Overview

overview

10

Static

static

10

cee4e670f5...9e.exe

windows7_x64

10

cee4e670f5...9e.exe

windows10_x64

10

Sharing

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General

  • Target

    cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e

  • Size

    690KB

  • Sample

    210922-rl1eaachh4

  • MD5

    723baed58f250509d277de75a3178be8

  • SHA1

    d5c190e5acb7f4e8d9f6286e4f48fa9bfcd1325c

  • SHA256

    cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e

  • SHA512

    01af4ae85aad93e59cc93f82f82c2fc8f7b4f9166a7abdcb32b85dfd417dd379064aead960746b51d0f147fdec64ea261470de31e6fb67add96836a0651c954b

Score
10/10
darkcometguest16evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

fantomazzz.ddns.net:1604

Mutex

DC_MUTEX-H4MJNYC

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    zASJD9aEWq6M

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e

    • Size

      690KB

    • MD5

      723baed58f250509d277de75a3178be8

    • SHA1

      d5c190e5acb7f4e8d9f6286e4f48fa9bfcd1325c

    • SHA256

      cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e

    • SHA512

      01af4ae85aad93e59cc93f82f82c2fc8f7b4f9166a7abdcb32b85dfd417dd379064aead960746b51d0f147fdec64ea261470de31e6fb67add96836a0651c954b

    Score
    10/10
    darkcometguest16evasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • Modifies security service

      evasion

    • Windows security bypass

      evasiontrojan

    • 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

    • 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
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

2
T1031

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

7
T1112

Disabling Security Tools

2
T1089

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