Overview

overview

10

Static

static

3

REMAEURXRXU.msi

windows10-2004-x64

10

REMAEURXRXU.msi

windows11-ltsc_2024-x64

10

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General

  • Target
    jaffacakes118_8a620c469f0c56e84abe0e63f28ee2a4c29a8c18c254101e44826ee01329897f.bin
  • Size 4.7MB
  • Sample260911-wz98vsbp81
  • SHA256 8a620c469f0c56e84abe0e63f28ee2a4c29a8c18c254101e44826ee01329897f
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
hijackloaderremcos25-08-2025-2discoveryloaderpersistenceprivilege_escalationransomwarerat

Malware Config

Extracted

Family

  • hijackloader

Attributes
  • directory

    %LOCALAPPDATA%\RemoteService

  • inject_dll

    %windir%\SysWOW64\pla.dll

xor.hex

Extracted

Family

  • remcos

Botnet

  • 25-08-2025-2

C2

  • postdateuptimeg.dynuddns.com:2311

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

    Dfile

  • mouse_option

    false

  • mutex

    Rmc-H485L9

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Extracted

Family

  • remcos

Version

  • 7.0.2 Pro

Botnet

  • 25-08-2025-2

C2

  • postdateuptimeg.dynuddns.com:2311

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

    Dfile

  • mouse_option

    false

  • mutex

    Rmc-H485L9

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target
      REMAEURXRXU.msi
    • Size 4.7MB
    • SHA256 07c93128511897f4d12c25931c206a4f20158a754a9059a6015223d9b0e0062f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    25-08-2025-2discoveryhijackloaderremcosloaderpersistenceprivilege_escalationransomwarerat

    • Detects HijackLoader (aka IDAT Loader)

    • Family: HijackLoader, IDAT loader, Ghostulse,

      HijackLoader is a multi-stage loader, first seen in 2023.

      loaderhijackloader

    • Family: Remcos

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

      ratremcos

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates connected drives

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

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks