Overview

overview

10

Static

static

10

5ef891b82e...90.exe

windows7-x64

10

5ef891b82e...90.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    5ef891b82e3bf3810d99ac3535d070c3b4615adfcac5d158a3b5b8ea369d9190

  • Size

    658KB

  • Sample

    221125-kgd7xshd4t

  • MD5

    f7bf4b5a76924169cc5bf45cf23902b9

  • SHA1

    3cbcd664a2b51eba71c9efe113e15515e9c900c1

  • SHA256

    5ef891b82e3bf3810d99ac3535d070c3b4615adfcac5d158a3b5b8ea369d9190

  • SHA512

    cdedf956f723bd20f723cb9892d684af18fef9a58eeb67939b04fdd96e18c216adef58a7ab22ab39a6b77d182eb8fdd1e63b936d980d3c5aa3e296661a88a222

  • SSDEEP

    12288:C9HMeUmcufrvA3kb445UEJ2jsWiD4EvFuu4cNgZhCiZKD/XdyFQ:uiBIGkbxqEcjsWiDxguehC2Sr

Score
10/10
darkcometguest16evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

192.168.2.196:1604

Mutex

DC_MUTEX-1CRTNX9

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    gh7aHBKiofzL

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      5ef891b82e3bf3810d99ac3535d070c3b4615adfcac5d158a3b5b8ea369d9190

    • Size

      658KB

    • MD5

      f7bf4b5a76924169cc5bf45cf23902b9

    • SHA1

      3cbcd664a2b51eba71c9efe113e15515e9c900c1

    • SHA256

      5ef891b82e3bf3810d99ac3535d070c3b4615adfcac5d158a3b5b8ea369d9190

    • SHA512

      cdedf956f723bd20f723cb9892d684af18fef9a58eeb67939b04fdd96e18c216adef58a7ab22ab39a6b77d182eb8fdd1e63b936d980d3c5aa3e296661a88a222

    • SSDEEP

      12288:C9HMeUmcufrvA3kb445UEJ2jsWiD4EvFuu4cNgZhCiZKD/XdyFQ:uiBIGkbxqEcjsWiDxguehC2Sr

    Score
    10/10
    darkcometguest16evasionpersistencerattrojan

    • 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.

    • 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