General

  • Target

    c4e5e2955366f836221115076350eb7e

  • Size

    273KB

  • Sample

    231222-rv515adeg5

  • MD5

    c4e5e2955366f836221115076350eb7e

  • SHA1

    c15aaef0d40a2af528a0b7c0402fbecdd3954733

  • SHA256

    12fe1a5cfbef5b40d33d1586096588188e2f88c30eb7e75ccea7b88b87f85462

  • SHA512

    406ea97e09e33d01755ba6dd08d5551b2db0bfe9d5deaf21cd24f0b875796c44098cf9626a34af043cfb7c0d8f8600c9dda372f6b8af1bf6dd02467fa7d9aa46

  • SSDEEP

    6144:bpZYI1Gj+Ectos06yeVt0m4heAEWxziBUdPASAQIZ+kV82/WkSh8jhtz:FJttos06Rt0m4hhJsJVQ7kFPU4htz

Malware Config

Extracted

Family

darkcomet

Botnet

pc

C2

host12365485454.ddns.net:1604

192.168.0.125:1604

Mutex

DC_MUTEX-Q8QDW8F

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    locQi1ySlvoS

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    micro update

Targets

    • Target

      c4e5e2955366f836221115076350eb7e

    • Size

      273KB

    • MD5

      c4e5e2955366f836221115076350eb7e

    • SHA1

      c15aaef0d40a2af528a0b7c0402fbecdd3954733

    • SHA256

      12fe1a5cfbef5b40d33d1586096588188e2f88c30eb7e75ccea7b88b87f85462

    • SHA512

      406ea97e09e33d01755ba6dd08d5551b2db0bfe9d5deaf21cd24f0b875796c44098cf9626a34af043cfb7c0d8f8600c9dda372f6b8af1bf6dd02467fa7d9aa46

    • SSDEEP

      6144:bpZYI1Gj+Ectos06yeVt0m4heAEWxziBUdPASAQIZ+kV82/WkSh8jhtz:FJttos06Rt0m4hhJsJVQ7kFPU4htz

    • Darkcomet

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

    • Modifies WinLogon for persistence

    • Modifies firewall policy service

    • Modifies security service

    • Windows security bypass

    • Disables RegEdit via registry modification

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

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

    • Windows security modification

    • Adds Run key to start application

    • Program crash

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Defense Evasion

Modify Registry

7
T1112

Impair Defenses

2
T1562

Disable or Modify Tools

2
T1562.001

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Discovery

System Information Discovery

1
T1082

Tasks