Overview

overview

10

Static

static

3

695b90b4aa...18.exe

windows7-x64

10

695b90b4aa...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    695b90b4aa3f979981153fed0d682528_JaffaCakes118

  • Size

    620KB

  • Sample

    240523-cbmm4shd91

  • MD5

    695b90b4aa3f979981153fed0d682528

  • SHA1

    773ab8e2be7cec065f40dfe57c3964878349399e

  • SHA256

    e668dd735809a2a08efeda2c037952ebd63b53a82648a9a059b06ba156e914a3

  • SHA512

    e9c7a055f1f2f1a18b354b32fc007b0dc9e28b9212e9fb3667d3fc148167da7d664f611c08ad167c4c79d15c6e447a8ff26ea9833804358c4b26342ebae7980e

  • SSDEEP

    6144:hVX/Wjw41C4GVx7sADJ2gB701zM4+TeoA+PK5yAyi2/cwRWl2qtmSSSA58FNjmeQ:WRCxx4EJ2gB4bQegx/cSUlTBvxJx9l

Score
10/10
darkcometevasionpersistencerattrojanupx

Malware Config

Targets

    • Target

      695b90b4aa3f979981153fed0d682528_JaffaCakes118

    • Size

      620KB

    • MD5

      695b90b4aa3f979981153fed0d682528

    • SHA1

      773ab8e2be7cec065f40dfe57c3964878349399e

    • SHA256

      e668dd735809a2a08efeda2c037952ebd63b53a82648a9a059b06ba156e914a3

    • SHA512

      e9c7a055f1f2f1a18b354b32fc007b0dc9e28b9212e9fb3667d3fc148167da7d664f611c08ad167c4c79d15c6e447a8ff26ea9833804358c4b26342ebae7980e

    • SSDEEP

      6144:hVX/Wjw41C4GVx7sADJ2gB701zM4+TeoA+PK5yAyi2/cwRWl2qtmSSSA58FNjmeQ:WRCxx4EJ2gB4bQegx/cSUlTBvxJx9l

    Score
    10/10
    darkcometevasionpersistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • 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

    • UPX packed file

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

      upx

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    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

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

Modify Registry

2
T1112

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks