Overview

overview

10

Static

static

10

remcos_agent.exe

windows10-2004-x64

10

remcos_agent.exe

windows10-ltsc 2021-x64

10

remcos_agent.exe

windows11-21h2-x64

10

remcos_agent.exe

windows7-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    94s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    05-12-2024 20:26

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General

  • Target

    remcos_agent.exe

  • Size

    29KB

  • MD5

    c6561f9b5a15621f3b6472465b7df2f0

  • SHA1

    d0debe11d0bcace3a4808fa29ee9574335d7da1a

  • SHA256

    8f95361d0997bb5fafb6353311fbee9e0403825172824798d32997c82f40eeb2

  • SHA512

    70375143aa4f939a070eb248e05c6b986f9d1041b1903a10908f71fc6d4d85c7b8f6e6bb2d9bf1f146c57118be5ecfc54c711095b705b7c185ee81f76bfd2e94

  • SSDEEP

    768:dl9fpYdyqbSgZnxF2b7jfHoxjjwoAxdqUSa:P9aEknxKjfHQjMRxdZ

Score
10/10
remcosremotehostdiscoveryratupx

Malware Config

Extracted

Family

remcos

Version

2.2.0 Light

Botnet

RemoteHost

C2

127.0.0.1:14613

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    3

  • 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-YYTQ5M

  • 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

Signatures

  • Remcos

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

    ratremcos
  • Remcos family
    remcos
  • UPX packed file 16 IoCs

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

    upx
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\remcos_agent.exe
    "C:\Users\Admin\AppData\Local\Temp\remcos_agent.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:444

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/444-0-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

    Download

  • memory/444-1-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

    Download

  • memory/444-2-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

    Download

  • memory/444-3-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

    Download

  • memory/444-4-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

    Download

  • memory/444-5-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

    Download

  • memory/444-6-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

    Download

  • memory/444-7-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

    Download

  • memory/444-8-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

    Download

  • memory/444-9-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

    Download

  • memory/444-10-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

    Download

  • memory/444-11-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

    Download

  • memory/444-12-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

    Download

  • memory/444-13-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

    Download

  • memory/444-14-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

    Download

  • memory/444-15-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

    Download