Overview

overview

10

Static

static

4389d5af6f...98.exe

windows7-x64

10

4389d5af6f...98.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    4389d5af6fcb92a4b4aa14468339b09ee3bbc5188e568983340380aaa3ed0198

  • Size

    604KB

  • Sample

    221125-cqeaaahb51

  • MD5

    46a36b28a6f07b76ea511a8ae0c2aa3a

  • SHA1

    88de3a8bbeff45b802c5f5b19c7aacf88dd235ed

  • SHA256

    4389d5af6fcb92a4b4aa14468339b09ee3bbc5188e568983340380aaa3ed0198

  • SHA512

    65b7b53c93b35b65d803fb4ba67ebae0fd42aafb5a71d7b14888da49286ef6dd9f731b8d033c9f86ef6bdeb1949ac46230ca6da05b3803419813dc134b79e83c

  • SSDEEP

    12288:qDboBfrFT0u7kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk:7Bfr/HiJw7DxD

Score
10/10
darkcometrepairedpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

REPAIRED

C2

susanrosanne.ddns.net:8991

Mutex

DC_MUTEX-MTLJCHX

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    v3RMsCdzjW76

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      4389d5af6fcb92a4b4aa14468339b09ee3bbc5188e568983340380aaa3ed0198

    • Size

      604KB

    • MD5

      46a36b28a6f07b76ea511a8ae0c2aa3a

    • SHA1

      88de3a8bbeff45b802c5f5b19c7aacf88dd235ed

    • SHA256

      4389d5af6fcb92a4b4aa14468339b09ee3bbc5188e568983340380aaa3ed0198

    • SHA512

      65b7b53c93b35b65d803fb4ba67ebae0fd42aafb5a71d7b14888da49286ef6dd9f731b8d033c9f86ef6bdeb1949ac46230ca6da05b3803419813dc134b79e83c

    • SSDEEP

      12288:qDboBfrFT0u7kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk:7Bfr/HiJw7DxD

    Score
    10/10
    darkcometrepairedpersistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Executes dropped EXE

    • UPX packed file

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

      upx

    • Checks computer location settings

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

    • Drops startup file

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks