xworm | 1e2b4afcf60882d7c8818552b5f885d2f1f21a871aa212afbe5b27129bc7076c

Analysis

max time kernel
148s
max time network
145s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
13/09/2026, 14:27

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
c1bba56272310ef2b72d468b811c85cca4b0df44107308c4cb6d2f041ae4734e_pre-append.js
Size 346KB
Sample260913-rskbmsgq5x
SHA256 1e2b4afcf60882d7c8818552b5f885d2f1f21a871aa212afbe5b27129bc7076c
MD5 df55026b2d1bd6d2dcbc3cdf1da905b3
SHA1 0efd524c7b3d1e5fcff4f9d2ba9b12ad9405e490
SHA512 7c57cd8832b8b4a6b40603a16ba3e223e06a6ef5be9347c02d97672a53953051042fe45bac7b2ae2bba9025eee60acc8801d6f2f093548a952687f85ddc00587
SSDEEP 6144:cscVzfzLci7ypEC6DLB930zTUbWYO3VgTVoeDmTkzljZ+d3O9VNOz:csWzLLciCEC6DL3kUbWPJ8fzljZ+C6
TLSH
T19074DF00DE84359B475C743AB8FB646E83696A01518F7781757BFE99FABC300719B82C
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery execution xworm persistence privilege_escalation rat trojan

Malware Config

Extracted

Family

xworm

Version

198.23.177.219:4445

Mutex

xD43mP0EKnMjTBMj

Attributes

Install_directory
%ProgramData%
install_file
XWormClient.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
behavioral2/memory/3696-22-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2876	powershell.exe

Creates a file in the Startup directory 1 TTPs 2 IoCs

A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

persistence privilege_escalation

Registry Run Keys / Startup Folder

T1547.001

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XWormClient.lnk	Aspnet_compiler.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XWormClient.lnk	Aspnet_compiler.exe

Executes dropped EXE 1 IoCs

pid	Process
5912	XWormClient.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2876 set thread context of 3696	2876	powershell.exe	89

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 2 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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	XWormClient.exe

Kills process with taskkill 1 IoCs

defense_evasion

pid	Process
5972	taskkill.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2876	powershell.exe
2876	powershell.exe
2876	powershell.exe
2876	powershell.exe
2876	powershell.exe
2876	powershell.exe
2876	powershell.exe
2876	powershell.exe
2876	powershell.exe
2876	powershell.exe
2876	powershell.exe
2876	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2876	powershell.exe
Token: SeDebugPrivilege	3696	Aspnet_compiler.exe
Token: SeDebugPrivilege	5972	taskkill.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3360 wrote to memory of 2876	3360	wscript.exe	87
PID 2876 wrote to memory of 3696	2876	powershell.exe	89
PID 2876 wrote to memory of 3696	2876	powershell.exe	89
PID 2876 wrote to memory of 3696	2876	powershell.exe	89
PID 2876 wrote to memory of 3696	2876	powershell.exe	89
PID 2876 wrote to memory of 3696	2876	powershell.exe	89
PID 3360 wrote to memory of 5972	3360	wscript.exe	94

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\c1bba56272310ef2b72d468b811c85cca4b0df44107308c4cb6d2f041ae4734e_pre-append.js
1⤵
- Suspicious use of WriteProcessMemory
PID:3360
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -ExecutionPolicy Bypass -NoProfile -WindowStyle Hidden -File "C:\Temp\ps_T83GhxvUV6dq_1789319262542.ps1"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2876
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe"
    3⤵
    - Creates a file in the Startup directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:3696
- C:\Windows\System32\taskkill.exe
  "C:\Windows\System32\taskkill.exe" /f /im wscript.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:5972

C:\PROGRA~3\XWormClient.exe
C:\PROGRA~3\XWORMC~1.EXE
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:5912

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

PowerShell

T1059.001

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

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

XWormClient.exe

Path C:\ProgramData\XWormClient.exe
Size 48KB
SHA256 923c541ce782bf45a3d338487e6f411cd11ab0b98eb9775a2d2065dff39a4f37
MD5 7835ac3587533a4c407164a221390881
SHA1 4494150264b431068cc9d7ced0949f92545277c6
SHA512 b1ecf29f743fe039a8c61f0fd77559a81a100cd060337cee9cc43a0cadd6df0ba7ed7386906d3b1d1ea6d2538bf649af8bcab79ab564a41bac624c0454eeb6c7
SSDEEP 768:pFcAS6TP8ZeM8cKkf85d/50V6Iq85dqf7PzZDeN4EWF//dj9z94:pmAPkfOd/508GODeN4EWZz94
TLSH
T11B23D728A7E81316F6BB47B099F5D083AA76B5436E75C74D388A434D0B237C08953F7A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ps_T83GhxvUV6dq_1789319262542.ps1

Path C:\Temp\ps_T83GhxvUV6dq_1789319262542.ps1
Size 232KB
SHA256 5ab48ef5b6f2e523eb6ef80e7845bd3175ee1f7e23d107f1c439080306bc268d
MD5 056358888e6806c2943804fa10026312
SHA1 1cf123cb0260d73b16b87bf1360be8e64b2c563f
SHA512 d54fe3bed2204458e53bff1e3d6724d2bac4851360dacd9647b54db1d27f4b411ce8e95e2d84055b958d62f1914acaf0dd8e9ab64a9260d62b5072521ea1c63a
SSDEEP 3072:sQjFzjuzllwsHBg8RHyLtaX26vf/NSVmV/ptQKzN+3yjwg+bWESpkbm0Ms5KOag1:1hzklZXHyhaX8mhQK0fWCm1sJd
TLSH
T18E347DC50F42B9476A2E1586A1F352C456F9373FF1CA3B316D239E208AB50DE662C72D
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2876-17-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp

Download

memory/2876-16-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp

Download

memory/2876-7-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp

Download

memory/2876-8-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp

Download

memory/2876-19-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp

Download

memory/2876-3-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp

Download

memory/2876-11-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp

Download

memory/2876-12-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp

Download

memory/2876-13-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp

Download

memory/2876-14-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp

Download

memory/2876-15-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp

Download

memory/2876-2-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp

Download

memory/2876-5-0x000001C8C0720000-0x000001C8C0742000-memory.dmp

Download

memory/2876-38-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp

Download

memory/2876-10-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp

Download

memory/2876-20-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp

Download

memory/2876-21-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp

Download

memory/2876-36-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp

Download

memory/2876-35-0x00007FFB01FA0000-0x00007FFB02944000-memory.dmp

Download

memory/2876-1-0x00007FFB0212F000-0x00007FFB02130000-memory.dmp

Download

memory/2876-18-0x000001C8C06F0000-0x000001C8C0706000-memory.dmp

Download

memory/3696-24-0x00000000744F2000-0x00000000744F3000-memory.dmp

Download

memory/3696-29-0x00000000744E0000-0x0000000074C9C000-memory.dmp

Download

memory/3696-23-0x0000000005040000-0x00000000050DC000-memory.dmp

Download

memory/3696-22-0x0000000000400000-0x000000000040E000-memory.dmp

Download

memory/3696-37-0x00000000744E0000-0x0000000074C9C000-memory.dmp

Download

memory/5912-32-0x0000000000D50000-0x0000000000D60000-memory.dmp

Download

memory/5912-33-0x0000000005B80000-0x00000000060AC000-memory.dmp

Download