Overview

overview

10

Static

static

10

242f313590...21.exe

windows7-x64

10

242f313590...21.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    242f31359003b155e7b63772a3178e08ee4ed985f9997bfceb736b9b9ec15e21

  • Size

    1.3MB

  • Sample

    221001-3mxwbsddfq

  • MD5

    65335c3362c2a5af1662e5d596e812c0

  • SHA1

    49d54432fc1691d0f6b477e7c4ccc4162ea6bd41

  • SHA256

    242f31359003b155e7b63772a3178e08ee4ed985f9997bfceb736b9b9ec15e21

  • SHA512

    043828beaffc5e73707021320877e65dc26b4d7957702f855241ed777087dd8c608af71f14a5d4c4d5ff3229c42a4ab831bc2310c5f6bf6a7452d697783bd7f4

  • SSDEEP

    24576:xQtAJH+PECTpJzNYDoKVf7LtxBezzJ34GAx+0QRWoJEfg0oChGdJQbjPbNW5tYeH:+SH+PECTpJzNYDnVjLtxclmJQRV2o3Mj

Score
10/10
darkcometguest16evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

herorivals.ddns.net:1604

herorivals.ddns.net:1605
Mutex

DC_MUTEX-F54S21D

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    jZMx1931CGta

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    Microsoft

Targets

    • Target

      242f31359003b155e7b63772a3178e08ee4ed985f9997bfceb736b9b9ec15e21

    • Size

      1.3MB

    • MD5

      65335c3362c2a5af1662e5d596e812c0

    • SHA1

      49d54432fc1691d0f6b477e7c4ccc4162ea6bd41

    • SHA256

      242f31359003b155e7b63772a3178e08ee4ed985f9997bfceb736b9b9ec15e21

    • SHA512

      043828beaffc5e73707021320877e65dc26b4d7957702f855241ed777087dd8c608af71f14a5d4c4d5ff3229c42a4ab831bc2310c5f6bf6a7452d697783bd7f4

    • SSDEEP

      24576:xQtAJH+PECTpJzNYDoKVf7LtxBezzJ34GAx+0QRWoJEfg0oChGdJQbjPbNW5tYeH:+SH+PECTpJzNYDnVjLtxclmJQRV2o3Mj

    Score
    10/10
    darkcometguest16evasionpersistencerattrojan

    • 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

    • 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

    • 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

Modify Existing Service

2
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

1
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks