Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/07/2026, 11:07

General

  • Target
    b82f9e8db8498f52fe986a31acc6ec7ba2de38c4c7a1aa69f043f577497d87e0.exe
  • Size 359KB
  • Sample260720-m8dftafy4k
  • SHA256 b82f9e8db8498f52fe986a31acc6ec7ba2de38c4c7a1aa69f043f577497d87e0
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • remcos

Version
  • 7.2.5 Pro

Botnet
  • RemoteHost

C2
  • 107.175.148.68:2404

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-S7EK0D

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Family: Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Family: Remcos

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

  • Loads dropped DLL 1 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b82f9e8db8498f52fe986a31acc6ec7ba2de38c4c7a1aa69f043f577497d87e0.exe
    "C:\Users\Admin\AppData\Local\Temp\b82f9e8db8498f52fe986a31acc6ec7ba2de38c4c7a1aa69f043f577497d87e0.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3100
    • C:\Users\Admin\AppData\Local\Temp\b82f9e8db8498f52fe986a31acc6ec7ba2de38c4c7a1aa69f043f577497d87e0.exe
      "C:\Users\Admin\AppData\Local\Temp\b82f9e8db8498f52fe986a31acc6ec7ba2de38c4c7a1aa69f043f577497d87e0.exe"
      2⤵
        PID:5828
      • C:\Users\Admin\AppData\Local\Temp\b82f9e8db8498f52fe986a31acc6ec7ba2de38c4c7a1aa69f043f577497d87e0.exe
        "C:\Users\Admin\AppData\Local\Temp\b82f9e8db8498f52fe986a31acc6ec7ba2de38c4c7a1aa69f043f577497d87e0.exe"
        2⤵
        • Suspicious use of NtCreateThreadExHideFromDebugger
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:812
        • C:\Users\Admin\AppData\Local\Temp\b82f9e8db8498f52fe986a31acc6ec7ba2de38c4c7a1aa69f043f577497d87e0.exe
          "C:\Users\Admin\AppData\Local\Temp\b82f9e8db8498f52fe986a31acc6ec7ba2de38c4c7a1aa69f043f577497d87e0.exe"
          3⤵
            PID:1124

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            logs.dat

            • Path C:\ProgramData\remcos\logs.dat
            • Size 102B
            • SHA256 f89503a458cbc8960633dae4a22cf74c42c609736801d2f0660e8b2202cf86c1
            • MD5 SHA1 SHA512 TLSH

            System.dll

            • Path C:\Users\Admin\AppData\Local\Temp\nsb799.tmp\System.dll
            • Size 11KB
            • SHA256 f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/812-44-0x0000000000490000-0x0000000001776000-memory.dmp

            memory/812-47-0x0000000000490000-0x0000000001776000-memory.dmp

            memory/812-29-0x0000000000490000-0x0000000001776000-memory.dmp

            memory/812-34-0x0000000000490000-0x0000000001776000-memory.dmp

            memory/812-35-0x0000000001780000-0x0000000003C4B000-memory.dmp

            memory/812-38-0x0000000000490000-0x0000000001776000-memory.dmp

            memory/812-41-0x0000000000490000-0x0000000001776000-memory.dmp

            memory/812-74-0x0000000000490000-0x0000000001776000-memory.dmp

            memory/812-71-0x0000000000490000-0x0000000001776000-memory.dmp

            memory/812-17-0x0000000001780000-0x0000000003C4B000-memory.dmp

            memory/812-50-0x0000000000490000-0x0000000001776000-memory.dmp

            memory/812-53-0x0000000000490000-0x0000000001776000-memory.dmp

            memory/812-56-0x0000000000490000-0x0000000001776000-memory.dmp

            memory/812-59-0x0000000000490000-0x0000000001776000-memory.dmp

            memory/812-62-0x0000000000490000-0x0000000001776000-memory.dmp

            memory/812-65-0x0000000000490000-0x0000000001776000-memory.dmp

            memory/812-68-0x0000000000490000-0x0000000001776000-memory.dmp

            memory/3100-15-0x0000000003360000-0x000000000582B000-memory.dmp

            memory/3100-16-0x0000000010004000-0x0000000010005000-memory.dmp