Overview

overview

10

Static

static

10

512665db21...18.exe

windows7-x64

10

512665db21...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    512665db21883175c7a9af2fbb38a839_JaffaCakes118

  • Size

    283KB

  • Sample

    240517-ybxc7sfb9z

  • MD5

    512665db21883175c7a9af2fbb38a839

  • SHA1

    997ebd10c77def607dfc4a6510578f2d9a5904ce

  • SHA256

    f4135f6b427e6836503797ff2f441a4f7ad343ae264396b4a4cd6bf7b295189c

  • SHA512

    7095b0705a7c6038965e96b96769af8cbe4f065c3146d288e1dd0c3d240dbac827e0192fc49513666316e10af73f73174424eda006bc70ac99122192e0852971

  • SSDEEP

    6144:8cNYk1yuwEDBum3qYWnl0pd0EX3Zq2b6wfIDYm0PlR:8cWkbgTYWnYnt/IDYhPn

Score
10/10
darkcometguest16persistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:888

Mutex

DC_MUTEX-WHLS1HP

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    gGRRYlfxUJpz

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      512665db21883175c7a9af2fbb38a839_JaffaCakes118

    • Size

      283KB

    • MD5

      512665db21883175c7a9af2fbb38a839

    • SHA1

      997ebd10c77def607dfc4a6510578f2d9a5904ce

    • SHA256

      f4135f6b427e6836503797ff2f441a4f7ad343ae264396b4a4cd6bf7b295189c

    • SHA512

      7095b0705a7c6038965e96b96769af8cbe4f065c3146d288e1dd0c3d240dbac827e0192fc49513666316e10af73f73174424eda006bc70ac99122192e0852971

    • SSDEEP

      6144:8cNYk1yuwEDBum3qYWnl0pd0EX3Zq2b6wfIDYm0PlR:8cWkbgTYWnYnt/IDYhPn

    Score
    10/10
    darkcometguest16persistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Drops file in Drivers directory

    • 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
    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

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks