Overview

overview

10

Static

static

10

421cc26f9f...29.exe

windows7_x64

10

421cc26f9f...29.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    421cc26f9fa03acda748215dd8f5d3cbb22eff317fbcfacfbb2e6e6156309429

  • Size

    283KB

  • Sample

    220520-1jm6lshbcr

  • MD5

    a9d55d08eecc9a13a7526c6757376596

  • SHA1

    d7b781ba204e4f2dbb67dbbb743fb843a7c72bab

  • SHA256

    421cc26f9fa03acda748215dd8f5d3cbb22eff317fbcfacfbb2e6e6156309429

  • SHA512

    0045848210d02543d3d4516c9e20915890b74415decd53892f8d7a409de54073c1c335e3249860f9ff901adec57b0a5cb787f45a170dab295349f43daa6bf684

Score
10/10
darkcometallevasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

All

C2

levkrasov.ddns.net:1604

Mutex

DC_MUTEX-PNB7RY0

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    JXB7ZZYb5lzu

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      421cc26f9fa03acda748215dd8f5d3cbb22eff317fbcfacfbb2e6e6156309429

    • Size

      283KB

    • MD5

      a9d55d08eecc9a13a7526c6757376596

    • SHA1

      d7b781ba204e4f2dbb67dbbb743fb843a7c72bab

    • SHA256

      421cc26f9fa03acda748215dd8f5d3cbb22eff317fbcfacfbb2e6e6156309429

    • SHA512

      0045848210d02543d3d4516c9e20915890b74415decd53892f8d7a409de54073c1c335e3249860f9ff901adec57b0a5cb787f45a170dab295349f43daa6bf684

    Score
    10/10
    darkcometevasionpersistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • Disables RegEdit via registry modification

      evasion

    • Disables Task Manager via registry modification

      evasion

    • 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
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

1
T1031

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

3
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