Overview

overview

10

Static

static

10

au88buzz.exe

windows10-2004-x64

10

au88buzz.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    30/09/2026, 06:38

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    au88buzz.exe
  • Size 645KB
  • Sample260930-heaevavfrd
  • SHA256 6603337fd89ce3e0b1c3602a013a18711cd0a33a40e0960c3f9b093eb3fe1f88
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
remotehostdiscoveryremcospersistenceratsuricata

Malware Config

Extracted

Family

  • remcos

Version

  • 7.3.1 Pro

Botnet

  • RemoteHost

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %Temp%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    okvip.exe

  • copy_folder

    okvip

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    okvip

  • mouse_option

    false

  • mutex

    RemcosFocus-RXIEAS

  • screenshot_crypt

    false

  • screenshot_flag

    true

  • screenshot_folder

    Screenshots

  • screenshot_path

    %SystemDrive%

  • screenshot_time

    5

  • startup_value

    

  • take_screenshot_option

    true

  • take_screenshot_time

    5

  • take_screenshot_title

    chrome;discord;facebook;telegram;whatsapp;youtube;instagram;tiktok;spotify;netflix;zoom;teams;slack;steam;vlc;coccoc

Signatures

  • Family: Remcos

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

    ratremcos
  • Suricata alert: REMCOS RAT Malware Outbound C2 Communication 64 IoCs

    Network activity triggered a Suricata alert

    suricataremcos
  • Adds policy Run key to start application 2 TTPs 4 IoCs
    persistence
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

    discovery
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\au88buzz.exe
    "C:\Users\Admin\AppData\Local\Temp\au88buzz.exe"
    1⤵
    • Adds policy Run key to start application
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:4148
    • C:\ProgramData\okvip\okvip.exe
      "C:\ProgramData\okvip\okvip.exe"
      2⤵
      • Suricata alert: REMCOS RAT Malware Outbound C2 Communication
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Adds Run key to start application
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4004
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x404 0x378
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3408

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        okvip.exe
        • Path C:\ProgramData\okvip\okvip.exe
        • Size 645KB
        • SHA256 6603337fd89ce3e0b1c3602a013a18711cd0a33a40e0960c3f9b093eb3fe1f88
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download