Overview

overview

10

Static

static

10

b6e8f0a74f...08.exe

windows7-x64

10

b6e8f0a74f...08.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    b6e8f0a74f60902d4704b8ffc1809eef7d8a6b84b3115567d279ce05d2b94408

  • Size

    28.3MB

  • Sample

    221017-3n1cvadhcq

  • MD5

    a8c3d088e1c5ca58a0f31a08138fac05

  • SHA1

    efc36b45cf34404dcab19e2e4d4d7073432ff546

  • SHA256

    b6e8f0a74f60902d4704b8ffc1809eef7d8a6b84b3115567d279ce05d2b94408

  • SHA512

    e722588f9bdf7a3319b67c09316c10f8368d99f414194cfa914fefd7fbc628dd3500fd1d86169f216baf1840a4cc52b759324a82cd00f4d052a20f0fe60fc4d1

  • SSDEEP

    786432:Y5NgWSIq8kjHIVkNXqp5jIqsL9wMkuhVGxxGM+LePAREz+UNKf:Yvp9GHIVkNap5jFC+Mkuh+GJLexTm

Score
10/10
darkcometsazanevasionpersistencerattrojanvmprotect

Malware Config

Extracted

Family

darkcomet

Botnet

Sazan

C2

46.1.103.13:1604

Mutex

DC_MUTEX-78WFCKJ

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    9znNAlkh1dw0

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      b6e8f0a74f60902d4704b8ffc1809eef7d8a6b84b3115567d279ce05d2b94408

    • Size

      28.3MB

    • MD5

      a8c3d088e1c5ca58a0f31a08138fac05

    • SHA1

      efc36b45cf34404dcab19e2e4d4d7073432ff546

    • SHA256

      b6e8f0a74f60902d4704b8ffc1809eef7d8a6b84b3115567d279ce05d2b94408

    • SHA512

      e722588f9bdf7a3319b67c09316c10f8368d99f414194cfa914fefd7fbc628dd3500fd1d86169f216baf1840a4cc52b759324a82cd00f4d052a20f0fe60fc4d1

    • SSDEEP

      786432:Y5NgWSIq8kjHIVkNXqp5jIqsL9wMkuhVGxxGM+LePAREz+UNKf:Yvp9GHIVkNap5jFC+Mkuh+GJLexTm

    Score
    10/10
    darkcometsazanevasionpersistencerattrojanvmprotect

    • 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

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

      vmprotect

    • 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

    • Drops file in System32 directory

    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

6
T1112

Disabling Security Tools

2
T1089

Hidden Files and Directories

2
T1158

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks