Overview

overview

10

Static

static

3

17a6cf6240...66.exe

windows7-x64

10

17a6cf6240...66.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    17a6cf62409d259d281c82ae00259d66.bin

  • Size

    700KB

  • Sample

    240629-cjst4aydmc

  • MD5

    17a6cf62409d259d281c82ae00259d66

  • SHA1

    15c2bccc3f8bc41190eaa6b49da6c99eccf1602d

  • SHA256

    1ccaafea3b64fe2c5e7859d550ade584d93e7bdc28472317022693456c6f2c64

  • SHA512

    2d0e56b9117b7dd0f6f1910dad82b09f9e1d693d238422498c93c3d14e6de7ebdef4bd0decfc20582305b1ed41db98ff4bd447da72181dc97e6aa8601fd6110b

  • SSDEEP

    12288:/yPPQ1ufEoYFwm4jFySBXY3sHuss0dtyxvlrKnnmRjVLPrJHbFJ8:/yPPMpoY6HXY3Kusfexv4n6jVLxc

Score
10/10
darkcometååååååååååpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

åååååååååå

C2

ogdd.servemp3.com:4433

Mutex

DC_MUTEX-LGYC4QH

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    7UYk2EHbmDiQ

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      17a6cf62409d259d281c82ae00259d66.bin

    • Size

      700KB

    • MD5

      17a6cf62409d259d281c82ae00259d66

    • SHA1

      15c2bccc3f8bc41190eaa6b49da6c99eccf1602d

    • SHA256

      1ccaafea3b64fe2c5e7859d550ade584d93e7bdc28472317022693456c6f2c64

    • SHA512

      2d0e56b9117b7dd0f6f1910dad82b09f9e1d693d238422498c93c3d14e6de7ebdef4bd0decfc20582305b1ed41db98ff4bd447da72181dc97e6aa8601fd6110b

    • SSDEEP

      12288:/yPPQ1ufEoYFwm4jFySBXY3sHuss0dtyxvlrKnnmRjVLPrJHbFJ8:/yPPMpoY6HXY3Kusfexv4n6jVLxc

    Score
    10/10
    darkcometååååååååååpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks