xworm | 0587d3680378897bb00012fc85cc32a18eeb671ab4165e2c581e668709a24e5a

Analysis

max time kernel
149s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
07/07/2026, 09:53

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General

Target
Purchase Order_invoice0026.xlsm
Size 659KB
Sample260707-lw4lsse17w
SHA256 0587d3680378897bb00012fc85cc32a18eeb671ab4165e2c581e668709a24e5a
MD5 22b35d0e16190ac8b5b527de8261154b
SHA1 3fa23cd404c96ef7425fa5901caeb5fdc294dd0f
SHA512 24f5e6d03f62e4849a435ad8d316a40037c39b0b50adf4b39d7ee8683c86a6dcb739c1e814c9f7528b54671c4cdfb27dcced151a531d471c7f4cd2d5f79a672d
SSDEEP 12288:tUH5g45Ul5QaQZF2A+Dl3ykRg6abVy/jBov5LajTXOKl64D7JjbdFu5J4ZmxwCr1:flgZF5+BxVa8lov5La/XOKl64Bjb7c4q
TLSH
T149E423A6B305BD8FE0A613BE4A0AD1A5F7963CB1B214CFE1E4D463A465A03F75707C84
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery execution xworm persistence rat trojan

Malware Config

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/1076-81-0x0000000000400000-0x000000000041C000-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:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4900	2772	wscript.exe	83

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4472	powershell.exe

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SystemUpdate_ps_XwGSEsq1zxLD_1783418039502.lnk	wscript.exe
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
452	XWormClient.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SystemUpdate_ps_XwGSEsq1zxLD_1783418039502 = "powershell.exe -ExecutionPolicy Bypass -WindowStyle Hidden -File \"C:\\Temp\\ps_XwGSEsq1zxLD_1783418039502.ps1\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SystemUpdate_ps_XwGSEsq1zxLD_1783418039502 = "powershell.exe -ExecutionPolicy Bypass -WindowStyle Hidden -File \"C:\\Temp\\ps_XwGSEsq1zxLD_1783418039502.ps1\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XWormClient = "C:\\Users\\Admin\\AppData\\Roaming\\XWormClient.exe"	aspnet_compiler.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4472 set thread context of 1076	4472	powershell.exe	99

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

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2772	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
4472	powershell.exe
4472	powershell.exe
3968	powershell.exe
3968	powershell.exe
4472	powershell.exe
4472	powershell.exe
4472	powershell.exe
4472	powershell.exe
4472	powershell.exe
4472	powershell.exe
4472	powershell.exe
4472	powershell.exe
4472	powershell.exe
4472	powershell.exe
4472	powershell.exe
4472	powershell.exe
4472	powershell.exe
4472	powershell.exe
4472	powershell.exe
4472	powershell.exe
4472	powershell.exe
4472	powershell.exe
4472	powershell.exe
4472	powershell.exe
4472	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4472	powershell.exe
Token: SeDebugPrivilege	3968	powershell.exe
Token: SeDebugPrivilege	1076	aspnet_compiler.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2772	EXCEL.EXE
2772	EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

pid	Process
2772	EXCEL.EXE
2772	EXCEL.EXE
2772	EXCEL.EXE
2772	EXCEL.EXE
2772	EXCEL.EXE
2772	EXCEL.EXE
2772	EXCEL.EXE
2772	EXCEL.EXE
2772	EXCEL.EXE
2772	EXCEL.EXE
2772	EXCEL.EXE
2772	EXCEL.EXE
2772	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 4900	2772	EXCEL.EXE	88
PID 4900 wrote to memory of 4472	4900	wscript.exe	89
PID 4472 wrote to memory of 3676	4472	powershell.exe	94
PID 4472 wrote to memory of 680	4472	powershell.exe	95
PID 4472 wrote to memory of 2068	4472	powershell.exe	96
PID 4472 wrote to memory of 548	4472	powershell.exe	97
PID 4472 wrote to memory of 2204	4472	powershell.exe	98
PID 4472 wrote to memory of 1076	4472	powershell.exe	99
PID 4472 wrote to memory of 1076	4472	powershell.exe	99
PID 4472 wrote to memory of 1076	4472	powershell.exe	99
PID 4472 wrote to memory of 1076	4472	powershell.exe	99
PID 4472 wrote to memory of 1076	4472	powershell.exe	99

