Overview

overview

10

Static

static

10

ddd438b362...d7.exe

windows7-x64

10

ddd438b362...d7.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    ddd438b3624a3d8f500669f5f8da3d2688229e535065ffe661c5614f7685d3d7

  • Size

    757KB

  • Sample

    230130-e2t6zsaf4s

  • MD5

    191022f31c9f8d537d9ec88fd262bc50

  • SHA1

    de7c4e9263b16c64c47cae98818d2eb0fb34c548

  • SHA256

    ddd438b3624a3d8f500669f5f8da3d2688229e535065ffe661c5614f7685d3d7

  • SHA512

    58e855093be008e5b3113b02a27faf8395d01168b40a12b85438ed7fc2f19321f35695dfda63ef291b3aef63c76a45d7a4cdfa0a3b7c424a4c4a7dca5ee6397e

  • SSDEEP

    12288:99HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hX:XZ1xuVVjfFoynPaVBUR8f+kN10EB5

Score
10/10
darkcometsazanevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Sazan

C2

crayzlove.no-ip.org:1604

Mutex

DC_MUTEX-YLDY4TJ

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    nZmHWoAc1fhT

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      ddd438b3624a3d8f500669f5f8da3d2688229e535065ffe661c5614f7685d3d7

    • Size

      757KB

    • MD5

      191022f31c9f8d537d9ec88fd262bc50

    • SHA1

      de7c4e9263b16c64c47cae98818d2eb0fb34c548

    • SHA256

      ddd438b3624a3d8f500669f5f8da3d2688229e535065ffe661c5614f7685d3d7

    • SHA512

      58e855093be008e5b3113b02a27faf8395d01168b40a12b85438ed7fc2f19321f35695dfda63ef291b3aef63c76a45d7a4cdfa0a3b7c424a4c4a7dca5ee6397e

    • SSDEEP

      12288:99HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hX:XZ1xuVVjfFoynPaVBUR8f+kN10EB5

    Score
    10/10
    darkcometsazanevasionpersistencerattrojan

    • 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

    • Suspicious use of SetThreadContext

    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