Overview

overview

10

Static

static

d87d4d7a0d...98.exe

windows7-x64

10

d87d4d7a0d...98.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    d87d4d7a0dbb25f084859b8512e23f2ef94589655f2cd417c25009e9605c6998

  • Size

    820KB

  • Sample

    221203-eh6exace77

  • MD5

    7f0263ae88e07076889366970ce6147f

  • SHA1

    84a669be1ad036f481be5bca379b6d962523342e

  • SHA256

    d87d4d7a0dbb25f084859b8512e23f2ef94589655f2cd417c25009e9605c6998

  • SHA512

    a8b02c7cfc7296f1eae5415c4aa4f4c8b1c02ad30ea7047f9eb7e79c3c9d677b4ca5a98a87a7d48c343e5bacbb7f157af91296bcc26ec75c1600e1a95ce304e2

  • SSDEEP

    12288:9H0sGRDS9vqmZzw7JLjJoGmpuoJQQJBIwV1Kathio+:GkhqSzwRjporBB1Kj

Score
10/10
darkcometstrain10persistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Strain10

C2

mediaupdate.sytes.net:1604

Mutex

DC_MUTEX-4WRRCYC

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    QbtXBpuhirwF

  • install

    true

  • offline_keylogger

    false

  • persistence

    false

  • reg_key

    MediaUpdate

Targets

    • Target

      d87d4d7a0dbb25f084859b8512e23f2ef94589655f2cd417c25009e9605c6998

    • Size

      820KB

    • MD5

      7f0263ae88e07076889366970ce6147f

    • SHA1

      84a669be1ad036f481be5bca379b6d962523342e

    • SHA256

      d87d4d7a0dbb25f084859b8512e23f2ef94589655f2cd417c25009e9605c6998

    • SHA512

      a8b02c7cfc7296f1eae5415c4aa4f4c8b1c02ad30ea7047f9eb7e79c3c9d677b4ca5a98a87a7d48c343e5bacbb7f157af91296bcc26ec75c1600e1a95ce304e2

    • SSDEEP

      12288:9H0sGRDS9vqmZzw7JLjJoGmpuoJQQJBIwV1Kathio+:GkhqSzwRjporBB1Kj

    Score
    10/10
    darkcometstrain10persistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Checks computer location settings

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

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

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

Tasks