Overview

overview

10

Static

static

1

FHKPO098765432345.exe

windows7_x64

10

FHKPO098765432345.exe

windows10_x64

10

Analysis

  • max time kernel
    119s
  • max time network
    178s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    27/10/2021, 08:27

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General

  • Target
    FHKPO098765432345.exe
  • Size 456KB
  • Sample211027-kcemwsbba3
  • SHA256 1b92faab729835d30ba7c09f4033639f64b5e8b7aee6d2b09642262ff4d9e0f4
  • MD5 SHA1 SHA512
Score
10/10
remcoshostrat

Malware Config

Extracted

Family

  • remcos

Version

  • 1.7 Pro

Botnet

  • Host

C2

  • 185.222.57.90:8780

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • 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_rllxnwmcxxgutsl

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

Signatures

  • Remcos

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

    ratremcos
  • Loads dropped DLL 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 use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FHKPO098765432345.exe
    "C:\Users\Admin\AppData\Local\Temp\FHKPO098765432345.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:852
    • C:\Users\Admin\AppData\Local\Temp\FHKPO098765432345.exe
      "C:\Users\Admin\AppData\Local\Temp\FHKPO098765432345.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:568

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/568-56-0x0000000000400000-0x0000000000417000-memory.dmp
        Download

        memory/568-59-0x0000000000400000-0x0000000000417000-memory.dmp
        Download

        memory/852-54-0x0000000075331000-0x0000000075333000-memory.dmp
        Download