Overview

overview

10

Static

static

10

Windows Sh...st.exe

windows7-x64

10

Windows Sh...st.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    25s
  • max time network
    25s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    13-11-2024 13:59

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General

  • Target

    Windows Shell Experience Host.exe

  • Size

    86KB

  • MD5

    17f122079462e212871a1e2eb20eaff9

  • SHA1

    349e4b54323acce835916a2bbe40dc9c5d30931f

  • SHA256

    f483197df60b8767d23fa820efaab0c6bcc3a4b02ebee3c8f1290ef699f6697e

  • SHA512

    95548cb30e9e45c4024be181253200d2188b622754158f6268fa09e41327dbb8468399a1b5ddd9d868413638bf1b9b18f6814586530f2c6a0a6cbd6311234e94

  • SSDEEP

    768:NG9nICDiZGhCMhOB0s1SbiFG9Ox7h86BOMhUL02dC+IHZK:NgICDiZQRhVeFG9e7h86BOM+Nd6c

Score
10/10
xwormexecutionpersistencerattrojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

147.185.221.20:65300

Mutex

RMe1pa1UgjNcB2Un

Attributes
  • Install_directory

    %AppData%

  • install_file

    Windows Shell Experience Host.exe

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm
  • Xworm family
    xworm
  • 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
  • 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).

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Windows Shell Experience Host.exe
    "C:\Users\Admin\AppData\Local\Temp\Windows Shell Experience Host.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:2688
    • 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\Windows Shell Experience Host.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2876
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Windows Shell Experience Host.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2612
    • 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 Shell Experience Host.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3036
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Windows Shell Experience Host.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1924

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

    d32aa06050a0f81644fb29aee2c76048

    SHA1

    870cacf366bd64dbc8323f529175da3268eada81

    SHA256

    9bc74a59e4937d01e4913928b49b0e8f84d91baa10cfe44124dd04c4138ade45

    SHA512

    ed24ca0d2359af5ff086adea084dac80796cfb7666e903db2ba5ff80860144bf5e547a5edf19f228445b83848e41a008500a13d51361b3e122889aa7f3c77e67

    Download Submit

  • memory/2612-17-0x000000001B7B0000-0x000000001BA92000-memory.dmp

    Filesize

    2.9MB

    Download

  • memory/2612-18-0x0000000001DA0000-0x0000000001DA8000-memory.dmp

    Filesize

    32KB

    Download

  • memory/2688-0-0x000007FEF5983000-0x000007FEF5984000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2688-1-0x0000000000B80000-0x0000000000B9A000-memory.dmp

    Filesize

    104KB

    Download

  • memory/2688-2-0x000007FEF5980000-0x000007FEF636C000-memory.dmp

    Filesize

    9.9MB

    Download

  • memory/2688-3-0x000007FEF5983000-0x000007FEF5984000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2688-4-0x000007FEF5980000-0x000007FEF636C000-memory.dmp

    Filesize

    9.9MB

    Download

  • memory/2876-9-0x0000000002970000-0x00000000029F0000-memory.dmp

    Filesize

    512KB

    Download

  • memory/2876-10-0x000000001B680000-0x000000001B962000-memory.dmp

    Filesize

    2.9MB

    Download

  • memory/2876-11-0x00000000022A0000-0x00000000022A8000-memory.dmp

    Filesize

    32KB

    Download