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Purchase Order_invoice0026.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2772
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" "C:\Users\Admin\AppData\Roaming\nuopIMGGWO.js"
  2⤵
  - Process spawned unexpected child process
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:4900
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -ExecutionPolicy Bypass -NoProfile -WindowStyle Hidden -NonInteractive -NoLogo -File "C:\Temp\ps_XwGSEsq1zxLD_1783418039502.ps1"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4472
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
      4⤵
      PID:3676
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
      4⤵
      PID:680
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
      4⤵
      PID:2068
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
      4⤵
      PID:548
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
      4⤵
      PID:2204
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
      4⤵
      Drops startup file
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:1076

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3968

C:\Users\Admin\AppData\Roaming\XWormClient.exe
C:\Users\Admin\AppData\Roaming\XWormClient.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:452

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

Modify Registry

T1112

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

ps_XwGSEsq1zxLD_1783418039502.ps1

Path C:\Temp\ps_XwGSEsq1zxLD_1783418039502.ps1
Size 376KB
SHA256 85e20fd0ef306d1ec805c8b0bb178217cd5170ea1cd8f4e73fc074d07c9e4ad7
MD5 7a25c75da1b9556cacaa8c59398d630e
SHA1 ca51ee18facac3d3b6c2b61c730d7753d225a0ef
SHA512 dfad89555650c07ec9d7e7b5be2f9387495f3af77f669c095e3ffacf6020ca58bd8d19f2287a1a52fdb77eac6bf5715c97717b9e7d9a6b0b78e51ef1a7896a9e
SSDEEP 6144:L/rgxXrsllNRi/N6qiUpzt658Ua0H2ZPonFGaANDA/93Gc8362MaiGk7Fu+a9N5r:L/0r2lNRsTR6mUhWZPoF9SK3b8FTJkBw
TLSH
T1718423006D99B13D6B3EB49CD062E719EB701FEB83659FA423DE15C95228732315E88B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

__PSScriptPolicyTest_ggc3bf5s.shr.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ggc3bf5s.shr.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

b8ab77100df80ab2.customDestinations-ms

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
Size 1KB
SHA256 fb25fd32a9b124eaff58b2c4cf577f963820c2a3157d2f91c93083c6180a9c4b
MD5 243eecd450977d0d11d905ffeaa596f9
SHA1 cf0ce1168c00219960b21837151994d5bcb5cdd3
SHA512 434a9e2df4e9ef5da441399723799a8033bec5dff20cdb11f04b0c9668934d93934a02055512a612cd6009f354e00f4a20a288b174dfcc29d429d426016fb4c5
TLSH
T16141F2020EC76FEBD164C736263B9356E36078029B00A91EA144510F3DB0944DBBDEEF
MD5 SHA1 SHA512 TLSH

Submit Download

XWormClient.exe

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

Submit Download

nuopIMGGWO.js

Path C:\Users\Admin\AppData\Roaming\nuopIMGGWO.js
Size 662KB
SHA256 e3b975ce8212bd41bf76649d72257c9fde906842a675828dbcb726486978b421
MD5 53ba39801ed52f136c413f0517304598
SHA1 10577972fae4e021760126e0a6b385ee347572c5
SHA512 785b2b020267e3c535aedc1136690bd695f89aee36dfb53150a7d2957287b5918e6299339ebd202b98f2b9902eb398991674ebbe3642f99676ebe148d6409d67
SSDEEP 12288:JYU7jJur9Yv7F1hSEVt5smy58/G9r6P22MkbWGGBqunUGyilgqNGDzsKzRbd:JYU7jPVye2OPjPGBqunU0lhNOF
TLSH
T18DE4BF0196C0FC5C47EB5F7A356FB0D9F1AA0CCB2980884AE329FC40F5E6616ED99635
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/452-99-0x0000000005080000-0x00000000055AC000-memory.dmp

