xworm | 21327e4b5d555b1adfdea28de614bfd2d3bbbe05bfd849ff2e6019c70e09d117

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
15/07/2026, 16:07

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General

Target
pago.js
Size 2.3MB
Sample260715-tkmsxags2p
SHA256 21327e4b5d555b1adfdea28de614bfd2d3bbbe05bfd849ff2e6019c70e09d117
MD5 19a58a6944ada3c05a3e439390b75119
SHA1 f3b099a78566d464c9fec9ee048f57d29345d15b
SHA512 055644d02d5a651daadc4b4b1cb60fcc9e241b22f562e516a96b2d308ab72c5e7de1e054a2737f40d0c6972f32ea48dbf12b881f3a5e51a4f48853886bdae108
SSDEEP 96:3cKcKcKcKcKcKcKcKcKcKcKcKcKcKcKcKcKcKcKcKcKcKcKcKcKcKcKcKcKcKcKe:r8mxlqjT0rNAVGfBYGuV
TLSH
T1FEB51277B6E60126D1AED7EA24CD9D72C51C80CC36640E8A256FAAE2D32E745CCC74F4
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery execution xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

64.89.162.178:7007

Mutex

lv1iWCBws8ODmePC

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 1 IoCs

resource	yara_rule
behavioral3/memory/4988-13-0x0000000000400000-0x000000000040E000-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	4520	2764	powershell.exe	86

Badlisted process makes network request 2 IoCs

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

flow	pid	Process
6	4520	powershell.exe
9	4520	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4520 set thread context of 4988	4520	powershell.exe	93

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4520	powershell.exe

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	Caspol.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
4520	powershell.exe
4520	powershell.exe
4520	powershell.exe
4520	powershell.exe
4520	powershell.exe
4520	powershell.exe
4520	powershell.exe
4520	powershell.exe
4520	powershell.exe
4520	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4520	powershell.exe
Token: SeDebugPrivilege	4988	Caspol.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
540	conhost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 540 wrote to memory of 4724	540	conhost.exe	91
PID 4520 wrote to memory of 4912	4520	powershell.exe	92
PID 4520 wrote to memory of 4988	4520	powershell.exe	93
PID 4520 wrote to memory of 4988	4520	powershell.exe	93
PID 4520 wrote to memory of 4988	4520	powershell.exe	93
PID 4520 wrote to memory of 4988	4520	powershell.exe	93
PID 4520 wrote to memory of 4988	4520	powershell.exe	93

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\pago.js
1⤵
PID:2220

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -NoProfile -Command "Invoke-Expression $env:apheliotropism"
1⤵
- Process spawned unexpected child process
- Badlisted process makes network request
- Suspicious use of SetThreadContext
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4520
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"
  2⤵
  PID:4912
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4988

C:\Windows\system32\conhost.exe
conhost.exe
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:540
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe
  2⤵
  PID:4724

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

__PSScriptPolicyTest_zbxrll0h.vx2.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zbxrll0h.vx2.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/4520-1-0x000001EAD3DB0000-0x000001EAD3DC0000-memory.dmp

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memory/4520-0-0x000001EAD3DB0000-0x000001EAD3DC0000-memory.dmp

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memory/4520-7-0x000001EAEE4A0000-0x000001EAEE4C2000-memory.dmp

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memory/4520-10-0x000001EAEEA30000-0x000001EAEEAE4000-memory.dmp

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memory/4520-11-0x000001EAD3DF0000-0x000001EAD3DFA000-memory.dmp

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memory/4520-12-0x000001EAD3DB0000-0x000001EAD3DC0000-memory.dmp

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memory/4988-13-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/4988-16-0x0000000005190000-0x000000000522C000-memory.dmp

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memory/4988-17-0x00000000058D0000-0x0000000005936000-memory.dmp

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memory/4988-18-0x0000000006250000-0x00000000062E2000-memory.dmp

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memory/4988-19-0x00000000068A0000-0x0000000006E44000-memory.dmp

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