Analysis

  • max time kernel
    141s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    03/04/2024, 04:37

General

  • Target
    Graustark/resultalet/Unmeringued.ps1
  • Size 60KB
  • Sample240403-e8z1tagf43
  • SHA256 8559f472b29a2d1de1124b1b2aa6d62558b1207a3910048d77b9bb07501e3733
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10

Malware Config

Signatures

  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 13 IoCs
  • Suspicious use of FindShellTrayWindow 30 IoCs
  • Suspicious use of SendNotifyMessage 19 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\Graustark\resultalet\Unmeringued.ps1
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2532
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe" /c "set /A 1^^0"
      2⤵
        PID:2700
      • C:\Windows\system32\wermgr.exe
        "C:\Windows\system32\wermgr.exe" "-outproc" "2532" "1140"
        2⤵
          PID:1548
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Modifies Installed Components in the registry
        • Modifies registry class
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2692

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            OutofProcReport259432703.txt

            • Path C:\Users\Admin\AppData\Local\Temp\OutofProcReport259432703.txt
            • Size 1KB
            • SHA256 0853fce785493b3dbb66635ca823e138b968f60a2aa082b8dd88d99385b4fe62
            • MD5 SHA1 SHA512

            memory/2532-13-0x00000000025C0000-0x0000000002640000-memory.dmp

            memory/2532-5-0x000007FEF5290000-0x000007FEF5C2D000-memory.dmp

            memory/2532-7-0x0000000002560000-0x0000000002568000-memory.dmp

            memory/2532-8-0x000007FEF5290000-0x000007FEF5C2D000-memory.dmp

            memory/2532-9-0x00000000025C0000-0x0000000002640000-memory.dmp

            memory/2532-10-0x00000000025C0000-0x0000000002640000-memory.dmp

            memory/2532-6-0x00000000025C0000-0x0000000002640000-memory.dmp

            memory/2532-19-0x000007FEF5290000-0x000007FEF5C2D000-memory.dmp

            memory/2532-11-0x00000000025C0000-0x0000000002640000-memory.dmp

            memory/2532-15-0x00000000029C0000-0x00000000029C4000-memory.dmp

            memory/2532-4-0x000000001B400000-0x000000001B6E2000-memory.dmp

            memory/2532-18-0x00000000025C0000-0x0000000002640000-memory.dmp

            memory/2692-14-0x0000000004070000-0x0000000004071000-memory.dmp

            memory/2692-20-0x0000000004070000-0x0000000004071000-memory.dmp

            memory/2692-24-0x0000000003950000-0x0000000003960000-memory.dmp