Overview

overview

10

Static

static

10

cea317bf98...JC.exe

windows7-x64

10

cea317bf98...JC.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    cea317bf984e8642317f2ea6700f0f40exe_JC.exe

  • Size

    658KB

  • Sample

    230916-wrxykacf4s

  • MD5

    cea317bf984e8642317f2ea6700f0f40

  • SHA1

    b1e4a6444e78df514e7f9907b4dea4b84483d6a0

  • SHA256

    e270f2c865490cdfd709732746bb109a17c3869fc7332b453d8fcb723d739140

  • SHA512

    101e3a26832a3231e0bd1fe747aa41f6f329fea5f77eba19507def0de21802de3663208d54e7ead59d0e51cc0412372245521b181f525216a0593b242055971b

  • SSDEEP

    12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hI:KZ1xuVVjfFoynPaVBUR8f+kN10EBC

Score
10/10
darkcometguest16evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:200

Mutex

DC_MUTEX-2FTZLRG

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    VK2SGSf1AiHA

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      cea317bf984e8642317f2ea6700f0f40exe_JC.exe

    • Size

      658KB

    • MD5

      cea317bf984e8642317f2ea6700f0f40

    • SHA1

      b1e4a6444e78df514e7f9907b4dea4b84483d6a0

    • SHA256

      e270f2c865490cdfd709732746bb109a17c3869fc7332b453d8fcb723d739140

    • SHA512

      101e3a26832a3231e0bd1fe747aa41f6f329fea5f77eba19507def0de21802de3663208d54e7ead59d0e51cc0412372245521b181f525216a0593b242055971b

    • SSDEEP

      12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hI:KZ1xuVVjfFoynPaVBUR8f+kN10EBC

    Score
    10/10
    darkcometguest16evasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence
    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

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks