Analysis

  • max time kernel
    37s
  • max time network
    38s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/08/2024, 09:25

General

  • Target

    airobuxgen.ps1

  • Size

    2KB

  • MD5

    3991073564f05900f8dcf9ea6d65893d

  • SHA1

    18e1d0109180a84dad717943262b38c0d827a009

  • SHA256

    f02820869fb4768c2e5e04f85168bde9222b11c3c575118296be5dfd6af07b3a

  • SHA512

    f1341a552b9d72d150a34e15ee278dcc107e4aedc4773728b26cf0f0406cef51d823e7443d3ae2cd8bf4ecadfc1c18ebb00b6aa0d2f6a872022f9654a6d0dd3f

Malware Config

Signatures

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 8 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 IoCs
  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 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\airobuxgen.ps1
    1⤵
    • Adds Run key to start application
    • Drops file in System32 directory
    • Command and Scripting Interpreter: PowerShell
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3676
    • C:\Windows\system32\netsh.exe
      "C:\Windows\system32\netsh.exe" advfirewall set allprofiles state off
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      PID:1800
    • C:\Windows\system32\schtasks.exe
      "C:\Windows\system32\schtasks.exe" /create /tn MaliciousTask /tr C:\Windows\System32\malware.bat /sc onlogon /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:3592
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe" /c ping localhost -n 5 >nul & echo Injecting into process
      2⤵
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:1672
      • C:\Windows\system32\PING.EXE
        ping localhost -n 5
        3⤵
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:1828
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -p -s Winmgmt
    1⤵
    • Drops file in System32 directory
    PID:2744
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager
    1⤵
      PID:2024

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yoemjj32.j1l.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/3676-0-0x00007FFA0FF63000-0x00007FFA0FF65000-memory.dmp

      Filesize

      8KB

    • memory/3676-1-0x00000154FEDB0000-0x00000154FEDD2000-memory.dmp

      Filesize

      136KB

    • memory/3676-11-0x00007FFA0FF60000-0x00007FFA10A21000-memory.dmp

      Filesize

      10.8MB

    • memory/3676-12-0x00007FFA0FF60000-0x00007FFA10A21000-memory.dmp

      Filesize

      10.8MB

    • memory/3676-14-0x00007FFA0FF60000-0x00007FFA10A21000-memory.dmp

      Filesize

      10.8MB

    • memory/3676-15-0x00007FFA0FF60000-0x00007FFA10A21000-memory.dmp

      Filesize

      10.8MB

    • memory/3676-16-0x00007FFA0FF63000-0x00007FFA0FF65000-memory.dmp

      Filesize

      8KB

    • memory/3676-17-0x00007FFA0FF60000-0x00007FFA10A21000-memory.dmp

      Filesize

      10.8MB

    • memory/3676-18-0x00007FFA0FF60000-0x00007FFA10A21000-memory.dmp

      Filesize

      10.8MB