Overview

overview

10

Static

static

3

7d28b6a397...18.exe

windows7-x64

10

7d28b6a397...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    7d28b6a3977fb89528359197ab7a7e6d_JaffaCakes118

  • Size

    717KB

  • Sample

    241029-3rvxjasdpq

  • MD5

    7d28b6a3977fb89528359197ab7a7e6d

  • SHA1

    092a58676dec908e7960e3504cf7f5adb873b45b

  • SHA256

    52062426a82e77857f1c0785c412d5b2453a0cb0a7cfc1c0f33748762d469aa6

  • SHA512

    4b866fb01308e810ef9aa04d7c3131ac9c25946a387f4b7744582a27003312eb4fa5828028a0d45759ef2509f1c9d2a4c14affca6bf2dad29e1021e0a0bcd70b

  • SSDEEP

    12288:29zEGJrT9YN4VAbPZWeOF8RHVJiN5+Aho0nLX/XH249uS:Z2TadBWPC7+IAho0nLXeAuS

Score
10/10
darkcometguest10discoveryevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest10

C2

smth1.zapto.org:1604

Mutex

DC_MUTEX-2CV8R3D

Attributes
  • InstallPath

    MSDCSC\msdcss.exe

  • gencode

    iUkSoqq15Y7a

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      7d28b6a3977fb89528359197ab7a7e6d_JaffaCakes118

    • Size

      717KB

    • MD5

      7d28b6a3977fb89528359197ab7a7e6d

    • SHA1

      092a58676dec908e7960e3504cf7f5adb873b45b

    • SHA256

      52062426a82e77857f1c0785c412d5b2453a0cb0a7cfc1c0f33748762d469aa6

    • SHA512

      4b866fb01308e810ef9aa04d7c3131ac9c25946a387f4b7744582a27003312eb4fa5828028a0d45759ef2509f1c9d2a4c14affca6bf2dad29e1021e0a0bcd70b

    • SSDEEP

      12288:29zEGJrT9YN4VAbPZWeOF8RHVJiN5+Aho0nLX/XH249uS:Z2TadBWPC7+IAho0nLXeAuS

    Score
    10/10
    darkcometguest10discoveryevasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Darkcomet family

      darkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • Drops file in Drivers directory

    • 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

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

3
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks