Overview

overview

10

Static

static

c1698f1ccc...dc.exe

windows7-x64

10

c1698f1ccc...dc.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    c1698f1cccd0cf39d9ef3aba436b1beaf17b6b8e4d712d1e99fa063fe3850bdc

  • Size

    271KB

  • Sample

    221126-2y8arsbf26

  • MD5

    eb0ab5c020d77b0facffe58e4aac1b7b

  • SHA1

    2e1802b031d8ab32f6644cd364188bebdd79b002

  • SHA256

    c1698f1cccd0cf39d9ef3aba436b1beaf17b6b8e4d712d1e99fa063fe3850bdc

  • SHA512

    4ffa02ac5489b0eb8ae63f9e4f6410051a0a685bacde15d7b4571a9bb2276e80d0b9a1c4a6213d4313b05930a056c4a6153bf60caf39121698040e5d8f119492

  • SSDEEP

    6144:mgT+seOpJzj1RiZC+Z38N1ppv+ab5qDZLaxbqxBY9WSP:qrAz6ZC+N8fGaCpaxbqxBuP

Score
10/10
darkcometguest16persistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

.duckdns.org:1604

Mutex

DC_MUTEX-V5NVLP0

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    xFLum93EqW7N

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      c1698f1cccd0cf39d9ef3aba436b1beaf17b6b8e4d712d1e99fa063fe3850bdc

    • Size

      271KB

    • MD5

      eb0ab5c020d77b0facffe58e4aac1b7b

    • SHA1

      2e1802b031d8ab32f6644cd364188bebdd79b002

    • SHA256

      c1698f1cccd0cf39d9ef3aba436b1beaf17b6b8e4d712d1e99fa063fe3850bdc

    • SHA512

      4ffa02ac5489b0eb8ae63f9e4f6410051a0a685bacde15d7b4571a9bb2276e80d0b9a1c4a6213d4313b05930a056c4a6153bf60caf39121698040e5d8f119492

    • SSDEEP

      6144:mgT+seOpJzj1RiZC+Z38N1ppv+ab5qDZLaxbqxBY9WSP:qrAz6ZC+N8fGaCpaxbqxBuP

    Score
    10/10
    darkcometguest16persistencerattrojanupx

    • 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.

    • 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