Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    11-08-2024 22:22

General

  • Target

    8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe

  • Size

    412KB

  • MD5

    8c359e6a1e069354f3c7ceb5457157e6

  • SHA1

    b1d305325bdf240f374de2f10932db83290199ff

  • SHA256

    598fbc003f3775d3441846dec51317b6e81422a78c9a0d1b53353025d6953175

  • SHA512

    98292df3fdc144f80b0e5c0f767323c65b1284a2adc282c528428f80b0b4045d50fa8f168c7bec9541e62b11548c177a552bd5d49f62ebf0a6a2174df234a613

  • SSDEEP

    6144:wqM0Y9PoTx4xOm6FylOUunSxIbshHuYxE17ACbPTvPCd7oPhUumf:MiW85S2boHuY217AyvPKUPm

Malware Config

Extracted

Family

remcos

Version

3.0.1 Pro

Botnet

RemoteHost

C2

capriteam.ddns.net:1010

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    true

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-VHHYND

  • 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

  • take_screenshot_title

    wikipedia;solitaire;

Signatures

  • Remcos

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 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 6 IoCs

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

  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2972
    • C:\Users\Admin\AppData\Local\Temp\8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe"
      2⤵
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2668
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
        3⤵
        • Deletes itself
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2544
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"
          4⤵
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2684
          • C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
            C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:2016
            • C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
              "C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"
              6⤵
              • Executes dropped EXE
              • Adds Run key to start application
              • System Location Discovery: System Language Discovery
              PID:2500

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\install.vbs

    Filesize

    622B

    MD5

    446d46a10ed98089b971d9a020d5e3a9

    SHA1

    2d9122ad7824a0cdd921957ee6e22d49da3e8464

    SHA256

    edddf2f2b1a3ba2193fab31fc4be5959b6edf09cb66d29e3c0baf975551efc3d

    SHA512

    fb3ad7e626ba20d9660aeaba662a946c38fd4bb731e65a1f3a8589d410bfb4c27b089a3b94a9898acc91bd9df9f6c905e573f009aa84cef1b7d46bad5fbe48e5

  • C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe

    Filesize

    412KB

    MD5

    8c359e6a1e069354f3c7ceb5457157e6

    SHA1

    b1d305325bdf240f374de2f10932db83290199ff

    SHA256

    598fbc003f3775d3441846dec51317b6e81422a78c9a0d1b53353025d6953175

    SHA512

    98292df3fdc144f80b0e5c0f767323c65b1284a2adc282c528428f80b0b4045d50fa8f168c7bec9541e62b11548c177a552bd5d49f62ebf0a6a2174df234a613

  • memory/2500-39-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2500-41-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2500-30-0x0000000000400000-0x000000000047C000-memory.dmp

    Filesize

    496KB

  • memory/2500-45-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2500-33-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2500-43-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2500-42-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2500-38-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2500-40-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2500-32-0x0000000000400000-0x000000000047C000-memory.dmp

    Filesize

    496KB

  • memory/2500-46-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2500-44-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2500-37-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2500-36-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2500-34-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2668-19-0x0000000000400000-0x000000000047C000-memory.dmp

    Filesize

    496KB

  • memory/2668-4-0x0000000000400000-0x000000000047C000-memory.dmp

    Filesize

    496KB

  • memory/2668-6-0x0000000000400000-0x000000000047C000-memory.dmp

    Filesize

    496KB

  • memory/2668-20-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2668-12-0x0000000000400000-0x000000000047C000-memory.dmp

    Filesize

    496KB

  • memory/2668-13-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2972-2-0x00000000001C0000-0x00000000001C1000-memory.dmp

    Filesize

    4KB

  • memory/2972-3-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB

  • memory/2972-7-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB