xworm | a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9

Analysis

max time kernel
150s
max time network
151s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
20/07/2026, 01:48

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General

Target
a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe
Size 785KB
Sample260720-b8es4aev5z
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 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/3816-12-0x0000000000400000-0x0000000000416000-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
1344	powershell.exe

Drops startup file 2 IoCs

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
4128	JZEocNxnVffvo.exe
4324	JZEocNxnVffvo.exe
4560	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-1-5-21-2301830172-776172150-2531349243-1000\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\\yphjiincnzu.ps1\""	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2332 set thread context of 3816	2332	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe	89
PID 4128 set thread context of 4560	4128	JZEocNxnVffvo.exe	95

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 3 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

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2332	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe
2332	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe
1344	powershell.exe
1344	powershell.exe
4128	JZEocNxnVffvo.exe
4128	JZEocNxnVffvo.exe
4128	JZEocNxnVffvo.exe
4128	JZEocNxnVffvo.exe
4128	JZEocNxnVffvo.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2332	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe
Token: SeDebugPrivilege	3816	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe
Token: SeDebugPrivilege	1344	powershell.exe
Token: SeDebugPrivilege	4128	JZEocNxnVffvo.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 3816	2332	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe	89
PID 2332 wrote to memory of 3816	2332	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe	89
PID 2332 wrote to memory of 3816	2332	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe	89
PID 2332 wrote to memory of 3816	2332	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe	89
PID 2332 wrote to memory of 3816	2332	a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe	89
PID 1344 wrote to memory of 4128	1344	powershell.exe	92
PID 4128 wrote to memory of 4324	4128	JZEocNxnVffvo.exe	94
PID 4128 wrote to memory of 4560	4128	JZEocNxnVffvo.exe	95
PID 4128 wrote to memory of 4560	4128	JZEocNxnVffvo.exe	95
PID 4128 wrote to memory of 4560	4128	JZEocNxnVffvo.exe	95
PID 4128 wrote to memory of 4560	4128	JZEocNxnVffvo.exe	95
PID 4128 wrote to memory of 4560	4128	JZEocNxnVffvo.exe	95

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:2332
- C:\Users\Admin\AppData\Local\Temp\a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe
  "C:\Users\Admin\AppData\Local\Temp\a75c6043cb8acb5d73ee6608373e56e376f158585643bad939f04e02bb096ab9.exe"
  2⤵
  - Drops startup file
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3816

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\yphjiincnzu.ps1"
1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1344
- 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:4128
- - C:\Users\Admin\AppData\Roaming\JZEocNxnVffvo.exe
    "C:\Users\Admin\AppData\Roaming\JZEocNxnVffvo.exe"
    3⤵
    - Executes dropped EXE
    PID:4324
- - C:\Users\Admin\AppData\Roaming\JZEocNxnVffvo.exe
    "C:\Users\Admin\AppData\Roaming\JZEocNxnVffvo.exe"
    3⤵
    - Executes dropped EXE
    PID:4560

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k GPSvcGroup
1⤵
PID:6024

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

yphjiincnzu.ps1

Path C:\Users\Admin\AppData\Local\Temp\yphjiincnzu.ps1
Size 1KB
SHA256 9cd8ab19fb754ebefd86e3b750dd2ee1732478efb7abf4e69d1b1a745a9e082b
MD5 3630a912fc3fdb648c1f1e54a366bde9
SHA1 af8b62dcac9af7c0b9d66ba82fce454a5ef89ee5
SHA512 046dd855f15049052b265172b9607079fced122ca02d77097807c3efdff45164cf53080c1c6b934a34951cbf798e2c42db49a0e86c31a6ddb605950946bef09c
TLSH
T1CF21C80B8E8543D6506447F10607B0CCB22EA2DB677F116095EDB5DDB32BD53382ACE4
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/1344-28-0x00007FFBFB650000-0x00007FFBFBFF4000-memory.dmp

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memory/1344-34-0x00007FFBFB650000-0x00007FFBFBFF4000-memory.dmp

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memory/1344-40-0x00007FFBFB650000-0x00007FFBFBFF4000-memory.dmp

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memory/1344-38-0x0000014C73A40000-0x0000014C73ABC000-memory.dmp

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memory/1344-23-0x00007FFBFB650000-0x00007FFBFBFF4000-memory.dmp

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memory/1344-33-0x00007FFBFB650000-0x00007FFBFBFF4000-memory.dmp

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memory/1344-29-0x00007FFBFB650000-0x00007FFBFBFF4000-memory.dmp

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memory/1344-27-0x00007FFBFB650000-0x00007FFBFBFF4000-memory.dmp

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memory/1344-25-0x00007FFBFB650000-0x00007FFBFBFF4000-memory.dmp

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memory/1344-24-0x00007FFBFB650000-0x00007FFBFBFF4000-memory.dmp

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memory/1344-21-0x00007FFBFB650000-0x00007FFBFBFF4000-memory.dmp

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memory/1344-22-0x00007FFBFB650000-0x00007FFBFBFF4000-memory.dmp

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memory/1344-15-0x00007FFBFB7DF000-0x00007FFBFB7E0000-memory.dmp

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memory/1344-16-0x0000014C734B0000-0x0000014C734D2000-memory.dmp

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memory/1344-19-0x00007FFBFB650000-0x00007FFBFBFF4000-memory.dmp

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memory/2332-1-0x0000000000500000-0x00000000005CA000-memory.dmp

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memory/2332-6-0x0000000074800000-0x0000000074FBC000-memory.dmp

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memory/2332-8-0x0000000074812000-0x0000000074813000-memory.dmp

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memory/2332-4-0x00000000050E0000-0x00000000050EA000-memory.dmp

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memory/2332-5-0x00000000052A0000-0x000000000533C000-memory.dmp

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memory/2332-10-0x0000000007920000-0x00000000079C8000-memory.dmp

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memory/2332-9-0x0000000074800000-0x0000000074FBC000-memory.dmp

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memory/2332-2-0x0000000005720000-0x0000000005CDA000-memory.dmp

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memory/2332-3-0x0000000005160000-0x00000000051F2000-memory.dmp

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memory/2332-7-0x0000000005270000-0x0000000005286000-memory.dmp

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memory/2332-14-0x0000000074800000-0x0000000074FBC000-memory.dmp

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memory/2332-0-0x0000000074812000-0x0000000074813000-memory.dmp

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memory/3816-35-0x0000000005C00000-0x0000000005C10000-memory.dmp

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memory/3816-12-0x0000000000400000-0x0000000000416000-memory.dmp

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memory/3816-13-0x0000000074800000-0x0000000074FBC000-memory.dmp

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memory/3816-41-0x0000000074800000-0x0000000074FBC000-memory.dmp

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memory/3816-42-0x0000000005C00000-0x0000000005C10000-memory.dmp

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memory/4128-39-0x0000000005820000-0x0000000005836000-memory.dmp

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