Overview

overview

10

Static

static

3

1a6031959d...18.exe

windows7-x64

10

1a6031959d...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    1a6031959d62cc35e0c9d95a8eadfa38_JaffaCakes118

  • Size

    1.3MB

  • Sample

    240628-q76bzswbqj

  • MD5

    1a6031959d62cc35e0c9d95a8eadfa38

  • SHA1

    4d43f9240f1b5ecc103a71b67c094fe7fc4a3944

  • SHA256

    420aac924ab38220b5cab5fe6eb895a82efae97eab224b79881677c1bdf9dae0

  • SHA512

    23569a850a163b8d7b0b6b650491f0c065e7484d43c47c66e5b22caa0753b25f5e91ccc506a2c8219bf7ab6c253b9261d491c040bbb98e53198ac5a326f7e8f3

  • SSDEEP

    24576:FsnygoKvHFEd1C0CLO/mavED5e8Ni20VJ+LQxjSYcfjZTY:mygblogavMTNYVJ1IYcr2

Score
10/10
darkcometyahooevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

yahoo

C2

wootwootrs.no-ip.org:1604

Mutex

DC_MUTEX-N7S20QG

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    iUg418ipEAXJ

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    Windows Live Messenger

Targets

    • Target

      1a6031959d62cc35e0c9d95a8eadfa38_JaffaCakes118

    • Size

      1.3MB

    • MD5

      1a6031959d62cc35e0c9d95a8eadfa38

    • SHA1

      4d43f9240f1b5ecc103a71b67c094fe7fc4a3944

    • SHA256

      420aac924ab38220b5cab5fe6eb895a82efae97eab224b79881677c1bdf9dae0

    • SHA512

      23569a850a163b8d7b0b6b650491f0c065e7484d43c47c66e5b22caa0753b25f5e91ccc506a2c8219bf7ab6c253b9261d491c040bbb98e53198ac5a326f7e8f3

    • SSDEEP

      24576:FsnygoKvHFEd1C0CLO/mavED5e8Ni20VJ+LQxjSYcfjZTY:mygblogavMTNYVJ1IYcr2

    Score
    10/10
    darkcometyahooevasionpersistencerattrojan

    • 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

    • Disables RegEdit via registry modification

      evasion

    • Disables Task Manager via registry modification

      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

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    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

2
T1543

Windows Service

2
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

2
T1543

Windows Service

2
T1543.003

Defense Evasion

Modify Registry

7
T1112

Impair Defenses

3
T1562

Disable or Modify Tools

2
T1562.001

Disable or Modify System Firewall

1
T1562.004

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