Overview

overview

10

Static

static

5

7b33267a20...b4.exe

windows7_x64

10

7b33267a20...b4.exe

windows10_x64

10

Analysis

  • max time kernel
    155s
  • max time network
    169s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    30/08/2021, 07:06

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General

  • Target
    7b33267a200d3c6e07be475321fe92421b28ca6c3ebcd31c744bf71ca24d45b4.exe
  • Size 1.2MB
  • Sample210830-kcm9f6ebte
  • SHA256 7b33267a200d3c6e07be475321fe92421b28ca6c3ebcd31c744bf71ca24d45b4
  • MD5 SHA1 SHA512
Score
10/10
remcosadminrat

Malware Config

Extracted

Family

  • remcos

Version

  • 2.4.5 Pro

Botnet

  • admin

C2

  • rem-pounds.ddns.net:9970

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

    true

  • 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-YWGXE2

  • 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

    wikipedia;solitaire;

Signatures

  • Remcos

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

    ratremcos
  • Drops startup file 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 30 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7b33267a200d3c6e07be475321fe92421b28ca6c3ebcd31c744bf71ca24d45b4.exe
    "C:\Users\Admin\AppData\Local\Temp\7b33267a200d3c6e07be475321fe92421b28ca6c3ebcd31c744bf71ca24d45b4.exe"
    1⤵
    • Drops startup file
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4796
    • C:\Users\Admin\AppData\Local\Temp\7b33267a200d3c6e07be475321fe92421b28ca6c3ebcd31c744bf71ca24d45b4.exe
      "C:\Users\Admin\AppData\Local\Temp\7b33267a200d3c6e07be475321fe92421b28ca6c3ebcd31c744bf71ca24d45b4.exe"
      2⤵
      • Suspicious behavior: GetForegroundWindowSpam
      PID:576

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/576-114-0x0000000000400000-0x0000000000420000-memory.dmp
        Download

        memory/576-121-0x0000000000400000-0x0000000000420000-memory.dmp
        Download

        memory/4796-122-0x0000000001630000-0x0000000001631000-memory.dmp
        Download