Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/10/2024, 03:20

General

  • Target

    WizClient2.exe

  • Size

    75KB

  • MD5

    f19b33379b749f757bb47c0866af8808

  • SHA1

    a6c2232d04376cbe0ce75ac09bd7d86477b4a5da

  • SHA256

    2aebedd83903b137349f36ffb767c5ddfaa5aa0168b980203895546fe71f2103

  • SHA512

    c19b8b2ea1f93e4d0639aabad12bed369ae6cf198f5b0d8d471c64a1cbcec4a1837ce93c5cbc86ee6a68bca440cb2c0fa8fe5e7e963c18165ffa3ab01e173a11

  • SSDEEP

    1536:pfJ0uhhgY+OGijd//2TJ17MZab2p7gSb3NzuNU5/nU6i6JbKcOOLepntw:pfJ0mYOGijd/eV1mab2Bjb3NzaU5FZOq

Malware Config

Extracted

Family

xworm

C2

fe80::edf5:92cd:756d:3fbd%9:5552

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

Signatures

  • Detect Xworm Payload 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 3 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of SetWindowsHookEx 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:\Users\Admin\AppData\Local\Temp\WizClient2.exe
    "C:\Users\Admin\AppData\Local\Temp\WizClient2.exe"
    1⤵
    • Checks computer location settings
    • 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:3784
    • 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\WizClient2.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2144
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'WizClient2.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1316
    • 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\WizClient2.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1276
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "WizClient2" /tr "C:\Users\Admin\AppData\Roaming\WizClient2.exe"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:4488
  • C:\Users\Admin\AppData\Roaming\WizClient2.exe
    C:\Users\Admin\AppData\Roaming\WizClient2.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1280
  • C:\Users\Admin\AppData\Roaming\WizClient2.exe
    C:\Users\Admin\AppData\Roaming\WizClient2.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3600
  • C:\Users\Admin\AppData\Roaming\WizClient2.exe
    C:\Users\Admin\AppData\Roaming\WizClient2.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3428

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\WizClient2.exe.log

          Filesize

          654B

          MD5

          2ff39f6c7249774be85fd60a8f9a245e

          SHA1

          684ff36b31aedc1e587c8496c02722c6698c1c4e

          SHA256

          e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

          SHA512

          1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

          Filesize

          2KB

          MD5

          d85ba6ff808d9e5444a4b369f5bc2730

          SHA1

          31aa9d96590fff6981b315e0b391b575e4c0804a

          SHA256

          84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

          SHA512

          8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

          Filesize

          944B

          MD5

          6d3e9c29fe44e90aae6ed30ccf799ca8

          SHA1

          c7974ef72264bbdf13a2793ccf1aed11bc565dce

          SHA256

          2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

          SHA512

          60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

          Filesize

          944B

          MD5

          1337a6d548829ee23cdd9a8fd7d8d63d

          SHA1

          e90dd79e4b0ff72962287f52a7b81e8f158e8abb

          SHA256

          a0025cdf7f56b2916791152d8e800cafc204e0158ac25b5a9f27ea1d13602b50

          SHA512

          454eac0196636936ad0c5a40e3db8b2b883b25c486a241e484817bc06ec4d20ed617a7bd506ff4762f62760f0fb20b59374257e09b86ae6a8d8959ec7507921b

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gu1fxyss.w32.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Roaming\WizClient2.exe

          Filesize

          75KB

          MD5

          f19b33379b749f757bb47c0866af8808

          SHA1

          a6c2232d04376cbe0ce75ac09bd7d86477b4a5da

          SHA256

          2aebedd83903b137349f36ffb767c5ddfaa5aa0168b980203895546fe71f2103

          SHA512

          c19b8b2ea1f93e4d0639aabad12bed369ae6cf198f5b0d8d471c64a1cbcec4a1837ce93c5cbc86ee6a68bca440cb2c0fa8fe5e7e963c18165ffa3ab01e173a11

        • memory/2144-12-0x00007FFC2E370000-0x00007FFC2EE31000-memory.dmp

          Filesize

          10.8MB

        • memory/2144-17-0x00007FFC2E370000-0x00007FFC2EE31000-memory.dmp

          Filesize

          10.8MB

        • memory/2144-14-0x00007FFC2E370000-0x00007FFC2EE31000-memory.dmp

          Filesize

          10.8MB

        • memory/2144-13-0x00007FFC2E370000-0x00007FFC2EE31000-memory.dmp

          Filesize

          10.8MB

        • memory/2144-11-0x00000224C75C0000-0x00000224C75E2000-memory.dmp

          Filesize

          136KB

        • memory/3784-0-0x00007FFC2E373000-0x00007FFC2E375000-memory.dmp

          Filesize

          8KB

        • memory/3784-49-0x00007FFC2E373000-0x00007FFC2E375000-memory.dmp

          Filesize

          8KB

        • memory/3784-50-0x00007FFC2E370000-0x00007FFC2EE31000-memory.dmp

          Filesize

          10.8MB

        • memory/3784-53-0x00007FFC2E370000-0x00007FFC2EE31000-memory.dmp

          Filesize

          10.8MB

        • memory/3784-1-0x0000000000030000-0x000000000004A000-memory.dmp

          Filesize

          104KB