Overview

overview

10

Static

static

10

1.exe

windows7_x64

10

1.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    1.bin

  • Size

    661KB

  • Sample

    220225-gy1kpsfbc9

  • MD5

    f0e7f5c44d69cb03d87b634c3d695c7e

  • SHA1

    f46ef1eb3ba47a62ebf645238aad3af66ebed012

  • SHA256

    1f2ead28ecdc21f65c33e8f929466d39cd618c25b1ff488eaadd27302022bda5

  • SHA512

    07f66d65f728887b755137c07fd1f3941c92f6fb7dd10d3ea59e30031ac2e96cd77cfc0c364a51441047b87102b9f81ec766698ec776dcffa141d6dcdf0560fc

Score
10/10
darkcometsazanevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Sazan

C2

akordion.duckdns.org:1604

Mutex

DC_MUTEX-CADHQZA

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    344KSen6NjLL

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      1.bin

    • Size

      661KB

    • MD5

      f0e7f5c44d69cb03d87b634c3d695c7e

    • SHA1

      f46ef1eb3ba47a62ebf645238aad3af66ebed012

    • SHA256

      1f2ead28ecdc21f65c33e8f929466d39cd618c25b1ff488eaadd27302022bda5

    • SHA512

      07f66d65f728887b755137c07fd1f3941c92f6fb7dd10d3ea59e30031ac2e96cd77cfc0c364a51441047b87102b9f81ec766698ec776dcffa141d6dcdf0560fc

    Score
    10/10
    darkcometsazanevasionpersistencerattrojan

    • 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
    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