Overview

overview

10

Static

static

3

45d2774e85...62.exe

windows10-2004-x64

10

45d2774e85...62.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/06/2026, 04:12

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General

  • Target
    45d2774e85ef19ded1b6a9dfcae50c06274ae0c387a7c36933816287437c5d62.exe
  • Size 474KB
  • Sample260630-esrphaet4x
  • SHA256 45d2774e85ef19ded1b6a9dfcae50c06274ae0c387a7c36933816287437c5d62
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adware$100 milliondiscoveryremcospersistenceratspyware

Malware Config

Extracted

Family

  • remcos

Version

  • 3.8.0 Pro

Botnet

  • $100 MILLION

C2

  • craekuro.duckdns.org:1950

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-YHG91Z

  • 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

  • Family: Remcos

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

    ratremcos
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • 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
  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 40 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\45d2774e85ef19ded1b6a9dfcae50c06274ae0c387a7c36933816287437c5d62.exe
    "C:\Users\Admin\AppData\Local\Temp\45d2774e85ef19ded1b6a9dfcae50c06274ae0c387a7c36933816287437c5d62.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    PID:4380
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:124
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1232
      • C:\Windows\explorer.exe
        explorer.exe /LOADSAVEDWINDOWS
        2⤵
        • Boot or Logon Autostart Execution: Active Setup
        • Enumerates connected drives
        • Checks SCSI registry key(s)
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:5096
    • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
      "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:5244
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:4396

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          logs.dat
          • Path C:\ProgramData\remcos\logs.dat
          • Size 144B
          • SHA256 e7f6b785e089bc6eca89aaa074538f99a7976467a01bda3fe23bd6a31d658638
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          prep_Activatable Class_Hermes_perf.cache
          • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
          • Size 595B
          • SHA256 d4e60617c2afab8263febabe7f14f18595715078d71307a8cefe0707dae76dee
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          memory/4380-207-0x0000000000610000-0x000000000068F000-memory.dmp
          Download

          memory/4380-229-0x0000000000610000-0x000000000068F000-memory.dmp
          Download

          memory/4380-6-0x0000000000610000-0x000000000068F000-memory.dmp
          Download

          memory/4380-2-0x0000000000610000-0x000000000068F000-memory.dmp
          Download

          memory/4380-253-0x0000000000610000-0x000000000068F000-memory.dmp
          Download

          memory/4380-252-0x0000000000610000-0x000000000068F000-memory.dmp
          Download

          memory/4380-243-0x0000000000610000-0x000000000068F000-memory.dmp
          Download

          memory/4380-197-0x0000000000610000-0x000000000068F000-memory.dmp
          Download

          memory/4380-231-0x0000000000610000-0x000000000068F000-memory.dmp
          Download

          memory/4380-153-0x0000000000610000-0x000000000068F000-memory.dmp
          Download

          memory/4380-152-0x0000000000580000-0x0000000000602000-memory.dmp
          Download

          memory/4380-1-0x0000000000610000-0x000000000068F000-memory.dmp
          Download

          memory/4380-5-0x0000000000610000-0x000000000068F000-memory.dmp
          Download

          memory/4380-240-0x0000000000610000-0x000000000068F000-memory.dmp
          Download

          memory/4380-196-0x0000000000610000-0x000000000068F000-memory.dmp
          Download

          memory/4380-206-0x0000000000610000-0x000000000068F000-memory.dmp
          Download

          memory/4380-0-0x0000000000580000-0x0000000000602000-memory.dmp
          Download

          memory/4380-218-0x0000000000610000-0x000000000068F000-memory.dmp
          Download

          memory/4380-219-0x0000000000610000-0x000000000068F000-memory.dmp
          Download

          memory/4396-193-0x000001FAC4560000-0x000001FAC465F000-memory.dmp
          Download

          memory/5244-40-0x0000026F03A30000-0x0000026F03A50000-memory.dmp
          Download

          memory/5244-41-0x0000026F13E90000-0x0000026F13F90000-memory.dmp
          Download

          memory/5244-74-0x0000026F14210000-0x0000026F14230000-memory.dmp
          Download

          memory/5244-52-0x0000026F03C90000-0x0000026F03CB0000-memory.dmp
          Download

          memory/5244-29-0x0000026F001E0000-0x0000026F002E0000-memory.dmp
          Download