Overview

overview

10

Static

static

2c9f925fbe...a7.exe

windows7-x64

10

2c9f925fbe...a7.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7

  • Size

    464KB

  • Sample

    221123-tcrrwsdf85

  • MD5

    455a2fad3532faddf2835a8022988081

  • SHA1

    8d5d184f381a175fff723458fda8999bde0d9438

  • SHA256

    2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7

  • SHA512

    e6559c5076ec9d4ccdff2926fa5161b398c462457c6242cd079dfeecc263bc7d1d0b319397aa0d2f6a10579966aa5b020bccd1dc48bf2335c6b266268113cb2f

  • SSDEEP

    6144:f2+6gLCdeFBHGz1iRkHDQA9v+bxcawGTZuUG6CAzQIQn:hadeFdK1iSjQQ2cawQkUG63M

Score
10/10
darkcometguest16evasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

212.253.69.142:81

Mutex

DC_MUTEX-TVELAZ0

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    j9iS5ANHsKQh

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7

    • Size

      464KB

    • MD5

      455a2fad3532faddf2835a8022988081

    • SHA1

      8d5d184f381a175fff723458fda8999bde0d9438

    • SHA256

      2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7

    • SHA512

      e6559c5076ec9d4ccdff2926fa5161b398c462457c6242cd079dfeecc263bc7d1d0b319397aa0d2f6a10579966aa5b020bccd1dc48bf2335c6b266268113cb2f

    • SSDEEP

      6144:f2+6gLCdeFBHGz1iRkHDQA9v+bxcawGTZuUG6CAzQIQn:hadeFdK1iSjQQ2cawQkUG63M

    Score
    10/10
    darkcometguest16evasionpersistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies security service

      evasion

    • Windows security bypass

      evasiontrojan

    • 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

    • Windows security modification

      evasiontrojan

    • 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

5
T1112

Disabling Security Tools

2
T1089

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks