Trojan.Win32.Generic!BT (VIPRE), Trojan.CoinMiner!IK (Emsisoft), PUP.Win32.BitcoinMiner.FD, TrojanDropperVtimrun.YR (Lavasoft MAS)
Behaviour: Trojan-Dropper, Trojan, PUP


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: 78127faff890bc1d09b220f74d6e1e7a
SHA1: 54fe5168e84e59e6923614fc3c53bfc84fad5ca4
SHA256: 58a00470b44f9717630499b40b854cf4f05085f77deefec7ed7cbffd3e72f9f0
SSDeep: 12288:JtRXrUy90xJRvNZjNqVvXFa0sr gf4/HNdxe6rfsm3VpxZq0YAdZ8Pum640Ip:xUyiRHjNqFsr gg/HhrfR33YAdiR60p
Size: 1068544 bytes
File type: PE32
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: AirInstaller Inc.
Created at: 2013-02-17 09:00:50


Summary:

Trojan-Dropper. Trojan program, intended for stealth installation of other malware into user's system.
PUP. Potentially Unwanted Program. An application that does not display malicious behavior yet is installed without having first sought affirmative user consent for installation. Users may not realize, due to the nature of the installation procedure, that an application they have not explicitly agreed to has been installed. This category can also be used to classify other applications which in a certain context can be wanted e.g. remote administration tools or IRC clients.

Process activity

The PUP creates the following process(es):

78127faff890bc1d09b220f74d6e1e7a.exe:1760
cz.exe:1556

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

PS3JAI~1.EXE:872

File activity

The process 78127faff890bc1d09b220f74d6e1e7a.exe:1760 makes changes in a file system.
The PUP creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\IXP000.TMP\PS3JAI~1.EXE (17260 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\IXP000.TMP\cz.exe (9 bytes)

The process cz.exe:1556 makes changes in a file system.
The PUP creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Application Data\MIvQH\phatk.ptx (10385 bytes)
%Documents and Settings%\%current user%\Application Data\MIvQH\coinutil.dll (2336 bytes)
%Documents and Settings%\%current user%\Application Data\MIvQH\svchost.exe (7670 bytes)
%Documents and Settings%\%current user%\Application Data\MIvQH\taskengine.exe (9 bytes)
%Documents and Settings%\%current user%\Application Data\MIvQH\usft_ext.dll (39820 bytes)
%Documents and Settings%\%current user%\Application Data\MIvQH\phatk.cl (388 bytes)
%Documents and Settings%\%current user%\Application Data\MIvQH\miner.dll (17376 bytes)

Registry activity

The process 78127faff890bc1d09b220f74d6e1e7a.exe:1760 makes changes in a system registry.
The PUP creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "C4 38 98 B3 51 D1 D8 F8 A4 21 83 01 55 37 87 D4"

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce]
"wextract_cleanup0" = "rundll32.exe %System%\advpack.dll,DelNodeRunDLL32 C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\IXP000.TMP\"

The process cz.exe:1556 makes changes in a system registry.
The PUP creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "9D 79 15 91 94 2C C2 BA 74 04 DE 27 FE AA CE 39"

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

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

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"Default" = "%Documents and Settings%\%current user%\Application Data\MIvQH\taskengine.exe"

The process PS3JAI~1.EXE:872 makes changes in a system registry.
The PUP creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "81 99 C2 F8 77 BC 3E B1 FE 08 9E D2 63 8A E0 E7"

Network activity (URLs)

URL: hxxp://141.101.117.209/btcfiles/coinutil.dll Country: Europe
URL: api.bitcoin.cz IP: 176.31.157.132

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):

    78127faff890bc1d09b220f74d6e1e7a.exe:1760
    cz.exe:1556

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

    %Documents and Settings%\%current user%\Local Settings\Temp\IXP000.TMP\PS3JAI~1.EXE (17260 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\IXP000.TMP\cz.exe (9 bytes)
    %Documents and Settings%\%current user%\Application Data\MIvQH\phatk.ptx (10385 bytes)
    %Documents and Settings%\%current user%\Application Data\MIvQH\coinutil.dll (2336 bytes)
    %Documents and Settings%\%current user%\Application Data\MIvQH\svchost.exe (7670 bytes)
    %Documents and Settings%\%current user%\Application Data\MIvQH\taskengine.exe (9 bytes)
    %Documents and Settings%\%current user%\Application Data\MIvQH\usft_ext.dll (39820 bytes)
    %Documents and Settings%\%current user%\Application Data\MIvQH\phatk.cl (388 bytes)
    %Documents and Settings%\%current user%\Application Data\MIvQH\miner.dll (17376 bytes)

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

    [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce]
    "wextract_cleanup0" = "rundll32.exe %System%\advpack.dll,DelNodeRunDLL32 C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\IXP000.TMP\"

    [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
    "Default" = "%Documents and Settings%\%current user%\Application Data\MIvQH\taskengine.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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