xworm | 3a10e565b3abaf29a325105df130598b366056b80a37028b8420e31dc6f13d3c

Analysis

user interaction
yes
max time kernel
149s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
29/09/2026, 15:17

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General

Target
DERECHO DE PETICION_PDF.js
Size 63KB
Sample260929-spdkcsvxav
SHA256 3a10e565b3abaf29a325105df130598b366056b80a37028b8420e31dc6f13d3c
MD5 26340062bca8f7ebdb7244a79c83ce24
SHA1 ec92f525b84c263452f5dd52a99ee9c28bbd0108
SHA512 538a8fa55867d7f353686c764d3e812c73f262e1816b503bcd40552f47897eb598f753e0cd48f3091d3ae16dd3ac5f481765820ff7e53bc61d0d576da9f43a01
SSDEEP 768:BLZBIfsKrmG1Rzu7ZtLmemG94sMS+iY88x4TsVivl5i3QSJqccJPh31v8g:BLZEu/7h4j88x4TsY
TLSH
T1A5531056E3DB416E92C872E3E186A23D9BBE4017001179B3627A539EFF58CF06077672
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery execution xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

77.110.114.115:3008

Mutex

J7P3zomJSvIMVoxX

Attributes

install_file
USB.exe

aes.plain

Signatures

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

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/memory/652-21-0x000002D585D20000-0x000002D585D2E000-memory.dmp	family_xworm
behavioral1/memory/652-23-0x000002D585D20000-0x000002D585D2E000-memory.dmp	family_xworm

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3924	744	cmd.exe	92

Badlisted process makes network request 3 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
25	3836	powershell.exe
27	3836	powershell.exe
30	3836	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2716	powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-895009113-1202185046-1686627690-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bagknjmidb = "\"C:\\ProgramData\\WinUpdate.js\""	powershell.exe

Enumerates connected drives 3 TTPs 2 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

ioc	Process
\??\F:\	powershell.exe
\??\F:\	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3836 set thread context of 652	3836	powershell.exe	110

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007

Executes a command shell one-liner 1 TTPs 2 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
3924	cmd.exe
4928	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	wscript.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	wscript.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	RegAsm.exe

Kills process with taskkill 3 IoCs

defense_evasion

pid	Process
3644	taskkill.exe
1408	taskkill.exe
5116	taskkill.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
3836	powershell.exe
3836	powershell.exe
3836	powershell.exe
2716	powershell.exe
2716	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3836	powershell.exe
Token: SeDebugPrivilege	2716	powershell.exe
Token: SeDebugPrivilege	3644	taskkill.exe
Token: SeDebugPrivilege	1408	taskkill.exe
Token: SeDebugPrivilege	5116	taskkill.exe
Token: SeDebugPrivilege	652	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3924 wrote to memory of 3836	3924	cmd.exe	100
PID 3836 wrote to memory of 2716	3836	powershell.exe	101
PID 2716 wrote to memory of 4928	2716	powershell.exe	104
PID 4928 wrote to memory of 3644	4928	cmd.exe	106
PID 4928 wrote to memory of 1408	4928	cmd.exe	107
PID 4928 wrote to memory of 5116	4928	cmd.exe	108
PID 3836 wrote to memory of 652	3836	powershell.exe	110
PID 3836 wrote to memory of 652	3836	powershell.exe	110
PID 3836 wrote to memory of 652	3836	powershell.exe	110
PID 3836 wrote to memory of 652	3836	powershell.exe	110
PID 3836 wrote to memory of 652	3836	powershell.exe	110
PID 3836 wrote to memory of 652	3836	powershell.exe	110

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\DERECHO DE PETICION_PDF.js"
1⤵
- Reads the TCP/IP host and domain name from the registry
PID:4016

