Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250610-en
  • resource tags

    arch:x64arch:x86image:win11-20250610-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    07/07/2025, 15:03

General

  • Target
    8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe
  • Size 1.0MB
  • Sample250707-se718atmt3
  • SHA256 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • remcos

Botnet
  • XM

C2
  • 196.251.71.39:6374

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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-G3ELBG

  • 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.

  • Remcos family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe
    "C:\Users\Admin\AppData\Local\Temp\8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4304
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3032
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\EKkAbRzEd.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2516
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EKkAbRzEd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF7DD.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2120
    • C:\Users\Admin\AppData\Local\Temp\8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe
      "C:\Users\Admin\AppData\Local\Temp\8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:4372

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        logs.dat

        • Path C:\ProgramData\remcos\logs.dat
        • Size 154B
        • SHA256 9ea811f801bd34a97224a6854fdb925b755047e82a7799784ad212cbc31aca0c
        • MD5 SHA1 SHA512

        powershell.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
        • Size 2KB
        • SHA256 9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
        • MD5 SHA1 SHA512

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 2158db182111f1efbf0dac8f363a5712dc394f655feaec996d6ac53a89153d16
        • MD5 SHA1 SHA512 SSDEEP

        __PSScriptPolicyTest_rdxroarv.mfw.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rdxroarv.mfw.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        tmpF7DD.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmpF7DD.tmp
        • Size 1KB
        • SHA256 a30e4489ed3995e2f77ba060ab34fdbebf1990ee4a7f5e6686f26e9cd7f7cba8
        • MD5 SHA1 SHA512

        memory/2516-18-0x0000000003040000-0x0000000003050000-memory.dmp

        memory/2516-76-0x0000000007E00000-0x0000000007E0E000-memory.dmp

        memory/2516-66-0x0000000006E80000-0x0000000006E9E000-memory.dmp

        memory/2516-79-0x0000000007F00000-0x0000000007F08000-memory.dmp

        memory/2516-70-0x0000000007A60000-0x0000000007B04000-memory.dmp

        memory/2516-52-0x0000000075380000-0x00000000753CC000-memory.dmp

        memory/2516-49-0x00000000068A0000-0x00000000068EC000-memory.dmp

        memory/2516-48-0x0000000006870000-0x000000000688E000-memory.dmp

        memory/2516-78-0x0000000007F10000-0x0000000007F2A000-memory.dmp

        memory/2516-17-0x0000000003040000-0x0000000003050000-memory.dmp

        memory/2516-72-0x0000000007BC0000-0x0000000007BDA000-memory.dmp

        memory/2516-73-0x0000000007C40000-0x0000000007C4A000-memory.dmp

        memory/3032-16-0x0000000005680000-0x0000000005CAA000-memory.dmp

        memory/3032-77-0x0000000007450000-0x0000000007465000-memory.dmp

        memory/3032-31-0x0000000005CB0000-0x0000000006007000-memory.dmp

        memory/3032-50-0x0000000006EC0000-0x0000000006EF4000-memory.dmp

        memory/3032-75-0x0000000007410000-0x0000000007421000-memory.dmp

        memory/3032-74-0x0000000007490000-0x0000000007526000-memory.dmp

        memory/3032-21-0x00000000051C0000-0x0000000005226000-memory.dmp

        memory/3032-20-0x0000000002CD0000-0x0000000002CF2000-memory.dmp

        memory/3032-71-0x0000000007850000-0x0000000007ECA000-memory.dmp

        memory/3032-22-0x0000000005230000-0x0000000005296000-memory.dmp

        memory/3032-14-0x0000000000F00000-0x0000000000F10000-memory.dmp

        memory/3032-51-0x0000000075380000-0x00000000753CC000-memory.dmp

        memory/3032-15-0x0000000000F00000-0x0000000000F10000-memory.dmp

        memory/3032-13-0x0000000000F10000-0x0000000000F46000-memory.dmp

        memory/4304-6-0x00000000050F0000-0x0000000005104000-memory.dmp

        memory/4304-0-0x0000000000250000-0x0000000000358000-memory.dmp

        memory/4304-7-0x0000000004DE0000-0x0000000004DF0000-memory.dmp

        memory/4304-1-0x00000000054C0000-0x0000000005A66000-memory.dmp

        memory/4304-2-0x0000000004E00000-0x0000000004E92000-memory.dmp

        memory/4304-3-0x0000000004DE0000-0x0000000004DF0000-memory.dmp

        memory/4304-8-0x0000000007B70000-0x0000000007C34000-memory.dmp

        memory/4304-4-0x0000000004EB0000-0x0000000004EBA000-memory.dmp

        memory/4304-5-0x0000000005100000-0x000000000519C000-memory.dmp

        memory/4372-89-0x0000000000400000-0x0000000000481000-memory.dmp

        memory/4372-102-0x0000000000400000-0x0000000000481000-memory.dmp

        memory/4372-45-0x0000000000400000-0x0000000000481000-memory.dmp

        memory/4372-41-0x0000000000400000-0x0000000000481000-memory.dmp

        memory/4372-96-0x0000000000400000-0x0000000000481000-memory.dmp

        memory/4372-90-0x0000000000400000-0x0000000000481000-memory.dmp

        memory/4372-47-0x0000000000400000-0x0000000000481000-memory.dmp

        memory/4372-95-0x0000000000400000-0x0000000000481000-memory.dmp

        memory/4372-42-0x0000000000400000-0x0000000000481000-memory.dmp

        memory/4372-40-0x0000000000400000-0x0000000000481000-memory.dmp

        memory/4372-103-0x0000000000400000-0x0000000000481000-memory.dmp

        memory/4372-108-0x0000000000400000-0x0000000000481000-memory.dmp

        memory/4372-109-0x0000000000400000-0x0000000000481000-memory.dmp

        memory/4372-114-0x0000000000400000-0x0000000000481000-memory.dmp

        memory/4372-116-0x0000000000400000-0x0000000000481000-memory.dmp

        memory/4372-121-0x0000000000400000-0x0000000000481000-memory.dmp

        memory/4372-122-0x0000000000400000-0x0000000000481000-memory.dmp