xworm | 3a10e565b3abaf29a325105df130598b366056b80a37028b8420e31dc6f13d3c

Analysis

user interaction
yes
max time kernel
149s
max time network
128s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-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
behavioral2/memory/5808-23-0x000001AC1A300000-0x000001AC1A30E000-memory.dmp	family_xworm
behavioral2/memory/5808-21-0x000001AC1A300000-0x000001AC1A30E000-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	2840	256	cmd.exe	89

Badlisted process makes network request 3 IoCs

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

flow	pid	Process
7	2388	powershell.exe
9	2388	powershell.exe
10	2388	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2992	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-1-5-21-461973139-3212354679-1508698038-1000\Software\Microsoft\Windows\CurrentVersion\Run\ocfFAnSdml = "\"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 2388 set thread context of 5808	2388	powershell.exe	100

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
3888	cmd.exe
2840	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 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

Kills process with taskkill 3 IoCs

defense_evasion

pid	Process
2220	taskkill.exe
3216	taskkill.exe
2028	taskkill.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2388	powershell.exe
2388	powershell.exe
2388	powershell.exe
2388	powershell.exe
2992	powershell.exe
2992	powershell.exe
2992	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2388	powershell.exe
Token: SeDebugPrivilege	2992	powershell.exe
Token: SeDebugPrivilege	3216	taskkill.exe
Token: SeDebugPrivilege	2028	taskkill.exe
Token: SeDebugPrivilege	2220	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2840 wrote to memory of 2388	2840	cmd.exe	92
PID 2388 wrote to memory of 2992	2388	powershell.exe	93
PID 2992 wrote to memory of 3888	2992	powershell.exe	96
PID 3888 wrote to memory of 3216	3888	cmd.exe	98
PID 3888 wrote to memory of 2028	3888	cmd.exe	99
PID 2388 wrote to memory of 5808	2388	powershell.exe	100
PID 2388 wrote to memory of 5808	2388	powershell.exe	100
PID 2388 wrote to memory of 5808	2388	powershell.exe	100
PID 2388 wrote to memory of 5808	2388	powershell.exe	100
PID 2388 wrote to memory of 5808	2388	powershell.exe	100
PID 2388 wrote to memory of 5808	2388	powershell.exe	100
PID 3888 wrote to memory of 2220	3888	cmd.exe	101

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:4864

C:\Windows\system32\cmd.exe
cmd /c %SYSTEMROOT%\System32\WindowsPowerShell\v1.0\powershell.exe .($env:ComSpec[4,26,25]-join'') $env:cdrddmeSz; Copy-Item -Path C:\Users\Admin\AppData\Local\Temp\DERECHO DE PETICION_PDF.js -Destination 'C:\ProgramData\WinUpdate.js' -Force
1⤵
- Process spawned unexpected child process
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:2840
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe .($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:2388
- - 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:2992
  - - 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:3888
    - - C:\Windows\System32\taskkill.exe
        
        taskkill /IM RegAsm.exe /F
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:3216
    - - C:\Windows\System32\taskkill.exe
        
        taskkill /IM Vbc.exe /F
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:2028
    - - C:\Windows\System32\taskkill.exe
        
        taskkill /IM MsBuild.exe /F
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:2220
- - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe"
    3⤵
    PID:5808

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

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 d1a0cb851ac79232036399813a8c90da640eb114bfefadf65109a60c8ecdedba
MD5 8e985e3fdc6fdebb92919104fd9a7ae4
SHA1 581ca6fcf2834894760980a2f66c8c364e98adde
SHA512 c451dbf4a802c11d7497c3d2a29b16351a6ed3fb2dcb6586fb0bc13fd08f0f223adf0af4c7cf88e6902940054b87a1f1009a05ac2c9af51851e63864c79593e0
TLSH
T1D9115733B3DC8624C89A403650CEAC1536B587DB90DECF6BBB84D148B43F599DE61260
MD5 SHA1 SHA512 TLSH

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memory/2388-12-0x00007FFDAAA80000-0x00007FFDAB424000-memory.dmp

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memory/2388-14-0x00007FFDAAA80000-0x00007FFDAB424000-memory.dmp

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memory/2388-5-0x00007FFDAAA80000-0x00007FFDAB424000-memory.dmp

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memory/2388-6-0x00007FFDAAA80000-0x00007FFDAB424000-memory.dmp

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memory/2388-7-0x00007FFDAAA80000-0x00007FFDAB424000-memory.dmp

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memory/2388-8-0x00007FFDAAA80000-0x00007FFDAB424000-memory.dmp

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memory/2388-9-0x00007FFDAAA80000-0x00007FFDAB424000-memory.dmp

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memory/2388-10-0x00007FFDAAA80000-0x00007FFDAB424000-memory.dmp

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memory/2388-11-0x00007FFDAAA80000-0x00007FFDAB424000-memory.dmp

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memory/2388-0-0x00007FFDAAC0F000-0x00007FFDAAC10000-memory.dmp

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memory/2388-3-0x00007FFDAAA80000-0x00007FFDAB424000-memory.dmp

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memory/2388-15-0x00007FFDAAA80000-0x00007FFDAB424000-memory.dmp

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memory/2388-13-0x00007FFDAAA80000-0x00007FFDAB424000-memory.dmp

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memory/2388-16-0x00007FFDAAA80000-0x00007FFDAB424000-memory.dmp

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memory/2388-17-0x000001342C0C0000-0x000001342C0D6000-memory.dmp

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memory/2388-18-0x000001342C0E0000-0x000001342C0E8000-memory.dmp

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memory/2388-4-0x0000013444790000-0x00000134447B2000-memory.dmp

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memory/2388-26-0x00007FFDAAA80000-0x00007FFDAB424000-memory.dmp

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memory/2388-24-0x00007FFDAAA80000-0x00007FFDAB424000-memory.dmp

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memory/5808-21-0x000001AC1A300000-0x000001AC1A30E000-memory.dmp

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memory/5808-23-0x000001AC1A300000-0x000001AC1A30E000-memory.dmp

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