Analysis

  • max time kernel
    141s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    07/02/2025, 14:06

General

  • Target
    20da52004f3b7664034886b4a4f1b9fb5d8d89ef89daf874e6a28d349cc93364.exe
  • Size 1.0MB
  • Sample250207-reqlhatlev
  • SHA256 20da52004f3b7664034886b4a4f1b9fb5d8d89ef89daf874e6a28d349cc93364
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • darkcloud

Attributes

Signatures

  • DarkCloud

    An information stealer written in Visual Basic.

  • Darkcloud family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\20da52004f3b7664034886b4a4f1b9fb5d8d89ef89daf874e6a28d349cc93364.exe
    "C:\Users\Admin\AppData\Local\Temp\20da52004f3b7664034886b4a4f1b9fb5d8d89ef89daf874e6a28d349cc93364.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2692
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UDkjAPbgHcL.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2084
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UDkjAPbgHcL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE43.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2820
    • C:\Users\Admin\AppData\Local\Temp\20da52004f3b7664034886b4a4f1b9fb5d8d89ef89daf874e6a28d349cc93364.exe
      "C:\Users\Admin\AppData\Local\Temp\20da52004f3b7664034886b4a4f1b9fb5d8d89ef89daf874e6a28d349cc93364.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:2852

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        tmpE43.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmpE43.tmp
        • Size 1KB
        • SHA256 7050eec482fcdaa4f90466964a0b4bd30879009f840cec51069ced0ccaa06068
        • MD5 SHA1 SHA512

        memory/2692-6-0x0000000008660000-0x000000000870A000-memory.dmp

        memory/2692-27-0x0000000074BF0000-0x00000000752DE000-memory.dmp

        memory/2692-3-0x00000000004D0000-0x00000000004EA000-memory.dmp

        memory/2692-4-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

        memory/2692-5-0x0000000074BF0000-0x00000000752DE000-memory.dmp

        memory/2692-0-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

        memory/2692-1-0x0000000000DB0000-0x0000000000EBA000-memory.dmp

        memory/2692-2-0x0000000074BF0000-0x00000000752DE000-memory.dmp

        memory/2852-14-0x0000000000400000-0x0000000000460000-memory.dmp

        memory/2852-24-0x0000000000400000-0x0000000000460000-memory.dmp

        memory/2852-23-0x0000000000400000-0x0000000000460000-memory.dmp

        memory/2852-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        memory/2852-18-0x0000000000400000-0x0000000000460000-memory.dmp

        memory/2852-16-0x0000000000400000-0x0000000000460000-memory.dmp