Overview

overview

10

Static

static

10

9c6bc7f7ff...16.exe

windows7-x64

10

9c6bc7f7ff...16.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    9c6bc7f7ff315be34ac2e695af9c30b687ccf95dfb9930b325fa835c77749116

  • Size

    658KB

  • Sample

    221201-ac1j9agd97

  • MD5

    5cf32ec15e00b02d13718144a8ff9309

  • SHA1

    df13529a047ea0173ecd503cfae380bb52405884

  • SHA256

    9c6bc7f7ff315be34ac2e695af9c30b687ccf95dfb9930b325fa835c77749116

  • SHA512

    53bacfc2841318d1355312a34386298db0e2457cd87200ee6c013e6f140b4ae5bcf243b04111194353d4e359fc39af88c03add3fd4b4b6121d050956b87ced37

  • SSDEEP

    12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hj:KZ1xuVVjfFoynPaVBUR8f+kN10EB9

Score
10/10
darkcometintranetevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

intranet

C2

ultim-8.myftp.org:60667

Mutex

DC_MUTEX-5JL5ACG

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    TqMww6bBDHyV

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      9c6bc7f7ff315be34ac2e695af9c30b687ccf95dfb9930b325fa835c77749116

    • Size

      658KB

    • MD5

      5cf32ec15e00b02d13718144a8ff9309

    • SHA1

      df13529a047ea0173ecd503cfae380bb52405884

    • SHA256

      9c6bc7f7ff315be34ac2e695af9c30b687ccf95dfb9930b325fa835c77749116

    • SHA512

      53bacfc2841318d1355312a34386298db0e2457cd87200ee6c013e6f140b4ae5bcf243b04111194353d4e359fc39af88c03add3fd4b4b6121d050956b87ced37

    • SSDEEP

      12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hj:KZ1xuVVjfFoynPaVBUR8f+kN10EB9

    Score
    10/10
    darkcometintranetevasionpersistencerattrojan

    • 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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • 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