Analysis

  • max time kernel
    141s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/08/2024, 01:04

General

  • Target
    158363d522e8df85c58ade3d6ca67df06df8453dc33558b2130d218849879493.exe
  • Size 427KB
  • Sample240817-be9fls1fmn
  • SHA256 158363d522e8df85c58ade3d6ca67df06df8453dc33558b2130d218849879493
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • darkcloud

C2
  • https://api.telegram.org/bot6686872771:AAGUwkUh0LMB8XwZ6Sv6jR4DHAsdZafImc0/sendMessage?chat_id=6542615755

Signatures

  • DarkCloud

    An information stealer written in Visual Basic.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\158363d522e8df85c58ade3d6ca67df06df8453dc33558b2130d218849879493.exe
    "C:\Users\Admin\AppData\Local\Temp\158363d522e8df85c58ade3d6ca67df06df8453dc33558b2130d218849879493.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4988
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:4872

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        memory/4872-5-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/4872-8-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/4872-12-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/4988-0-0x00007FFF127F3000-0x00007FFF127F5000-memory.dmp

        memory/4988-1-0x000001ED97390000-0x000001ED97402000-memory.dmp

        memory/4988-2-0x000001ED99130000-0x000001ED99196000-memory.dmp

        memory/4988-3-0x00007FFF127F0000-0x00007FFF132B1000-memory.dmp

        memory/4988-4-0x000001ED977B0000-0x000001ED977C4000-memory.dmp

        memory/4988-9-0x00007FFF127F0000-0x00007FFF132B1000-memory.dmp