Overview

overview

10

Static

static

10

d8aeefe498...f2.exe

windows7_x64

10

d8aeefe498...f2.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    d8aeefe49869abecc7719bedc0eed1e0630a1c4d9208db72a06be52c9e6343f2

  • Size

    658KB

  • Sample

    220520-2kp72afec2

  • MD5

    4d693fde464e00a60c0c87d8a8c4e27c

  • SHA1

    9efd17718385a0445d40ce1c3de86b9bd18a33a0

  • SHA256

    d8aeefe49869abecc7719bedc0eed1e0630a1c4d9208db72a06be52c9e6343f2

  • SHA512

    05e358afa6d9419a501125cc57fe8976cddf1b358a7a30d8158d08b439379e00d068e8c8dcde6e65de98a19bedb3ae6521ce412835c7a64348438f05042eaab4

Score
10/10
darkcometguest16evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

sasha8787.hopto.org:1604

Mutex

DC_MUTEX-0E94YVE

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    jc8H9yZoi6Sf

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      d8aeefe49869abecc7719bedc0eed1e0630a1c4d9208db72a06be52c9e6343f2

    • Size

      658KB

    • MD5

      4d693fde464e00a60c0c87d8a8c4e27c

    • SHA1

      9efd17718385a0445d40ce1c3de86b9bd18a33a0

    • SHA256

      d8aeefe49869abecc7719bedc0eed1e0630a1c4d9208db72a06be52c9e6343f2

    • SHA512

      05e358afa6d9419a501125cc57fe8976cddf1b358a7a30d8158d08b439379e00d068e8c8dcde6e65de98a19bedb3ae6521ce412835c7a64348438f05042eaab4

    Score
    10/10
    darkcometguest16evasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • Modifies security service

      evasion

    • Windows security bypass

      evasiontrojan

    • Disables RegEdit via registry modification

      evasion

    • 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
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

2
T1031

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

7
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