Analysis

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

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    19-08-2024 03:05

General

  • Target

    a955ac034ab71cc35107fd81d4d0904a_JaffaCakes118.exe

  • Size

    396KB

  • MD5

    a955ac034ab71cc35107fd81d4d0904a

  • SHA1

    7e00fa5b9e8718d6ae19856ecc1be4cbf487a164

  • SHA256

    ba52101e664d1ab4110977264bb16ff13c5bf4bdb004ddcacba915006d275b81

  • SHA512

    48804a5469f810aa8f936e5ee5e466263a8da35d42c058fb7a77928b22135ea2e3b3bf41ad075a8449d3c13c4dcaa84aa6ce5e463c33ccc40e40c21cd90e847d

  • SSDEEP

    12288:F3P+z2F99SVFC6UJiMCXxdS3uh57eNgZP:F342FUVMCXjlhVeNg5

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\a955ac034ab71cc35107fd81d4d0904a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a955ac034ab71cc35107fd81d4d0904a_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:2424
    • C:\Users\Admin\AppData\Local\Temp\a955ac034ab71cc35107fd81d4d0904a_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\a955ac034ab71cc35107fd81d4d0904a_JaffaCakes118.exe"
      2⤵
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2156
      • 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:2376
        • 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:2852
          • 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:2876
            • 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:2828

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    622B

    MD5

    643a79abdc3f32f5a14d7964d479040c

    SHA1

    33368a48f78ff737aa2f4c0cbf9a4810e23f3780

    SHA256

    115a6f1c26738bfd44c3d81723d091bc90662123ad01497b353707161997948e

    SHA512

    3a42f2753a9a2d14c461722923622408eb76b6f85bd186377bfe2af44ff882714a38e0d223d69d2b28dc8390cc386c6fef5bf325dc20e4cf499d991e32d2bb58

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

    Filesize

    396KB

    MD5

    a955ac034ab71cc35107fd81d4d0904a

    SHA1

    7e00fa5b9e8718d6ae19856ecc1be4cbf487a164

    SHA256

    ba52101e664d1ab4110977264bb16ff13c5bf4bdb004ddcacba915006d275b81

    SHA512

    48804a5469f810aa8f936e5ee5e466263a8da35d42c058fb7a77928b22135ea2e3b3bf41ad075a8449d3c13c4dcaa84aa6ce5e463c33ccc40e40c21cd90e847d

  • memory/2156-4-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2156-6-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2156-12-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2156-11-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2156-19-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2156-18-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2424-2-0x00000000003B0000-0x00000000003B1000-memory.dmp

    Filesize

    4KB

  • memory/2424-3-0x00000000003C0000-0x00000000003C3000-memory.dmp

    Filesize

    12KB

  • memory/2828-32-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2828-37-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2828-29-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2828-33-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2828-34-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2828-35-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2828-36-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2828-31-0x0000000000400000-0x000000000047A000-memory.dmp

    Filesize

    488KB

  • memory/2828-38-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2828-39-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2828-40-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2828-41-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2828-42-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2828-43-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2828-44-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2828-45-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB