Overview

overview

10

Static

static

3

remcos_a.exe

windows7-x64

10

remcos_a.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    10s
  • max time network
    1s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    15-10-2024 02:35

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General

  • Target

    remcos_a.exe

  • Size

    197KB

  • MD5

    00066c51d880acd70f6f6e6202c136f1

  • SHA1

    15d986d05b336eeac81790486b99991422c6f250

  • SHA256

    7c526ae46d76a81ede4fc90e6c5b0b5a08865047d3c954779ba652a84765e29b

  • SHA512

    e41b46013f036d3ea5187d3ce66e80e10a0ba779ae0ee255b5ee8ba2552cfef3fa7e2550d4a7054872804350c24cc1f552911d416d95ef511901c9786931a8f2

  • SSDEEP

    3072:PDtAK2g8lewoo0nT7e/2Pjohbjs29qBk9fZARr8H4en4H8T7qQdZ6sR6msUdIII:PDtA48lv0nTSVzor8HBnrZZTR6ms

Score
10/10
remcosremotehostdiscoveryrat

Malware Config

Extracted

Family

remcos

Version

5.1.3 Light

Botnet

RemoteHost

C2

127.0.0.1:2404

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-2U9M0Z

  • 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.

    ratremcos
  • 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_a.exe
    "C:\Users\Admin\AppData\Local\Temp\remcos_a.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1600

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1600-0-0x0000000000400000-0x000000000047B000-memory.dmp

    Filesize

    492KB

    Download

  • memory/1600-1-0x0000000000475000-0x0000000000476000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1600-2-0x0000000000400000-0x000000000047B000-memory.dmp

    Filesize

    492KB

    Download

  • memory/1600-4-0x0000000000475000-0x0000000000476000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1600-3-0x0000000000400000-0x000000000047B000-memory.dmp

    Filesize

    492KB

    Download