Analysis

  • max time kernel
    148s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03/03/2025, 17:45

General

  • Target

    helloworld.exe

  • Size

    71KB

  • MD5

    9abc77c7a2d864322641837bda3d51b1

  • SHA1

    3f295fdab7c126e9bbe2a02b0faf4147f120cb90

  • SHA256

    37a61a8e9a2c0d24dba2ef51d0bdde5fde4182f0218bee900f4213cc783963ff

  • SHA512

    69c865f20c97a1e569eb9d2e5a9813747b9882c75e822edca08bbe92ca6b71f72c0ee7c8cfe1d5b6a953acf64ba3a6820b39c8492334240622c8262e31ba1723

  • SSDEEP

    1536:8nNYWPeZZ8GTqR8xGXf1qTHjIpAB+bZT5AR6WpZOVOE4jf:8HLGTk3g/IpAB+bZQfOoxf

Malware Config

Extracted

Family

xworm

C2

PovodPoestGovna-63080.portmap.io:63080:9989

Attributes
  • Install_directory

    %AppData%

  • install_file

    Windows Defender.exe

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

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

  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 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:\Users\Admin\AppData\Local\Temp\helloworld.exe
    "C:\Users\Admin\AppData\Local\Temp\helloworld.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2916
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\helloworld.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1224
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'helloworld.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2368
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\Windows Defender.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2288
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Windows Defender.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1052
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Windows Defender" /tr "C:\Users\Admin\AppData\Roaming\Windows Defender.exe"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2728
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {BA60D0EC-45E4-48BE-BE5B-2F000C36BB5A} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\Admin:Interactive:[1]
    1⤵
      PID:2296

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

      Filesize

      7KB

      MD5

      64bb903ffcc1b32becef608997149493

      SHA1

      138f300cad8276f737aedca1b6ea2af78d8640b6

      SHA256

      3c6883ec35ce7da039559fb54a7eca6ddf20a5cfe22cf9399c23ec1f2eca3aed

      SHA512

      ccdd82f723b36149d684e0f0a66620bb626d8297ea681aee527369252d9a8b4cc096f96ff57f4b0a43eb73d6f1fb54dd7eb66138b2b83bddc65a775de7aaaac1

    • memory/1224-6-0x0000000002A50000-0x0000000002AD0000-memory.dmp

      Filesize

      512KB

    • memory/1224-7-0x000000001B700000-0x000000001B9E2000-memory.dmp

      Filesize

      2.9MB

    • memory/1224-8-0x0000000001F00000-0x0000000001F08000-memory.dmp

      Filesize

      32KB

    • memory/2368-14-0x000000001B590000-0x000000001B872000-memory.dmp

      Filesize

      2.9MB

    • memory/2368-15-0x0000000001E10000-0x0000000001E18000-memory.dmp

      Filesize

      32KB

    • memory/2916-0-0x000007FEF5583000-0x000007FEF5584000-memory.dmp

      Filesize

      4KB

    • memory/2916-1-0x00000000002A0000-0x00000000002B8000-memory.dmp

      Filesize

      96KB

    • memory/2916-31-0x000000001AB60000-0x000000001ABE0000-memory.dmp

      Filesize

      512KB

    • memory/2916-32-0x000007FEF5583000-0x000007FEF5584000-memory.dmp

      Filesize

      4KB

    • memory/2916-33-0x000000001AB60000-0x000000001ABE0000-memory.dmp

      Filesize

      512KB