Overview

overview

10

Static

static

10

39c1e6b2be...40.exe

windows7_x64

10

39c1e6b2be...40.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    39c1e6b2be52d7021d682e6eb9bcf94808e43104dd82317cd7724ba83c923240

  • Size

    252KB

  • Sample

    220520-3xcm5shfe5

  • MD5

    feed791679eb25e2ceb17ef7bcf86f59

  • SHA1

    7c7107ca75819e7155440319b8cee889947ce494

  • SHA256

    39c1e6b2be52d7021d682e6eb9bcf94808e43104dd82317cd7724ba83c923240

  • SHA512

    3c458c1c9b072256e55b03de3c67d312383969de36118fcf729a1c800c8d05d810dd6f31f59958523c7053b718752b8666c6ed21c5d629173001a5736ac9e423

Score
10/10
darkcometallevasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

All

C2

31.128.147.14:1604

31.128.147.14:81
Mutex

DC_MUTEX-MK6PJ00

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    qf64xyxplhl0

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      39c1e6b2be52d7021d682e6eb9bcf94808e43104dd82317cd7724ba83c923240

    • Size

      252KB

    • MD5

      feed791679eb25e2ceb17ef7bcf86f59

    • SHA1

      7c7107ca75819e7155440319b8cee889947ce494

    • SHA256

      39c1e6b2be52d7021d682e6eb9bcf94808e43104dd82317cd7724ba83c923240

    • SHA512

      3c458c1c9b072256e55b03de3c67d312383969de36118fcf729a1c800c8d05d810dd6f31f59958523c7053b718752b8666c6ed21c5d629173001a5736ac9e423

    Score
    10/10
    darkcometevasionpersistencerattrojanupx

    • 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
    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