C:\Windows\system32\cmd.exe
cmd /c %SYSTEMROOT%\System32\WindowsPowerShell\v1.0\powershell.exe .($env:ComSpec[4,26,25]-join'') $env:cdrddmeSz; Copy-Item -Path C:\Users\Admin\AppData\Local\Temp\DERECHO DE PETICION_PDF.js -Destination 'C:\ProgramData\WinUpdate.js' -Force
1⤵
- Process spawned unexpected child process
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:3924
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe .($env:ComSpec[4,26,25]-join'') $env:cdrddmeSz; Copy-Item -Path C:\Users\Admin\AppData\Local\Temp\DERECHO DE PETICION_PDF.js -Destination 'C:\ProgramData\WinUpdate.js' -Force
  2⤵
  - Badlisted process makes network request
  - Adds Run key to start application
  - Enumerates connected drives
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3836
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Process cmd.exe -ArgumentList '/c taskkill /IM RegAsm.exe /F & taskkill /IM Vbc.exe /F & taskkill /IM MsBuild.exe /F' -WindowStyle Hidden -Wait
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Enumerates connected drives
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2716
  - - C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe" /c taskkill /IM RegAsm.exe /F & taskkill /IM Vbc.exe /F & taskkill /IM MsBuild.exe /F
      4⤵
      Executes a command shell one-liner
      Suspicious use of WriteProcessMemory
      PID:4928
    - - C:\Windows\system32\taskkill.exe
        
        taskkill /IM RegAsm.exe /F
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:3644
    - - C:\Windows\system32\taskkill.exe
        
        taskkill /IM Vbc.exe /F
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1408
    - - C:\Windows\system32\taskkill.exe
        
        taskkill /IM MsBuild.exe /F
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:5116
- - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe"
    3⤵
    - Reads the TCP/IP host and domain name from the registry
    - Suspicious use of AdjustPrivilegeToken
    PID:652

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

PowerShell

T1059.001

Windows Command Shell

T1059.003

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 2KB
SHA256 b1f292b6199aa29c7fafbca007e5f9e3f68edcbbca1965bc828cc92dc0f18bb8
MD5 6cf293cb4d80be23433eecf74ddb5503
SHA1 24fe4752df102c2ef492954d6b046cb5512ad408
SHA512 0f91e2da0da8794b9797c7b50eb5dfd27bde4546ceb6902a776664ce887dd6f12a0dd8773d612ccc76dfd029cd280778a0f0ae17ce679b3d2ffd968dd7e94a00
TLSH
T148510F323375F1E4C8567F071E68198053BF4395EA94AF5CB298621ED92741B8F222F3
MD5 SHA1 SHA512 TLSH

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 d645f6116c25c3ac3ca73cbb8f11285b8b83ca0ee6e69a0662c2e20e400f8dc1
MD5 01e023ff6ec7edf6c1c75ad552e17cff
SHA1 6750d1b4468c7c5d155b00714bf0d13e6464849d
SHA512 d3da8279c65f2818be69ad36d3b6b03f73df653ae72fe52b53f42af25929d2c4ec0b19463c8f006700e65c15dd132701fbc370d93808aeeb25522541c5589691
TLSH
T13821A627F3DCC921CC8A123A009D9C1176B283C7809ECF9FAFC0D614A0BF988CB21694
MD5 SHA1 SHA512 TLSH

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__PSScriptPolicyTest_k22nzxct.bet.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_k22nzxct.bet.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

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memory/652-21-0x000002D585D20000-0x000002D585D2E000-memory.dmp

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memory/652-23-0x000002D585D20000-0x000002D585D2E000-memory.dmp

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memory/3836-0-0x0000019EEEB70000-0x0000019EEEB80000-memory.dmp

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memory/3836-8-0x0000019ED6570000-0x0000019ED6592000-memory.dmp

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memory/3836-9-0x0000019EEEB70000-0x0000019EEEB80000-memory.dmp

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memory/3836-10-0x0000019ED63D0000-0x0000019ED63E6000-memory.dmp

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memory/3836-11-0x0000019ED63F0000-0x0000019ED63F8000-memory.dmp

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