xworm | a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9

Analysis

max time kernel
148s
max time network
151s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
09/08/2026, 19:01

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General

Target
a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe
Size 785KB
Sample260809-xpff6sxtcz
SHA256 a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9
MD5 f3274d6f39347910d553b6dffa6364bf
SHA1 d93b79355ddf624e112a2fd3644ea5d66a36dbe9
SHA512 64f876012364e1f469b9c7cdc5c70853d0dd5d698f22feba9beeb46c487d0ee2e3edfe9c3550b5a32bbb6203a5e6e0b25f7f79ad6c2c5ab2b833fc0251d76992
SSDEEP 12288:f4MGApapyjt6Wh/VojGI5NV2bFsBtWHA9H1EK3w4ASZzbZRT9ehbyAZlXBWnC:S86Wh/GjJNVOF7HaH1elSZ/+b5ZfW
TLSH
T1C70502043365DB07E99563B81872F67413BA7E9EB411E21A8FE4AEEF7526F804D04363
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery execution xworm persistence privilege_escalation rat trojan

Malware Config

Extracted

Family

xworm

Version

XWorm V7.1

81.90.31.12:9438

Attributes

Install_directory
%AppData%
install_file
XWormClient.exe

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/3284-12-0x0000000000400000-0x0000000000416000-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
2928	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	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XWormClient.lnk	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe

Executes dropped EXE 3 IoCs

pid	Process
5360	JZEocNxnVffvo.exe
4968	JZEocNxnVffvo.exe
1204	JZEocNxnVffvo.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-1-5-21-552508041-2681165170-3229858294-1000\Software\Microsoft\Windows\CurrentVersion\Run\JZEocNxnVffvo = "\"C:\\Windows\\system32\\WindowsPowerShell\\v1.0\\powershell.exe\" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -File \"C:\\Users\\Admin\\AppData\\Local\\Temp\\duw1hakv2a0.ps1\""	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5000 set thread context of 3284	5000	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe	89
PID 5360 set thread context of 1204	5360	JZEocNxnVffvo.exe	94

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 4 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	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JZEocNxnVffvo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JZEocNxnVffvo.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
5000	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe
5000	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe
2928	powershell.exe
2928	powershell.exe
5360	JZEocNxnVffvo.exe
5360	JZEocNxnVffvo.exe
5360	JZEocNxnVffvo.exe
5360	JZEocNxnVffvo.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	5000	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe
Token: SeDebugPrivilege	3284	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe
Token: SeDebugPrivilege	2928	powershell.exe
Token: SeDebugPrivilege	5360	JZEocNxnVffvo.exe
Token: SeDebugPrivilege	1204	JZEocNxnVffvo.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 5000 wrote to memory of 3284	5000	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe	89
PID 5000 wrote to memory of 3284	5000	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe	89
PID 5000 wrote to memory of 3284	5000	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe	89
PID 5000 wrote to memory of 3284	5000	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe	89
PID 5000 wrote to memory of 3284	5000	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe	89
PID 2928 wrote to memory of 5360	2928	powershell.exe	92
PID 5360 wrote to memory of 4968	5360	JZEocNxnVffvo.exe	93
PID 5360 wrote to memory of 1204	5360	JZEocNxnVffvo.exe	94
PID 5360 wrote to memory of 1204	5360	JZEocNxnVffvo.exe	94
PID 5360 wrote to memory of 1204	5360	JZEocNxnVffvo.exe	94
PID 5360 wrote to memory of 1204	5360	JZEocNxnVffvo.exe	94
PID 5360 wrote to memory of 1204	5360	JZEocNxnVffvo.exe	94

C:\Users\Admin\AppData\Local\Temp\a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe
"C:\Users\Admin\AppData\Local\Temp\a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5000
- C:\Users\Admin\AppData\Local\Temp\a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe
  "C:\Users\Admin\AppData\Local\Temp\a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe"
  2⤵
  - Creates a file in the Startup directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3284

C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -File "C:\Users\Admin\AppData\Local\Temp\duw1hakv2a0.ps1"
1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2928
- C:\Users\Admin\AppData\Roaming\JZEocNxnVffvo.exe
  "C:\Users\Admin\AppData\Roaming\JZEocNxnVffvo.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5360
- - C:\Users\Admin\AppData\Roaming\JZEocNxnVffvo.exe
    "C:\Users\Admin\AppData\Roaming\JZEocNxnVffvo.exe"
    3⤵
    - Executes dropped EXE
    PID:4968
- - C:\Users\Admin\AppData\Roaming\JZEocNxnVffvo.exe
    "C:\Users\Admin\AppData\Roaming\JZEocNxnVffvo.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:1204

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k GPSvcGroup
1⤵
PID:1044

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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

