Overview

overview

10

Static

static

f77ec75d9c...24.exe

windows7-x64

10

f77ec75d9c...24.exe

windows10-2004-x64

5

Sharing

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General

  • Target

    f77ec75d9c444361b57f286bd40726bedeb8106ab18c02ff6a59ef2e3f4e5f24

  • Size

    887KB

  • Sample

    221003-cqvbhadefp

  • MD5

    6e91f9d1c4b9fcf81c4a30e99358fde0

  • SHA1

    4eeaf371809f8078e7ed0dc18e196e72c505f871

  • SHA256

    f77ec75d9c444361b57f286bd40726bedeb8106ab18c02ff6a59ef2e3f4e5f24

  • SHA512

    b462cd0cd1d42a7081f254a118f75b58fab8750fd2348155eb04ba932274715899615bf05f8e0e923bb9abe02041ee582158c1e77e8c2df8d9efbd25fc00c3fe

  • SSDEEP

    12288:HWzsaCUc+TcN09kaTUfucrmdztxZcSHg0yJnsumdjANlKk1F:2zs1wmaTU4dRxvgTJsjViB

Score
10/10
darkcometguest16evasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

hackdarkcomet.ddns.net:1604

Mutex

DC_MUTEX-BRR8PJY

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    PglT1bwfgHY5

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      f77ec75d9c444361b57f286bd40726bedeb8106ab18c02ff6a59ef2e3f4e5f24

    • Size

      887KB

    • MD5

      6e91f9d1c4b9fcf81c4a30e99358fde0

    • SHA1

      4eeaf371809f8078e7ed0dc18e196e72c505f871

    • SHA256

      f77ec75d9c444361b57f286bd40726bedeb8106ab18c02ff6a59ef2e3f4e5f24

    • SHA512

      b462cd0cd1d42a7081f254a118f75b58fab8750fd2348155eb04ba932274715899615bf05f8e0e923bb9abe02041ee582158c1e77e8c2df8d9efbd25fc00c3fe

    • SSDEEP

      12288:HWzsaCUc+TcN09kaTUfucrmdztxZcSHg0yJnsumdjANlKk1F:2zs1wmaTU4dRxvgTJsjViB

    Score
    10/10
    darkcometguest16evasionpersistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • Executes dropped EXE

    • UPX packed file

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

      upx

    • 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

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

3
T1112

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks