xworm | b37f25845dccefc3919ec843f8fe2f8b761ebe7a16055911e3d116b3e5fe21f5

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
09/07/2026, 17:14

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General

Target
PRO840423SG8_XEZC_1892192.js
Size 2.1MB
Sample260709-vr3clset8m
SHA256 b37f25845dccefc3919ec843f8fe2f8b761ebe7a16055911e3d116b3e5fe21f5
MD5 4499ab60d42d1d8050efde6cf567be8a
SHA1 604b37b713487876b3380cdf67fa26260c342cfc
SHA512 fe5007a85ca95bb93a3ed6c0d34fc4b9a8b8d82d2f576b3a57c37c319fe8ca499c3afbef4235a58b29fa00e11b12f13220a1d3504db0c2adc9a307cdab090653
SSDEEP 192:AbwWBKm05P39UJg97KGn+oyTHIZAUkvlrK:AcWBKm05P39UJg97Kw+oyTHIZAUkvE
TLSH
T1DCA57BD6226FED85D0965603164F525ACEBC46728F1BE39CB90DDFC81028599E2F0CEE
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
behavioral5/memory/4592-13-0x0000000000400000-0x000000000040E000-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	4684	4176	powershell.exe	84

Badlisted process makes network request 2 IoCs

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

flow	pid	Process
6	4684	powershell.exe
10	4684	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4684 set thread context of 4592	4684	powershell.exe	91

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
4684	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	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
4684	powershell.exe
4684	powershell.exe
4684	powershell.exe
4684	powershell.exe
4684	powershell.exe
4684	powershell.exe
4684	powershell.exe
4684	powershell.exe
4684	powershell.exe
4684	powershell.exe
4684	powershell.exe
4684	powershell.exe
4684	powershell.exe
4684	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4684	powershell.exe
Token: SeDebugPrivilege	4592	MSBuild.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4032	conhost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4032 wrote to memory of 2920	4032	conhost.exe	90
PID 4684 wrote to memory of 4592	4684	powershell.exe	91
PID 4684 wrote to memory of 4592	4684	powershell.exe	91
PID 4684 wrote to memory of 4592	4684	powershell.exe	91
PID 4684 wrote to memory of 4592	4684	powershell.exe	91
PID 4684 wrote to memory of 4592	4684	powershell.exe	91

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\PRO840423SG8_XEZC_1892192.js
1⤵
PID:3860

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -NoProfile -Command "Invoke-Expression $env:chourtka"
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:4684
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4592

C:\Windows\system32\conhost.exe
conhost.exe
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4032
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe
  2⤵
  PID:2920

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_2ylsprfc.na0.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2ylsprfc.na0.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/4592-13-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/4592-16-0x0000000005650000-0x00000000056EC000-memory.dmp

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memory/4592-17-0x0000000005D80000-0x0000000005DE6000-memory.dmp

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memory/4592-18-0x0000000006720000-0x00000000067B2000-memory.dmp

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memory/4592-19-0x0000000006D70000-0x0000000007314000-memory.dmp

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memory/4684-0-0x000001E1FB260000-0x000001E1FB270000-memory.dmp

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memory/4684-8-0x000001E1FB1C0000-0x000001E1FB1E2000-memory.dmp

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memory/4684-9-0x000001E1FBC90000-0x000001E1FBD44000-memory.dmp

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memory/4684-10-0x000001E1FB1B0000-0x000001E1FB1BA000-memory.dmp

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memory/4684-11-0x000001E1FB260000-0x000001E1FB270000-memory.dmp

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memory/4684-12-0x000001E1FB260000-0x000001E1FB270000-memory.dmp

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