Overview

overview

10

Static

static

3

JaffaCakes...58.exe

windows7-x64

10

JaffaCakes...58.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    JaffaCakes118_f16ef2c3f71f856098faf2a12ebf7d58

  • Size

    1.6MB

  • Sample

    250212-s52xwsxqhs

  • MD5

    f16ef2c3f71f856098faf2a12ebf7d58

  • SHA1

    5f4a0ff4c8719c7e9cba8dc9df60c5fb3c301879

  • SHA256

    1243f5ee305134d58fbc631d13721edd2a3f4887a6f6153a207dbfb357c1151d

  • SHA512

    b7115cd3326612af0e43e487d2cf75d055cc8392c925b18d1a6784077f7d5a5afaeb43cbc62296cd46c78c1334e65416a121db101635e096ea92eb17d02b94bf

  • SSDEEP

    24576:2IGD/tkRGc/bJ3q4rT4MRdMOkWCn5SHH6QC7djRaxFcPxX:ElkRGc964v4MR3Q5jIxOP

Score
10/10
darkcometid-01defense_evasiondiscoverypersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Attributes
  • gencode

  • install

    false

  • offline_keylogger

    false

  • persistence

    false

rc4.plain

Extracted

Family

darkcomet

Botnet

ID-01

C2

213.190.57.17:4411

Mutex

DC_MUTEX-H8BKTPK

Attributes
  • InstallPath

    Windupdt\winupdate.exe

  • gencode

    b�VUJ6rG.XLP

  • install

    true

  • offline_keylogger

    true

  • password

    wtf?end

  • persistence

    true

  • reg_key

    winupdater

rc4.plain

Targets

    • Target

      JaffaCakes118_f16ef2c3f71f856098faf2a12ebf7d58

    • Size

      1.6MB

    • MD5

      f16ef2c3f71f856098faf2a12ebf7d58

    • SHA1

      5f4a0ff4c8719c7e9cba8dc9df60c5fb3c301879

    • SHA256

      1243f5ee305134d58fbc631d13721edd2a3f4887a6f6153a207dbfb357c1151d

    • SHA512

      b7115cd3326612af0e43e487d2cf75d055cc8392c925b18d1a6784077f7d5a5afaeb43cbc62296cd46c78c1334e65416a121db101635e096ea92eb17d02b94bf

    • SSDEEP

      24576:2IGD/tkRGc/bJ3q4rT4MRdMOkWCn5SHH6QC7djRaxFcPxX:ElkRGc964v4MR3Q5jIxOP

    Score
    10/10
    darkcometid-01defense_evasiondiscoverypersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Darkcomet family

      darkcomet

    • Modifies WinLogon for persistence

      persistence

    • Downloads MZ/PE file

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      defense_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

    • Checks whether UAC is enabled

      defense_evasiontrojan

    • Drops desktop.ini file(s)

    • Drops file in System32 directory

    • 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

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

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Modify Registry

3
T1112

Credential Access

Discovery

Browser Information Discovery

1
T1217

Query Registry

2
T1012

Remote System Discovery

1
T1018

System Information Discovery

4
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks