Overview

overview

10

Static

static

cd6cc0bd75...79.exe

windows7-x64

10

cd6cc0bd75...79.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    cd6cc0bd759caca3a2b8c828b92b981468cd01211d17cb5ae51436719fdc3a79

  • Size

    388KB

  • Sample

    230130-e4cpqahb64

  • MD5

    bc41c3afa15794a513e935f8be52b439

  • SHA1

    35d0331f8d07693ca0633e72aab11651c57988c0

  • SHA256

    cd6cc0bd759caca3a2b8c828b92b981468cd01211d17cb5ae51436719fdc3a79

  • SHA512

    4a29bc20d4b6854bdd72a6e2e526d16409964f4d9816e1727d63d4ec18123b0c48a26e34ebe58fc5a0646fb4941e4297dda2d21035106ecc47ba03e338e0561c

  • SSDEEP

    6144:9n9uJ4oXHig4BQ+pyGlv9ZQ+wjEqhLiLhjY0G2k262rKZvNny1PRJ:9nYbXLQyG99ZQ+shLU9YD26Ep1/

Score
10/10
darkcometguest16evasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

making.no-ip.info:1604

Mutex

DC_MUTEX-LG98A8Z

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    DEdYqFkh8e6g

  • install

    true

  • offline_keylogger

    true

  • password

    0123456789

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      cd6cc0bd759caca3a2b8c828b92b981468cd01211d17cb5ae51436719fdc3a79

    • Size

      388KB

    • MD5

      bc41c3afa15794a513e935f8be52b439

    • SHA1

      35d0331f8d07693ca0633e72aab11651c57988c0

    • SHA256

      cd6cc0bd759caca3a2b8c828b92b981468cd01211d17cb5ae51436719fdc3a79

    • SHA512

      4a29bc20d4b6854bdd72a6e2e526d16409964f4d9816e1727d63d4ec18123b0c48a26e34ebe58fc5a0646fb4941e4297dda2d21035106ecc47ba03e338e0561c

    • SSDEEP

      6144:9n9uJ4oXHig4BQ+pyGlv9ZQ+wjEqhLiLhjY0G2k262rKZvNny1PRJ:9nYbXLQyG99ZQ+shLU9YD26Ep1/

    Score
    10/10
    darkcometguest16evasionpersistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Executes dropped EXE

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      evasion

    • 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.

    • 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

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Hidden Files and Directories

2
T1158

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks