Analysis

  • max time kernel
    14s
  • max time network
    16s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241023-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    25-11-2024 13:17

General

  • Target

    FILE POWERSHELL MALEVOLO.ps1

  • Size

    104KB

  • MD5

    ef3e1a843da4fb31012afe474447c98b

  • SHA1

    0ca2a653b3cc7d8630e2938c18ce5dda91e0b9b7

  • SHA256

    488d775b3e2118b63dfc26020e5e7a3aa95951f78099ce8e203d50b3e1e0c66d

  • SHA512

    149744665463591cea2798f4efd90b7d5b24c763270e8530c40b7520892b67b0f92b0268456eaa5c545a1984cddca45dddb4e0461c72eee0b3f8db9592f1ec55

  • SSDEEP

    3072:ZtW7qBQqhDmaA8Hch3g+XdZQaPU91ajO3vQSo:gqBQqhDmaA8HW3g+XdZQaPU91ajO3vQH

Malware Config

Signatures

  • Sload family
  • sLoad

    sLoad is a PowerShell downloader that can exfiltrate system information and deliver additional payloads.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 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\FILE POWERSHELL MALEVOLO.ps1"
    1⤵
    • Command and Scripting Interpreter: PowerShell
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:732
    • C:\Windows\system32\schtasks.exe
      "C:\Windows\system32\schtasks.exe" /query /FO CSV /v
      2⤵
        PID:4424
      • C:\Windows\system32\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /change /tn GoFast /disable
        2⤵
          PID:1904
        • C:\Windows\system32\cmd.exe
          "C:\Windows\system32\cmd.exe" /C schtasks /F /%windir:~0,1%reate /sc minute /mo 3 /TN "S0YtCkQVvhu" /ST 07:00 /TR "wscript /E:vbscript c:\users\Admin\AppData\Roaming\\YtCkQVvhu\xCqLwymT.tmp"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2952
          • C:\Windows\system32\schtasks.exe
            schtasks /F /Create /sc minute /mo 3 /TN "S0YtCkQVvhu" /ST 07:00 /TR "wscript /E:vbscript c:\users\Admin\AppData\Roaming\\YtCkQVvhu\xCqLwymT.tmp"
            3⤵
            • Scheduled Task/Job: Scheduled Task
            PID:2252

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ce0lri5j.di0.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • memory/732-0-0x00007FFFCA643000-0x00007FFFCA645000-memory.dmp

        Filesize

        8KB

      • memory/732-1-0x00000256EDF50000-0x00000256EDF72000-memory.dmp

        Filesize

        136KB

      • memory/732-11-0x00007FFFCA640000-0x00007FFFCB102000-memory.dmp

        Filesize

        10.8MB

      • memory/732-12-0x00007FFFCA640000-0x00007FFFCB102000-memory.dmp

        Filesize

        10.8MB

      • memory/732-13-0x00007FFFCA640000-0x00007FFFCB102000-memory.dmp

        Filesize

        10.8MB

      • memory/732-18-0x00007FFFCA640000-0x00007FFFCB102000-memory.dmp

        Filesize

        10.8MB