Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-04-2024 17:55

General

  • Target

    f1a4ef4fbce540f67061dbe829ceb5d3_JaffaCakes118.exe

  • Size

    1.3MB

  • MD5

    f1a4ef4fbce540f67061dbe829ceb5d3

  • SHA1

    44fcab47b0ccc49ff0ede26322abcf977ab9e204

  • SHA256

    d338f6946cd36d7d216945bf63e07ed0cda1983a2296b6f4f1a8b4e9a892346a

  • SHA512

    597c2202d8edd7d33a97497ad4ae90e5419d6cc96a99849cc153dd203be711d46ffe251cd333ea13434dc69f548fe61b11b3219c036ba45e148d45abe1e3a488

  • SSDEEP

    24576:aWOUJmUty0V17eIKZh7UgwcEU0JYxi4WMq:aWlJmCvhiw1HYxi9Mq

Malware Config

Extracted

Family

remcos

Version

3.3.0 Pro

Botnet

RemoteHost

C2

wealthlyblessed.ddns.net:39200

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-83QLZO

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

    notepad;solitaire;

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Obfuscated with Agile.Net obfuscator 2 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f1a4ef4fbce540f67061dbe829ceb5d3_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f1a4ef4fbce540f67061dbe829ceb5d3_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4872
    • C:\Users\Admin\AppData\Local\Temp\f1a4ef4fbce540f67061dbe829ceb5d3_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\f1a4ef4fbce540f67061dbe829ceb5d3_JaffaCakes118.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:4148

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\remcos\logs.dat

    Filesize

    148B

    MD5

    66062e00f7ffb74d10b3d2a84f927440

    SHA1

    54e5098aeebf8b83fa8c995813a87e5746473827

    SHA256

    ceffb8888b728269178211077567b1312c8a0f8a98ed0852da1a442a28eebeb3

    SHA512

    2305f242d52231b9567befe4bac9b959f2017fbea09b1b316a0f270a10784a2b2da71f93e65e6eb44a7478266dac7fa75b6a8ce8406193496fa2b65f9d72163a

  • memory/4148-13-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/4148-26-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/4148-21-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/4148-20-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/4148-18-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/4148-16-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/4148-15-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/4872-10-0x0000000005540000-0x0000000005550000-memory.dmp

    Filesize

    64KB

  • memory/4872-17-0x0000000074E20000-0x00000000755D0000-memory.dmp

    Filesize

    7.7MB

  • memory/4872-0-0x0000000000A70000-0x0000000000BB8000-memory.dmp

    Filesize

    1.3MB

  • memory/4872-11-0x0000000007AB0000-0x0000000007AC4000-memory.dmp

    Filesize

    80KB

  • memory/4872-12-0x000000000A0E0000-0x000000000A0E6000-memory.dmp

    Filesize

    24KB

  • memory/4872-8-0x0000000006F30000-0x0000000006F96000-memory.dmp

    Filesize

    408KB

  • memory/4872-7-0x0000000006E80000-0x0000000006EA8000-memory.dmp

    Filesize

    160KB

  • memory/4872-9-0x0000000006EF0000-0x0000000006F12000-memory.dmp

    Filesize

    136KB

  • memory/4872-6-0x0000000005540000-0x0000000005550000-memory.dmp

    Filesize

    64KB

  • memory/4872-5-0x0000000005740000-0x0000000005A94000-memory.dmp

    Filesize

    3.3MB

  • memory/4872-4-0x00000000056A0000-0x000000000573C000-memory.dmp

    Filesize

    624KB

  • memory/4872-3-0x0000000005560000-0x00000000055F2000-memory.dmp

    Filesize

    584KB

  • memory/4872-2-0x0000000005B10000-0x00000000060B4000-memory.dmp

    Filesize

    5.6MB

  • memory/4872-1-0x0000000074E20000-0x00000000755D0000-memory.dmp

    Filesize

    7.7MB