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Overview

overview

10

Static

static

10

skibidirat.exe

windows7-x64

10

skibidirat.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    05/08/2024, 12:06

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General

  • Target

    skibidirat.exe

  • Size

    41KB

  • MD5

    f2e5db54a0c2fcea960e780a0f2f9084

  • SHA1

    ea761e056da05eedcd002595b3f2e9dae8c4d475

  • SHA256

    5671047446840afc32551f04b3fc8ddcc59d7440d23ffa9cd84f88a178f29e22

  • SHA512

    8fddd587e7c5379d83857c1b6e2f0a9b987212a8c62bd5d9214870d1157ca35407d889bcb924904be40d4d87d61df117a0bc8ded7bf43c44dc0705d5f56036f8

  • SSDEEP

    768:I3MEkvhOq0S5us9VYCfRaYVO8MoJpJIF5PG9neb6vOwhZ35iI:6MEk5T0EDfz0Hfo3aFI9eb6vOwT8I

Score
10/10
xwormexecutionpersistencerattrojan

Malware Config

Extracted

Family

xworm

Version

5.0

Mutex

mKfmwhMRsVlgqzJg

Attributes
  • Install_directory

    %AppData%

  • install_file

    Windows host process.exe

  • pastebin_url

    https://pastebin.com/raw/BZjSD36y

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm
  • 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.

    execution
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 11 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.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\skibidirat.exe
    "C:\Users\Admin\AppData\Local\Temp\skibidirat.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:2540
    • 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\skibidirat.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2756
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'skibidirat.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2748
    • 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 host process.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2900
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Windows host process.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2692
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Windows host process" /tr "C:\Users\Admin\AppData\Roaming\Windows host process.exe"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:832
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {5D9C6BFF-8DFD-4203-AFBC-F7C097ED1F64} S-1-5-21-2212144002-1172735686-1556890956-1000:MVFYZPLM\Admin:Interactive:[1]
    1⤵
      PID:2856

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      7KB

      MD5

      5ea08430bfe778d71034313041dafd04

      SHA1

      6bcb8e681aa5a4a6fa0a4c0a9d9fe80ee7ab72bf

      SHA256

      56de94e0f07cf9e06331da02e007dc272b8b5f94b4ef6222f6f4468f5a15c239

      SHA512

      41e80c65d04093b46262557c05187c3e1c582da7b85d18193166c0efac109fc5402b53d7711c9a36cce94085512836a904dba4042dfa39fc5dd523cdfa82e4da

      Download Submit

    • memory/2540-0-0x000007FEF5583000-0x000007FEF5584000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2540-1-0x00000000013B0000-0x00000000013C0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2540-2-0x000007FEF5580000-0x000007FEF5F6C000-memory.dmp

      Filesize

      9.9MB

      Download

    • memory/2540-30-0x000007FEF5583000-0x000007FEF5584000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2540-31-0x000007FEF5580000-0x000007FEF5F6C000-memory.dmp

      Filesize

      9.9MB

      Download

    • memory/2748-14-0x000000001B190000-0x000000001B472000-memory.dmp

      Filesize

      2.9MB

      Download

    • memory/2748-15-0x00000000026E0000-0x00000000026E8000-memory.dmp

      Filesize

      32KB

      Download

    • memory/2756-7-0x000000001B310000-0x000000001B5F2000-memory.dmp

      Filesize

      2.9MB

      Download

    • memory/2756-8-0x0000000002490000-0x0000000002498000-memory.dmp

      Filesize

      32KB

      Download