Overview

overview

10

Static

static

3

JaffaCakes...31.exe

windows7-x64

10

JaffaCakes...31.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    JaffaCakes118_9a562bd7d17c7d6d03ab184743c4f931

  • Size

    6.5MB

  • Sample

    250117-3snvlswqdz

  • MD5

    9a562bd7d17c7d6d03ab184743c4f931

  • SHA1

    9ca8540864223697483a0a35d6a36090aa6ef3e1

  • SHA256

    764641bdf9ccf9882c420a154096938fd6d24058e59ccfaf66c9408d16e7872b

  • SHA512

    d09dd1e68fbd656a19fd4f9088b1e7fbe78b3299f37bb81d93bb13744b99a0d24612788412d0706b081b805efe1d0fc8589b01582ad06007b27562ee6bd3ab83

  • SSDEEP

    49152:1jSv/ee5IcdYh5jlGCYtlPqL03jYsnpKngBdPnh2BpwqJ4151UdXEaoMMSxCDwUL:

Score
10/10
darkcometdiscoveryevasionpersistencerattrojanupx

Malware Config

Targets

    • Target

      JaffaCakes118_9a562bd7d17c7d6d03ab184743c4f931

    • Size

      6.5MB

    • MD5

      9a562bd7d17c7d6d03ab184743c4f931

    • SHA1

      9ca8540864223697483a0a35d6a36090aa6ef3e1

    • SHA256

      764641bdf9ccf9882c420a154096938fd6d24058e59ccfaf66c9408d16e7872b

    • SHA512

      d09dd1e68fbd656a19fd4f9088b1e7fbe78b3299f37bb81d93bb13744b99a0d24612788412d0706b081b805efe1d0fc8589b01582ad06007b27562ee6bd3ab83

    • SSDEEP

      49152:1jSv/ee5IcdYh5jlGCYtlPqL03jYsnpKngBdPnh2BpwqJ4151UdXEaoMMSxCDwUL:

    Score
    10/10
    darkcometdiscoveryevasionpersistencerattrojanupx

    • 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

    • Windows security bypass

      evasiontrojan

    • Adds policy Run key to start application

      persistence

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

      persistence

    • 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

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

4
T1547

Active Setup

1
T1547.014

Registry Run Keys / Startup Folder

2
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

4
T1547

Active Setup

1
T1547.014

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Impair Defenses

2
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

1
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