Overview

overview

10

Static

static

10

f37c39d232...18.exe

windows7-x64

10

f37c39d232...18.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    f37c39d23241d810bf574afd63d1475a_JaffaCakes118

  • Size

    661KB

  • Sample

    240416-ph9gnsab69

  • MD5

    f37c39d23241d810bf574afd63d1475a

  • SHA1

    f9017197fc5726f345f0d2398d42dfbe5e61339d

  • SHA256

    3d3ddbe28d0b0b39a5c64a9cd062593f056a3c9a608073646dfc5e1dd55a7356

  • SHA512

    acf8047755df03a4924e25cda00a09050ed1227bf57353e924d01912108efa46d5b91b68ef27a80764332c88e1b08c8ff4568a4c25f0aff7b0f0dccfd047054c

  • SSDEEP

    12288:pXhpvNWw276S/DuoeFcfbmiJ99VPhYR5MTSHvLenELrWv1lZw4JuMkwh/:VnAw2WWeFcfbP9VPSPMTSPL/rWvzq4Jd

Score
10/10
darkcometguest16evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:1604

Mutex

DC_MUTEX-RQ9D7DQ

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    TdbyFJMD6RSA

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      f37c39d23241d810bf574afd63d1475a_JaffaCakes118

    • Size

      661KB

    • MD5

      f37c39d23241d810bf574afd63d1475a

    • SHA1

      f9017197fc5726f345f0d2398d42dfbe5e61339d

    • SHA256

      3d3ddbe28d0b0b39a5c64a9cd062593f056a3c9a608073646dfc5e1dd55a7356

    • SHA512

      acf8047755df03a4924e25cda00a09050ed1227bf57353e924d01912108efa46d5b91b68ef27a80764332c88e1b08c8ff4568a4c25f0aff7b0f0dccfd047054c

    • SSDEEP

      12288:pXhpvNWw276S/DuoeFcfbmiJ99VPhYR5MTSHvLenELrWv1lZw4JuMkwh/:VnAw2WWeFcfbP9VPSPMTSPL/rWvzq4Jd

    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

    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence
    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

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Modify Registry

3
T1112

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks