Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-09-2024 18:13

General

  • Target

    FR ELECTRONICA No 98765454657687988998675434576890.exe

  • Size

    4.0MB

  • MD5

    fd89f77c90e19775e90ec54a80d42f82

  • SHA1

    e8a968288f474033fe8e7cad75df15ae93afb72a

  • SHA256

    693ed4e7a217db9a61235de262cb848f8287a9e1985d8a399f5b2a1d2be0a790

  • SHA512

    97d8e9b536726919c751e324925429342d0fdcb9b86759f7a32cbc6927136a1205cb01fc0284ead72963ffb011587c6b03f72a0460e56716ba8b5854b9c05182

  • SSDEEP

    49152:JEA9P+bz2cHPcUb6HckXb4SOEMkBeH7nQckO6bAGx7jjTVm+u88nHq5HTpX3338W:d92bz2Eb689d7B6bAGx78EX333L13

Malware Config

Extracted

Family

remcos

Botnet

RUBI

C2

juanruizpu1405.con-ip.com:2405

Attributes
  • audio_folder

    MicRecords

  • 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

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-JAM8GR

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FR ELECTRONICA No 98765454657687988998675434576890.exe
    "C:\Users\Admin\AppData\Local\Temp\FR ELECTRONICA No 98765454657687988998675434576890.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1120
    • C:\Users\Admin\AppData\Local\Temp\FR ELECTRONICA No 98765454657687988998675434576890.exe
      "C:\Users\Admin\AppData\Local\Temp\FR ELECTRONICA No 98765454657687988998675434576890.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:1872

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    c2bf6623a2184d76118a62857da47443

    SHA1

    f013e009a29d98a6ecaca6c8730d00030388ecd9

    SHA256

    97b9071530e55549fa1d2d1c952d3f38045ba47a76508545290d4f74a915aa70

    SHA512

    887a4c364cc01fd39b73699a23181f1d0682f4e90537824f1b1786d1ee2fb052cca74159d4ee0a8941889f7c64845fe0e8d9ee409f8f0ebc7dfb019fc96defe9

  • memory/1120-0-0x0000000000400000-0x000000000080B000-memory.dmp

    Filesize

    4.0MB

  • memory/1120-2-0x000000000052E000-0x0000000000547000-memory.dmp

    Filesize

    100KB

  • memory/1120-1-0x0000000000400000-0x000000000080B000-memory.dmp

    Filesize

    4.0MB

  • memory/1120-7-0x0000000000400000-0x000000000080B000-memory.dmp

    Filesize

    4.0MB

  • memory/1120-6-0x0000000000400000-0x000000000080B000-memory.dmp

    Filesize

    4.0MB

  • memory/1120-12-0x0000000000400000-0x000000000080B000-memory.dmp

    Filesize

    4.0MB

  • memory/1120-10-0x0000000000400000-0x000000000080B000-memory.dmp

    Filesize

    4.0MB

  • memory/1120-21-0x000000000052E000-0x0000000000547000-memory.dmp

    Filesize

    100KB

  • memory/1120-8-0x0000000000400000-0x000000000080B000-memory.dmp

    Filesize

    4.0MB

  • memory/1120-3-0x0000000000400000-0x000000000080B000-memory.dmp

    Filesize

    4.0MB

  • memory/1872-19-0x0000000000400000-0x000000000080B000-memory.dmp

    Filesize

    4.0MB

  • memory/1872-34-0x0000000000810000-0x0000000000892000-memory.dmp

    Filesize

    520KB

  • memory/1872-15-0x0000000000810000-0x0000000000892000-memory.dmp

    Filesize

    520KB

  • memory/1872-14-0x0000000000810000-0x0000000000892000-memory.dmp

    Filesize

    520KB

  • memory/1872-9-0x0000000000810000-0x0000000000892000-memory.dmp

    Filesize

    520KB

  • memory/1872-22-0x0000000000810000-0x0000000000892000-memory.dmp

    Filesize

    520KB

  • memory/1872-27-0x0000000000810000-0x0000000000892000-memory.dmp

    Filesize

    520KB

  • memory/1872-28-0x0000000000810000-0x0000000000892000-memory.dmp

    Filesize

    520KB

  • memory/1872-13-0x0000000000810000-0x0000000000892000-memory.dmp

    Filesize

    520KB

  • memory/1872-18-0x0000000000810000-0x0000000000892000-memory.dmp

    Filesize

    520KB

  • memory/1872-35-0x0000000000810000-0x0000000000892000-memory.dmp

    Filesize

    520KB

  • memory/1872-40-0x0000000000810000-0x0000000000892000-memory.dmp

    Filesize

    520KB

  • memory/1872-41-0x0000000000810000-0x0000000000892000-memory.dmp

    Filesize

    520KB

  • memory/1872-46-0x0000000000810000-0x0000000000892000-memory.dmp

    Filesize

    520KB

  • memory/1872-48-0x0000000000810000-0x0000000000892000-memory.dmp

    Filesize

    520KB

  • memory/1872-53-0x0000000000810000-0x0000000000892000-memory.dmp

    Filesize

    520KB

  • memory/1872-54-0x0000000000810000-0x0000000000892000-memory.dmp

    Filesize

    520KB

  • memory/1872-59-0x0000000000810000-0x0000000000892000-memory.dmp

    Filesize

    520KB

  • memory/1872-60-0x0000000000810000-0x0000000000892000-memory.dmp

    Filesize

    520KB