Overview

overview

10

Static

static

3

JaffaCakes...dd.exe

windows7-x64

10

JaffaCakes...dd.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    JaffaCakes118_0fda07a5e12bc40737255ba3f4379cdd

  • Size

    693KB

  • Sample

    250221-dmvnjatlt7

  • MD5

    0fda07a5e12bc40737255ba3f4379cdd

  • SHA1

    177c003d406218129dd9e6c93286e1b5db31dad1

  • SHA256

    9218a75e1f0d8780c12a2c5061068aa8f2c0a865d62ea7da21bb91518d2cce39

  • SHA512

    aff66eb37ca1f36b93136fb59c517410c7d23addae86d2c2d09be3bf1e6856d3a153854c7a757fef879be023ac63b669abf4156ef3bce65fc3ebb8c871e8b307

  • SSDEEP

    12288:aZeEFQ4KHeyDuP+xQV1K0eNnG+8tAVAO2BQgeMCDvRdPQGUDBo/:aXzKLF01teNIAZeQgeM4FQGgy

Score
10/10
darkcometrsdefense_evasiondiscoverypersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Attributes
  • gencode

  • install

    false

  • offline_keylogger

    false

  • persistence

    false

rc4.plain

Extracted

Family

darkcomet

Botnet

Rs

C2

leetrsps.zapto.org:82

Mutex

DC_MUTEX-CCF7AKB

Attributes
  • InstallPath

    Windows Update\winupdate.exe

  • gencode

    h%c=94/%UYNd

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

rc4.plain

Targets

    • Target

      JaffaCakes118_0fda07a5e12bc40737255ba3f4379cdd

    • Size

      693KB

    • MD5

      0fda07a5e12bc40737255ba3f4379cdd

    • SHA1

      177c003d406218129dd9e6c93286e1b5db31dad1

    • SHA256

      9218a75e1f0d8780c12a2c5061068aa8f2c0a865d62ea7da21bb91518d2cce39

    • SHA512

      aff66eb37ca1f36b93136fb59c517410c7d23addae86d2c2d09be3bf1e6856d3a153854c7a757fef879be023ac63b669abf4156ef3bce65fc3ebb8c871e8b307

    • SSDEEP

      12288:aZeEFQ4KHeyDuP+xQV1K0eNnG+8tAVAO2BQgeMCDvRdPQGUDBo/:aXzKLF01teNIAZeQgeM4FQGgy

    Score
    10/10
    darkcometrsdefense_evasiondiscoverypersistencerattrojan

    • 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

      defense_evasion

    • Modifies security service

      defense_evasion

    • Windows security bypass

      defense_evasiontrojan

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

      defense_evasiontrojan

    • 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

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

Impair Defenses

3
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

2
T1562.001

Modify Registry

7
T1112

Credential Access

Discovery

Query Registry

4
T1012

System Information Discovery

5
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks