General

  • Target

    b188d76edd8c90e1befa9da14db4823d7ae0764dc7c6f519e95d38933bc29fb2

  • Size

    349KB

  • Sample

    230130-e4k14aaf91

  • MD5

    d38d12b79a5aa7e5510406e5d8e009b9

  • SHA1

    4e75d734d12139b310fee3dfbfefc7c53f2145b6

  • SHA256

    b188d76edd8c90e1befa9da14db4823d7ae0764dc7c6f519e95d38933bc29fb2

  • SHA512

    28dceec5780cad9456ef214da564ae2aefbf3f1de8a992bb3134fadd0835298b2dd90ddd9318d8349b6da1b12d08566d0f483814f0745c84aa2a21cb8ad01481

  • SSDEEP

    6144:JcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37uYuPlbL:JcW7KEZlPzCy37

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

3l3ctr0n.no-ip.org:1605

Mutex

DC_MUTEX-HTCGFMT

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    NKbpud9BzL7p

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      b188d76edd8c90e1befa9da14db4823d7ae0764dc7c6f519e95d38933bc29fb2

    • Size

      349KB

    • MD5

      d38d12b79a5aa7e5510406e5d8e009b9

    • SHA1

      4e75d734d12139b310fee3dfbfefc7c53f2145b6

    • SHA256

      b188d76edd8c90e1befa9da14db4823d7ae0764dc7c6f519e95d38933bc29fb2

    • SHA512

      28dceec5780cad9456ef214da564ae2aefbf3f1de8a992bb3134fadd0835298b2dd90ddd9318d8349b6da1b12d08566d0f483814f0745c84aa2a21cb8ad01481

    • SSDEEP

      6144:JcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37uYuPlbL:JcW7KEZlPzCy37

    • Darkcomet

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

    • Modifies WinLogon for persistence

    • 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

    • Adds Run key to start application

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Winlogon Helper DLL

1
T1004

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Tasks