Overview

overview

10

Static

static

5

PCS.exe

windows7_x64

10

PCS.exe

windows10_x64

10

Sharing

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General

  • Target

    PCS.exe

  • Size

    11.1MB

  • Sample

    210811-czbh5lq7sj

  • MD5

    96e9564254f0acc6aa656cb56ab0e94d

  • SHA1

    b0d63f3ce6bb82c649cbc7a17df774acbf23477d

  • SHA256

    1a722652518e589be34613b12d419efee2235ff0b0a37556fbb9cda5eb27b1d2

  • SHA512

    69d05b841c558dfe8f8ad8527e8f9450e68becf50bd0d89e372d8cc8b61770bad6d3a94b22ca858829a613d8c563519d0cc92d13f918274ecacb46799e1103d8

Score
10/10
darkcometguest16evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

onlinebonjour1pt.ddns.net:1605

Mutex

DC_MUTEX-XJRH105

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    TeN3mNbzDY1b

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    Microdapt

Targets

    • Target

      PCS.exe

    • Size

      11.1MB

    • MD5

      96e9564254f0acc6aa656cb56ab0e94d

    • SHA1

      b0d63f3ce6bb82c649cbc7a17df774acbf23477d

    • SHA256

      1a722652518e589be34613b12d419efee2235ff0b0a37556fbb9cda5eb27b1d2

    • SHA512

      69d05b841c558dfe8f8ad8527e8f9450e68becf50bd0d89e372d8cc8b61770bad6d3a94b22ca858829a613d8c563519d0cc92d13f918274ecacb46799e1103d8

    Score
    10/10
    darkcometguest16evasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies security service

      evasion

    • Windows security bypass

      evasiontrojan

    • 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

    • Suspicious use of SetThreadContext

    • autoit_exe

      AutoIT scripts compiled to PE executables.

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

1
T1031

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

5
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