Overview

overview

10

Static

static

10

a6244295c0...a4.exe

windows7-x64

10

a6244295c0...a4.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    a6244295c0b7120af0f92ab683776621625705086637e3d01b44106e5e4126a4

  • Size

    256KB

  • Sample

    240412-ajv84she85

  • MD5

    ec9c14011f7eba348f391c294bdb3367

  • SHA1

    e61a15f8f2accd5a6c9acbf11886b2782d460f52

  • SHA256

    a6244295c0b7120af0f92ab683776621625705086637e3d01b44106e5e4126a4

  • SHA512

    13037bd298f5d093373453b5913f724a91adbab158012cb2f6055c9dd8616bd3fc61be715fe30bc6828215cfd87d3a1d4a12d39ae0503a12588dec2e55ec50c1

  • SSDEEP

    6144:bcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37sEAU:bcW7KEZlPzCy37s/

Score
10/10
darkcometsazanpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Sazan

C2

0.tcp.eu.ngrok.io:19165:19165

Mutex

DC_MUTEX-AZWBJ2E

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    Py8v2wbhf6PU

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      a6244295c0b7120af0f92ab683776621625705086637e3d01b44106e5e4126a4

    • Size

      256KB

    • MD5

      ec9c14011f7eba348f391c294bdb3367

    • SHA1

      e61a15f8f2accd5a6c9acbf11886b2782d460f52

    • SHA256

      a6244295c0b7120af0f92ab683776621625705086637e3d01b44106e5e4126a4

    • SHA512

      13037bd298f5d093373453b5913f724a91adbab158012cb2f6055c9dd8616bd3fc61be715fe30bc6828215cfd87d3a1d4a12d39ae0503a12588dec2e55ec50c1

    • SSDEEP

      6144:bcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37sEAU:bcW7KEZlPzCy37s/

    Score
    10/10
    darkcometsazanpersistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • UPX dump on OEP (original entry point)

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

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

      upx

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

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

Web Service

1
T1102

Impact

Resource Development

Reconnaissance

Tasks