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memory/452-98-0x00000000003D0000-0x00000000003E0000-memory.dmp

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memory/1076-84-0x0000000005C20000-0x00000000061C4000-memory.dmp

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memory/1076-83-0x00000000055F0000-0x0000000005656000-memory.dmp

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memory/1076-82-0x0000000005550000-0x00000000055EC000-memory.dmp

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memory/1076-81-0x0000000000400000-0x000000000041C000-memory.dmp

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memory/2772-85-0x00007FF8D9B90000-0x00007FF8D9D85000-memory.dmp

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memory/2772-3-0x00007FF8D9C2D000-0x00007FF8D9C2E000-memory.dmp

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memory/2772-14-0x00007FF8D9B90000-0x00007FF8D9D85000-memory.dmp

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memory/2772-15-0x00007FF8D9B90000-0x00007FF8D9D85000-memory.dmp

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memory/2772-13-0x00007FF8D9B90000-0x00007FF8D9D85000-memory.dmp

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memory/2772-22-0x00007FF8D9B90000-0x00007FF8D9D85000-memory.dmp

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memory/2772-33-0x00007FF8D9B90000-0x00007FF8D9D85000-memory.dmp

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memory/2772-5-0x00007FF899C10000-0x00007FF899C20000-memory.dmp

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memory/2772-6-0x00007FF8D9B90000-0x00007FF8D9D85000-memory.dmp

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memory/2772-137-0x00007FF8D9B90000-0x00007FF8D9D85000-memory.dmp

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memory/2772-7-0x00007FF8D9B90000-0x00007FF8D9D85000-memory.dmp

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memory/2772-135-0x00007FF899C10000-0x00007FF899C20000-memory.dmp

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memory/2772-136-0x00007FF899C10000-0x00007FF899C20000-memory.dmp

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memory/2772-134-0x00007FF899C10000-0x00007FF899C20000-memory.dmp

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memory/2772-133-0x00007FF899C10000-0x00007FF899C20000-memory.dmp

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memory/2772-78-0x00007FF8D9B90000-0x00007FF8D9D85000-memory.dmp

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memory/2772-79-0x000001E443700000-0x000001E44383C000-memory.dmp

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memory/2772-80-0x00007FF8D9B90000-0x00007FF8D9D85000-memory.dmp

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memory/2772-11-0x00007FF897A10000-0x00007FF897A20000-memory.dmp

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memory/2772-8-0x00007FF8D9B90000-0x00007FF8D9D85000-memory.dmp

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memory/2772-10-0x00007FF8D9B90000-0x00007FF8D9D85000-memory.dmp

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memory/2772-9-0x00007FF8D9B90000-0x00007FF8D9D85000-memory.dmp

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memory/2772-0-0x00007FF899C10000-0x00007FF899C20000-memory.dmp

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memory/2772-1-0x00007FF899C10000-0x00007FF899C20000-memory.dmp

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memory/2772-2-0x00007FF899C10000-0x00007FF899C20000-memory.dmp

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memory/2772-12-0x00007FF897A10000-0x00007FF897A20000-memory.dmp

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memory/2772-4-0x00007FF899C10000-0x00007FF899C20000-memory.dmp

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memory/3968-75-0x000001A1F1170000-0x000001A1F11E6000-memory.dmp

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memory/3968-74-0x000001A1F0E80000-0x000001A1F0EC4000-memory.dmp

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memory/4472-77-0x00000210E2A70000-0x00000210E2A78000-memory.dmp

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memory/4472-76-0x00000210E2930000-0x00000210E293A000-memory.dmp

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memory/4472-65-0x00000210E2A80000-0x00000210E2AA2000-memory.dmp

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memory/4900-90-0x0000011A5BEB0000-0x0000011A5BFEC000-memory.dmp

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