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Analysis

  • max time kernel
    296s
  • max time network
    296s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/01/2025, 20:38

General

  • Target

    XClient.exe

  • Size

    64KB

  • MD5

    0b825a60d5232c19548fe6bee6eceaf7

  • SHA1

    70b29e65c74ee6d11dd99ab644ea967efd868aa2

  • SHA256

    ad13779dfed42b4f1fc882216a9157bc65aee15f058b784ea809b86fceae34af

  • SHA512

    408f6f6239a4a11913f012d7a6ba8d7c48896312a894d574b892553aeb6658ad1f4599d1cc899beb2e762c6496654077dfbe253e0f4a53d63a5dd1327f1d570a

  • SSDEEP

    1536:ElDBb5dZjeQ+3uYkkf9pWbkoxy061cOirS0LpHn2TfaS:Ell5/7+3uYkkXWbk+jOirS0dHEaS

Malware Config

Extracted

Family

xworm

C2

memory-lottery.gl.at.ply.gg:444

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 4 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 5 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: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 11 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 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\XClient.exe
    "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:972
    • 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\XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3944
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4448
    • 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\security'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3420
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'security'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:736
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "security" /tr "C:\Users\Admin\AppData\Roaming\security"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:4076
  • C:\Users\Admin\AppData\Roaming\security
    C:\Users\Admin\AppData\Roaming\security
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3080
  • C:\Users\Admin\AppData\Roaming\security
    C:\Users\Admin\AppData\Roaming\security
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2388
  • C:\Users\Admin\AppData\Roaming\security
    C:\Users\Admin\AppData\Roaming\security
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1356
  • C:\Users\Admin\AppData\Roaming\security
    C:\Users\Admin\AppData\Roaming\security
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4292
  • C:\Users\Admin\AppData\Roaming\security
    C:\Users\Admin\AppData\Roaming\security
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3172

Network

MITRE ATT&CK Enterprise v15

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Downloads

  • 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\CLR_v4.0\UsageLogs\security.log

    Filesize

    654B

    MD5

    2ff39f6c7249774be85fd60a8f9a245e

    SHA1

    684ff36b31aedc1e587c8496c02722c6698c1c4e

    SHA256

    e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

    SHA512

    1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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

    Filesize

    944B

    MD5

    d28a889fd956d5cb3accfbaf1143eb6f

    SHA1

    157ba54b365341f8ff06707d996b3635da8446f7

    SHA256

    21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

    SHA512

    0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

    Filesize

    944B

    MD5

    2d06ce10e4e5b9e174b5ebbdad300fad

    SHA1

    bcc1c231e22238cef02ae25331320060ada2f131

    SHA256

    87d1dd56f12a88907ba5aebca8d555443d6f77ed214497277cc8bcd31c669f2c

    SHA512

    38cfbeb59605854ae4fcfae8619a6b26bd916148acfb5636383672a3960b45ca41fed5c241f97465129e92eaf78c4c85dcf258f1ab501a2bf771287ce04f76a7

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

    Filesize

    944B

    MD5

    10890cda4b6eab618e926c4118ab0647

    SHA1

    1e1d63b73a0e6c7575f458b3c7917a9ce5ba776d

    SHA256

    00f8a035324d39bd62e6dee5e1b480069015471c487ebee4479e6990ea9ddb14

    SHA512

    a2ee84006c24a36f25e0bca0772430d64e3791f233da916aecdeae6712763e77d55bbbd00dc8f6b2b3887f3c26ab3980b96c5f46cc823e81e28abbbc5fc78221

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_swu5ok5l.3pp.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Roaming\security

    Filesize

    64KB

    MD5

    0b825a60d5232c19548fe6bee6eceaf7

    SHA1

    70b29e65c74ee6d11dd99ab644ea967efd868aa2

    SHA256

    ad13779dfed42b4f1fc882216a9157bc65aee15f058b784ea809b86fceae34af

    SHA512

    408f6f6239a4a11913f012d7a6ba8d7c48896312a894d574b892553aeb6658ad1f4599d1cc899beb2e762c6496654077dfbe253e0f4a53d63a5dd1327f1d570a

  • memory/972-1-0x0000000000910000-0x0000000000926000-memory.dmp

    Filesize

    88KB

  • memory/972-0-0x00007FFCA5843000-0x00007FFCA5845000-memory.dmp

    Filesize

    8KB

  • memory/972-58-0x00007FFCA5840000-0x00007FFCA6301000-memory.dmp

    Filesize

    10.8MB

  • memory/972-57-0x00007FFCA5840000-0x00007FFCA6301000-memory.dmp

    Filesize

    10.8MB

  • memory/972-56-0x00007FFCA5843000-0x00007FFCA5845000-memory.dmp

    Filesize

    8KB

  • memory/3944-12-0x00007FFCA5840000-0x00007FFCA6301000-memory.dmp

    Filesize

    10.8MB

  • memory/3944-18-0x00007FFCA5840000-0x00007FFCA6301000-memory.dmp

    Filesize

    10.8MB

  • memory/3944-15-0x00007FFCA5840000-0x00007FFCA6301000-memory.dmp

    Filesize

    10.8MB

  • memory/3944-14-0x00007FFCA5840000-0x00007FFCA6301000-memory.dmp

    Filesize

    10.8MB

  • memory/3944-13-0x00007FFCA5840000-0x00007FFCA6301000-memory.dmp

    Filesize

    10.8MB

  • memory/3944-2-0x000002ACAA170000-0x000002ACAA192000-memory.dmp

    Filesize

    136KB