Analysis

  • max time kernel
    149s
  • max time network
    46s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250610-en
  • resource tags

    arch:x64arch:x86image:win11-20250610-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    09/10/2025, 17:08

General

  • Target
    ec1aeca8261ab1b312eee4d0bb17ba3a274789747b7f3e1a026f95e39e8bed97.exe
  • Size 813KB
  • Sample251009-vnvtcssj13
  • SHA256 ec1aeca8261ab1b312eee4d0bb17ba3a274789747b7f3e1a026f95e39e8bed97
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • darkcloud

Attributes

Signatures

  • DarkCloud

    An information stealer written in Visual Basic.

  • Darkcloud family
  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • 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 use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ec1aeca8261ab1b312eee4d0bb17ba3a274789747b7f3e1a026f95e39e8bed97.exe
    "C:\Users\Admin\AppData\Local\Temp\ec1aeca8261ab1b312eee4d0bb17ba3a274789747b7f3e1a026f95e39e8bed97.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2220
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:4296

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        memory/2220-0-0x0000000000D20000-0x0000000000DF2000-memory.dmp

        memory/2220-1-0x0000000005DE0000-0x0000000006386000-memory.dmp

        memory/2220-2-0x0000000005830000-0x00000000058C2000-memory.dmp

        memory/2220-3-0x0000000005AB0000-0x0000000005AC0000-memory.dmp

        memory/2220-4-0x0000000005770000-0x000000000577A000-memory.dmp

        memory/2220-5-0x00000000059C0000-0x0000000005A5C000-memory.dmp

        memory/2220-6-0x0000000006E70000-0x0000000006E88000-memory.dmp

        memory/2220-7-0x0000000005AB0000-0x0000000005AC0000-memory.dmp

        memory/2220-8-0x0000000006EF0000-0x0000000006F7E000-memory.dmp

        memory/4296-11-0x0000000000400000-0x0000000000443000-memory.dmp

        memory/4296-9-0x0000000000400000-0x0000000000443000-memory.dmp

        memory/4296-15-0x0000000000400000-0x0000000000443000-memory.dmp