Modify Registry

T1112

Credential Access

Discovery

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

duw1hakv2a0.ps1

Path C:\Users\Admin\AppData\Local\Temp\duw1hakv2a0.ps1
Size 1KB
SHA256 499334d00462f698f56ac8694f923405c1d85859f21cdecc34bb7aaf3272d6af
MD5 6aacec44f105033671e7ac029b8b6ccf
SHA1 fde01d50e135b7fe561575efb923570bdddc24c8
SHA512 24274031365f9b70e6ced6c17c2c0996d86f59cf7d2b7c100ab695c06473d4891e69815ee3f6365b37cc9b4835c7c9aa979e41e74da83948f30a8914cd017389
TLSH
T1C921270B8E8943C6006443F1460371CDB66E91DB6B7F019055EDB4EDB32BE23386ADE9
MD5 SHA1 SHA512 TLSH

Submit Download

JZEocNxnVffvo.exe

Path C:\Users\Admin\AppData\Roaming\JZEocNxnVffvo.exe
Size 785KB
SHA256 a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9
MD5 f3274d6f39347910d553b6dffa6364bf
SHA1 d93b79355ddf624e112a2fd3644ea5d66a36dbe9
SHA512 64f876012364e1f469b9c7cdc5c70853d0dd5d698f22feba9beeb46c487d0ee2e3edfe9c3550b5a32bbb6203a5e6e0b25f7f79ad6c2c5ab2b833fc0251d76992
SSDEEP 12288:f4MGApapyjt6Wh/VojGI5NV2bFsBtWHA9H1EK3w4ASZzbZRT9ehbyAZlXBWnC:S86Wh/GjJNVOF7HaH1elSZ/+b5ZfW
TLSH
T1C70502043365DB07E99563B81872F67413BA7E9EB411E21A8FE4AEEF7526F804D04363
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2928-27-0x00007FFA7A910000-0x00007FFA7B2B4000-memory.dmp

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memory/2928-16-0x00007FFA7A910000-0x00007FFA7B2B4000-memory.dmp

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memory/2928-23-0x00007FFA7A910000-0x00007FFA7B2B4000-memory.dmp

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memory/2928-22-0x00007FFA7A910000-0x00007FFA7B2B4000-memory.dmp

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memory/2928-33-0x00007FFA7A910000-0x00007FFA7B2B4000-memory.dmp

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memory/2928-30-0x00007FFA7A910000-0x00007FFA7B2B4000-memory.dmp

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memory/2928-29-0x00007FFA7A910000-0x00007FFA7B2B4000-memory.dmp

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memory/2928-28-0x00007FFA7A910000-0x00007FFA7B2B4000-memory.dmp

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memory/2928-17-0x00007FFA7A910000-0x00007FFA7B2B4000-memory.dmp

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memory/2928-21-0x00007FFA7A910000-0x00007FFA7B2B4000-memory.dmp

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memory/2928-25-0x00007FFA7A910000-0x00007FFA7B2B4000-memory.dmp

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memory/2928-26-0x00007FFA7A910000-0x00007FFA7B2B4000-memory.dmp

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memory/2928-15-0x00007FFA7AA9F000-0x00007FFA7AAA0000-memory.dmp

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memory/2928-18-0x00000144E7B80000-0x00000144E7BA2000-memory.dmp

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memory/3284-13-0x0000000074800000-0x0000000074FBC000-memory.dmp

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memory/3284-12-0x0000000000400000-0x0000000000416000-memory.dmp

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memory/3284-38-0x0000000005880000-0x0000000005890000-memory.dmp

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memory/3284-40-0x0000000074800000-0x0000000074FBC000-memory.dmp

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memory/5000-10-0x0000000006B40000-0x0000000006BE8000-memory.dmp

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memory/5000-2-0x0000000005380000-0x000000000593A000-memory.dmp

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memory/5000-3-0x0000000004E60000-0x0000000004EF2000-memory.dmp

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memory/5000-14-0x0000000074800000-0x0000000074FBC000-memory.dmp

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memory/5000-0-0x0000000074812000-0x0000000074813000-memory.dmp

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memory/5000-9-0x0000000074800000-0x0000000074FBC000-memory.dmp

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memory/5000-8-0x0000000074812000-0x0000000074813000-memory.dmp

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memory/5000-7-0x0000000004FD0000-0x0000000004FE6000-memory.dmp

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memory/5000-1-0x00000000001F0000-0x00000000002BA000-memory.dmp

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memory/5000-6-0x0000000074800000-0x0000000074FBC000-memory.dmp

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memory/5000-5-0x0000000004FF0000-0x000000000508C000-memory.dmp

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memory/5000-4-0x0000000004DE0000-0x0000000004DEA000-memory.dmp

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memory/5360-39-0x0000000005920000-0x0000000005936000-memory.dmp

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