Analysis

  • max time kernel
    133s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    22-04-2024 11:31

General

  • Target

    ravnemorens/Frsteinstanserne/Instantiations.ps1

  • Size

    54KB

  • MD5

    63d0c546b30964e943c2ac8fd5e236db

  • SHA1

    7d46713cb1d3cbfe25efcaf24369fb067d310920

  • SHA256

    eb26aa5b4ec7a1c0c0ad2be344c02a23f770815a40e84e5b1b5fe24c9b64edda

  • SHA512

    91399fec920e3be9526e1af39a632512c6c00cea3566a9ce43fdbadf813c5b2b830620bfc381747b195a4e2c52b8ef4d81295b484ea6ed925979a97b8cf6a1ed

  • SSDEEP

    768:stRSpMsDEBbiYzC9AUQg+Fj0VY6fgw8cl+ZzPhkrV439KaEJQkP5HF0GEFGRGI:uRUM0qbiCYYo3gnZzPKrOtKaiT8rE

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 29 IoCs
  • Suspicious use of SendNotifyMessage 17 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\ravnemorens\Frsteinstanserne\Instantiations.ps1
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe" /c "set /A 1^^0"
      2⤵
        PID:1116
      • C:\Windows\system32\wermgr.exe
        "C:\Windows\system32\wermgr.exe" "-outproc" "1724" "1092"
        2⤵
          PID:2712
      • 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:2576

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\OutofProcReport259401255.txt

        Filesize

        1KB

        MD5

        f33dab717aae34b5aac77835041e116a

        SHA1

        fd223830d3a594cd8b16ded961d55e80cc4e0c9e

        SHA256

        d0df7cf36ef5e9fa79973f6c8d7022a2de10eb444a6d773c616325917e9e446c

        SHA512

        69f6d1a1704007145673f873600baaab113d392b97bf5812c6a6514e2681a128cfa5211b6a3754f7c631b441c882011946d73d40b879071d970d8f346dd7855e

      • memory/1724-13-0x00000000028E0000-0x0000000002960000-memory.dmp

        Filesize

        512KB

      • memory/1724-6-0x000007FEF5460000-0x000007FEF5DFD000-memory.dmp

        Filesize

        9.6MB

      • memory/1724-7-0x00000000028E0000-0x0000000002960000-memory.dmp

        Filesize

        512KB

      • memory/1724-8-0x000007FEF5460000-0x000007FEF5DFD000-memory.dmp

        Filesize

        9.6MB

      • memory/1724-9-0x00000000028E0000-0x0000000002960000-memory.dmp

        Filesize

        512KB

      • memory/1724-10-0x00000000028E0000-0x0000000002960000-memory.dmp

        Filesize

        512KB

      • memory/1724-5-0x0000000002810000-0x0000000002818000-memory.dmp

        Filesize

        32KB

      • memory/1724-4-0x000000001B500000-0x000000001B7E2000-memory.dmp

        Filesize

        2.9MB

      • memory/1724-11-0x00000000028E0000-0x0000000002960000-memory.dmp

        Filesize

        512KB

      • memory/1724-16-0x000000001BC90000-0x000000001BC94000-memory.dmp

        Filesize

        16KB

      • memory/1724-17-0x00000000028E0000-0x0000000002960000-memory.dmp

        Filesize

        512KB

      • memory/1724-18-0x000007FEF5460000-0x000007FEF5DFD000-memory.dmp

        Filesize

        9.6MB

      • memory/2576-19-0x0000000004540000-0x0000000004541000-memory.dmp

        Filesize

        4KB

      • memory/2576-20-0x0000000004540000-0x0000000004541000-memory.dmp

        Filesize

        4KB

      • memory/2576-24-0x0000000002980000-0x0000000002990000-memory.dmp

        Filesize

        64KB