Analysis

  • max time kernel
    298s
  • max time network
    275s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240709-en
  • resource tags

    arch:x64arch:x86image:win11-20240709-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    13-07-2024 23:00

General

  • Target

    remcos_a.exe

  • Size

    211KB

  • MD5

    f98650ac5642a0ff3241180f700b8c1d

  • SHA1

    82a8c7aff9397d29f6a17865e2c5768aa6052b18

  • SHA256

    007355e4de840ebcec99df8316cc55de0fdd4c5bf83d758991f75b7e88ee875c

  • SHA512

    1cf506c673e43796fb54e224fec1f99ca055579de0ccce760c21ca43d0c562be0f613aaaeee68cea63110d38ffb32fe83ed415670a2ed441f4c0f309eaa3ec49

  • SSDEEP

    3072:3Snzw5FmY9/qcFO3IjfDFHhLPwyYwyRh9yCfY/EhDLxDNO575vAZQWvvRT06QwtY:+Q9ScNbpdY7Rh07/EhxDNOMZLRVF

Score
10/10

Malware Config

Extracted

Family

remcos

Version

5.1.0 Light

Botnet

Oops

C2

192.168.1.94:2404

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-OH6KPD

  • 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.

  • UPX packed file 10 IoCs

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

  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\remcos_a.exe
    "C:\Users\Admin\AppData\Local\Temp\remcos_a.exe"
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2028

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2028-0-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/2028-1-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/2028-2-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/2028-3-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/2028-4-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/2028-5-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/2028-6-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/2028-7-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/2028-8-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/2028-9-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB