xworm | 1e2b4afcf60882d7c8818552b5f885d2f1f21a871aa212afbe5b27129bc7076c

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
13/09/2026, 14:27

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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
behavioral1/memory/5436-16-0x0000000000400000-0x000000000040E000-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
5736	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2091445952-3649787497-104050984-1000\Control Panel\International\Geo\Nation	wscript.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 opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XWormClient.lnk	Aspnet_compiler.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XWormClient.lnk	Aspnet_compiler.exe

Executes dropped EXE 1 IoCs

pid	Process
4704	XWormClient.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5736 set thread context of 5436	5736	powershell.exe	90

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
1596	taskkill.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
5736	powershell.exe
5736	powershell.exe
5736	powershell.exe
5736	powershell.exe
5736	powershell.exe
5736	powershell.exe
5736	powershell.exe
5736	powershell.exe
5736	powershell.exe
5736	powershell.exe
5736	powershell.exe
5736	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5736	powershell.exe
Token: SeDebugPrivilege	5436	Aspnet_compiler.exe
Token: SeDebugPrivilege	1596	taskkill.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 5736	2128	wscript.exe	88
PID 5736 wrote to memory of 5436	5736	powershell.exe	90
PID 5736 wrote to memory of 5436	5736	powershell.exe	90
PID 5736 wrote to memory of 5436	5736	powershell.exe	90
PID 5736 wrote to memory of 5436	5736	powershell.exe	90
PID 5736 wrote to memory of 5436	5736	powershell.exe	90
PID 2128 wrote to memory of 1596	2128	wscript.exe	96

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\c1bba56272310ef2b72d468b811c85cca4b0df44107308c4cb6d2f041ae4734e_pre-append.js
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -ExecutionPolicy Bypass -NoProfile -WindowStyle Hidden -File "C:\Temp\ps_cipD9ZeSEx5O_1789319381705.ps1"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5736
- - 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:5436
- C:\Windows\System32\taskkill.exe
  "C:\Windows\System32\taskkill.exe" /f /im wscript.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:1596

C:\PROGRA~3\XWormClient.exe
C:\PROGRA~3\XWORMC~1.EXE
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4704

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

XWormClient.exe

Path C:\ProgramData\XWormClient.exe
Size 55KB
SHA256 99a2c778c9a6486639d0aff1a7d2d494c2b0dc4c7913ebcb7bfea50a2f1d0b09
MD5 fda8c8f2a4e100afb14c13dfcbcab2d2
SHA1 19dfd86294c4a525ba21c6af77681b2a9bbecb55
SHA512 94f0ace37cae77be9935cf4fc8aaa94691343d3b38de5e16c663b902c220bff513cd02256c7af2d815a23dd30439582ddbb0880009c76bbf36ff8fbc1a6ddc18
SSDEEP 768:fF9E8FLLs2Zokf85d9PTV6Iq8Fnqf7P+WxqWKnz8DH:ffE6EkfOd9PT86dWvKgb
TLSH
T1C943D82897F81316F6FB4BB059F5D483A93AB5536E34C74D388A534D0B237C18A52B3A
MD5 SHA1 SHA512 SSDEEP TLSH

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ps_cipD9ZeSEx5O_1789319381705.ps1

Path C:\Temp\ps_cipD9ZeSEx5O_1789319381705.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

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__PSScriptPolicyTest_grb2xri5.xn5.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_grb2xri5.xn5.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

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memory/4704-27-0x00000000058C0000-0x0000000005DEC000-memory.dmp

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memory/4704-25-0x0000000000C20000-0x0000000000C30000-memory.dmp

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memory/5436-17-0x00000000054C0000-0x000000000555C000-memory.dmp

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memory/5436-30-0x0000000002F20000-0x0000000002F30000-memory.dmp

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memory/5436-16-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/5736-13-0x0000024CB3B30000-0x0000024CB3B46000-memory.dmp

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memory/5736-4-0x0000024CCC0D0000-0x0000024CCC0F2000-memory.dmp

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memory/5736-15-0x0000024CCC100000-0x0000024CCC116000-memory.dmp

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memory/5736-14-0x0000024CCC110000-0x0000024CCC120000-memory.dmp

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memory/5736-2-0x0000024CCC110000-0x0000024CCC120000-memory.dmp

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memory/5736-18-0x0000024CCC110000-0x0000024CCC120000-memory.dmp

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memory/5736-26-0x0000024CCC110000-0x0000024CCC120000-memory.dmp

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memory/5736-12-0x0000024CCC110000-0x0000024CCC120000-memory.dmp

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memory/5736-29-0x0000024CCC110000-0x0000024CCC120000-memory.dmp

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memory/5736-1-0x0000024CCC110000-0x0000024CCC120000-memory.dmp

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