Overview

overview

10

Static

static

10

05c46fa4ec...18.exe

windows7-x64

10

05c46fa4ec...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    141s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-06-2024 11:56

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General

  • Target

    05c46fa4ecf6cf047b9c6cefbcd62971_JaffaCakes118.exe

  • Size

    900KB

  • MD5

    05c46fa4ecf6cf047b9c6cefbcd62971

  • SHA1

    14dd9429d171c5933c5f60354c2dfa6fce39b39b

  • SHA256

    9882ea1620d446a7b105187db22d23143db52f1fa3014686514d2f1312b8dff2

  • SHA512

    7b6594695361c24201590bed1cd8f51cd2e137aeebaa914b21b93beb81b8d55bac2878386de9e35d0d932054312b64be64839d1fcf22b3ac753c36eb0d23f7ba

  • SSDEEP

    12288:aaAchpWsuVTv7ItY8XljyypHP7cOLBev03hlULsmWZ++09ZcKDVsd/jt:7AEENIq8XwyVPQclDq/+Wnps1

Score
10/10
darkcometpersistencerattrojan

Malware Config

Signatures

  • Darkcomet

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

    trojanratdarkcomet
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Drops file in System32 directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 4 IoCs

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

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\05c46fa4ecf6cf047b9c6cefbcd62971_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\05c46fa4ecf6cf047b9c6cefbcd62971_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks BIOS information in registry
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in System32 directory
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4768
    • C:\WINDOWS\SysWOW64\Explorer.exe
      "C:\WINDOWS\system32\Explorer.exe"
      2⤵
      • Executes dropped EXE
      • Modifies registry class
      PID:1436

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

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

4
T1012

System Information Discovery

5
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

  • C:\Windows\SysWOW64\explorer.exe
    Filesize

    4.2MB

    MD5

    0155e85852fde62a441cbaf485e023be

    SHA1

    59482d4b1c0f061426ef71bff8506230faa00701

    SHA256

    e0689419d3d7879a229ecf3e74639e4e9ba0669ed4574f47b108097593fc9fbc

    SHA512

    f1a43adb7b0203dc5ad4613da9645070c4da0d15d8788b50644cb80420d4a38151488aa3888da39a6cb17ef6d3f5ebc5fe08ac948dca1fd0c852dceecd3bafff

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  • memory/4768-0-0x0000000000400000-0x00000000004E1000-memory.dmp
    Filesize

    900KB

    Download
  • memory/4768-1-0x00000000022E0000-0x00000000022E1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/4768-4-0x0000000000400000-0x00000000004E1000-memory.dmp
    Filesize

    900KB

    Download