Overview

overview

10

Static

static

10

4d254669a3...18.exe

windows7-x64

10

4d254669a3...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-05-2024 21:41

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General

  • Target

    4d254669a3288a023310caae738470c8_JaffaCakes118.exe

  • Size

    252KB

  • MD5

    4d254669a3288a023310caae738470c8

  • SHA1

    5ed0204f0ee83c1129119de8538c28131cb11d4c

  • SHA256

    2e7e6e2f4dfb425726c2c3a9712e3b4a37ff986181abc29c22d638bbd7b2a6fb

  • SHA512

    c285948dd5148de045e695903f36fc4ca894ca4dfedb1d49ee322c8acc90729238b69fb5b4f08124bda7bf709dd4f1fc4d2390aff7ddab6193ec4ec87cfcfaf6

  • SSDEEP

    6144:HcNYk1yuwEDBum3qYWnl0pd0EX3Zq2b6wfIDYm0PHQ:HcWkbgTYWnYnt/IDYhP

Score
10/10
darkcometallevasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

ALL

C2

188.0.213.201:1604

Mutex

DC_MUTEX-Z7ZKSB2

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    bEF6Ca2SpQqE

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

    trojanratdarkcomet
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Modifies security service 2 TTPs 1 IoCs
    evasion
  • Windows security bypass 2 TTPs 2 IoCs
    evasiontrojan
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • UPX packed file 8 IoCs

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

    upx
  • Windows security modification 2 TTPs 2 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 3 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\4d254669a3288a023310caae738470c8_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\4d254669a3288a023310caae738470c8_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Adds Run key to start application
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4600
    • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      2⤵
      • Modifies security service
      • Windows security bypass
      • Executes dropped EXE
      • Windows security modification
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • System policy modification
      PID:4080

Network

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

Create or Modify System Process

1
T1543

Windows Service

1
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

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Modify Registry

6
T1112

Impair Defenses

2
T1562

Disable or Modify Tools

2
T1562.001

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    Filesize

    252KB

    MD5

    4d254669a3288a023310caae738470c8

    SHA1

    5ed0204f0ee83c1129119de8538c28131cb11d4c

    SHA256

    2e7e6e2f4dfb425726c2c3a9712e3b4a37ff986181abc29c22d638bbd7b2a6fb

    SHA512

    c285948dd5148de045e695903f36fc4ca894ca4dfedb1d49ee322c8acc90729238b69fb5b4f08124bda7bf709dd4f1fc4d2390aff7ddab6193ec4ec87cfcfaf6

    Download Submit
  • memory/4080-61-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

    Download
  • memory/4080-63-0x00000000023C0000-0x00000000023C1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/4080-65-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

    Download
  • memory/4080-67-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

    Download
  • memory/4080-69-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

    Download
  • memory/4080-77-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

    Download
  • memory/4600-0-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

    Download
  • memory/4600-1-0x0000000000C40000-0x0000000000C41000-memory.dmp
    Filesize

    4KB

    Download
  • memory/4600-64-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

    Download