General

  • Target

    4a485db03e2ee5ab14422d0617c17c6f4b04e4162e32dd9e09e32ddf8d45e6ae

  • Size

    1.2MB

  • Sample

    221126-clzenaea22

  • MD5

    ad4e2774b2931257963ef9412ee8c859

  • SHA1

    ded268e93c4e856f32bf7d9ae91530063a5fb35a

  • SHA256

    4a485db03e2ee5ab14422d0617c17c6f4b04e4162e32dd9e09e32ddf8d45e6ae

  • SHA512

    49f0e9477dccb7eba0079da7a969e97960ff6c88558fee33060be9fd2258589c6ed38f2ce0a08a99a10d8d1a804f6d0d90d748da68607cf855a979cef9536ca4

  • SSDEEP

    24576:IhkL1xAjyblhDSrXx7Y0OryiCzQ7+DqKt1ihZl+UGWImbvZrDBS:wkL1eybl1Sr16rylzE6qKfihr+UGWImb

Malware Config

Extracted

Family

darkcomet

Botnet

SA-MP Players

C2

xp.noip.me:1604

xp1.noip.me:1604

xp2.noip.me:1604

xp3.noip.me:1604

xp4.noip.me:1604

xp5.noip.me:1604

xp.noip.me:1605

xp1.noip.me:1605

xp2.noip.me:1605

xp3.noip.me:1605

xp4.noip.me:1605

xp5.noip.me:1605

Mutex

DC_MUTEX-QF340FQ

Attributes
  • InstallPath

    system\update.exe

  • gencode

    42zcgVwM0zh1

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      4a485db03e2ee5ab14422d0617c17c6f4b04e4162e32dd9e09e32ddf8d45e6ae

    • Size

      1.2MB

    • MD5

      ad4e2774b2931257963ef9412ee8c859

    • SHA1

      ded268e93c4e856f32bf7d9ae91530063a5fb35a

    • SHA256

      4a485db03e2ee5ab14422d0617c17c6f4b04e4162e32dd9e09e32ddf8d45e6ae

    • SHA512

      49f0e9477dccb7eba0079da7a969e97960ff6c88558fee33060be9fd2258589c6ed38f2ce0a08a99a10d8d1a804f6d0d90d748da68607cf855a979cef9536ca4

    • SSDEEP

      24576:IhkL1xAjyblhDSrXx7Y0OryiCzQ7+DqKt1ihZl+UGWImbvZrDBS:wkL1eybl1Sr16rylzE6qKfihr+UGWImb

    • Darkcomet

      DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

    • Modifies WinLogon for persistence

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Winlogon Helper DLL

1
T1004

Registry Run Keys / Startup Folder

1
T1060

Hidden Files and Directories

1
T1158

Defense Evasion

Modify Registry

2
T1112

Hidden Files and Directories

1
T1158

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Tasks