xworm | 5d1bc7e3f7b18f53fd7dc96c302ab1e1606445fc07d4cf133debf1ed73c5c58e

Analysis

max time kernel
149s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
27/08/2026, 23:19

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General

Target
5d1bc7e3f7b18f53fd7dc96c302ab1e1606445fc07d4cf133debf1ed73c5c58e.exe
Size 187KB
Sample260827-3a8gasbc56
SHA256 5d1bc7e3f7b18f53fd7dc96c302ab1e1606445fc07d4cf133debf1ed73c5c58e
MD5 d2ba6edce78b86db7b40b4b355a2b181
SHA1 3b0a2daf4b96e00554c59fa0eb1bba1f22a9ba16
SHA512 75b9bb8e75a3484d580e020ba9c4634860c8afde0fea202e1b07ddc4545561fd48d233c116ffcc76f371b92d7bb78b699d506367bbb4560b4e7c1852dde7559f
SSDEEP 3072:aZaOhGmWTgOe7B1b73SkO6Ug8xyAEM+lmsolAIrRuw+mqv9j1MWLQI:a5gbpy1b3+H+lDAA
TLSH
T1611474F06780C465E8AB9A798877E6A7A433B25E9C58450D38D2FF0B7D33347442399B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery execution xworm persistence privilege_escalation rat trojan

Malware Config

Extracted

Family

xworm

Version

XWorm V5.6

hk16.duckdns.org:2222

Attributes

Install_directory
%AppData%
install_file
Decrypt.exe

Signatures

Family: Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/memory/1060-0-0x0000000000DA0000-0x0000000000DD4000-memory.dmp	family_xworm
behavioral1/files/0x000b00000002447e-52.dat	family_xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
4276	powershell.exe
2148	powershell.exe
4812	powershell.exe
3748	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-1-5-21-1788976790-1541110888-1636651838-1000\Control Panel\International\Geo\Nation	5d1bc7e3f7b18f53fd7dc96c302ab1e1606445fc07d4cf133debf1ed73c5c58e.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\Decrypt.lnk	5d1bc7e3f7b18f53fd7dc96c302ab1e1606445fc07d4cf133debf1ed73c5c58e.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Decrypt.lnk	5d1bc7e3f7b18f53fd7dc96c302ab1e1606445fc07d4cf133debf1ed73c5c58e.exe

Executes dropped EXE 3 IoCs

pid	Process
2680	Decrypt.exe
912	Decrypt.exe
4700	Decrypt.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-1-5-21-1788976790-1541110888-1636651838-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Decrypt = "C:\\Users\\Admin\\AppData\\Roaming\\Decrypt.exe"	5d1bc7e3f7b18f53fd7dc96c302ab1e1606445fc07d4cf133debf1ed73c5c58e.exe

Looks up external IP address via web service 1 TTPs 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

discovery

Internet Connection Discovery

T1016.001

flow	ioc
12	ip-api.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
688	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2148	powershell.exe
2148	powershell.exe
4812	powershell.exe
4812	powershell.exe
3748	powershell.exe
3748	powershell.exe
4276	powershell.exe
4276	powershell.exe
1060	5d1bc7e3f7b18f53fd7dc96c302ab1e1606445fc07d4cf133debf1ed73c5c58e.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	1060	5d1bc7e3f7b18f53fd7dc96c302ab1e1606445fc07d4cf133debf1ed73c5c58e.exe
Token: SeDebugPrivilege	2148	powershell.exe
Token: SeDebugPrivilege	4812	powershell.exe
Token: SeDebugPrivilege	3748	powershell.exe
Token: SeDebugPrivilege	4276	powershell.exe
Token: SeDebugPrivilege	1060	5d1bc7e3f7b18f53fd7dc96c302ab1e1606445fc07d4cf133debf1ed73c5c58e.exe
Token: SeDebugPrivilege	2680	Decrypt.exe
Token: SeDebugPrivilege	912	Decrypt.exe
Token: SeDebugPrivilege	4700	Decrypt.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1060	5d1bc7e3f7b18f53fd7dc96c302ab1e1606445fc07d4cf133debf1ed73c5c58e.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1060 wrote to memory of 2148	1060	5d1bc7e3f7b18f53fd7dc96c302ab1e1606445fc07d4cf133debf1ed73c5c58e.exe	96
PID 1060 wrote to memory of 4812	1060	5d1bc7e3f7b18f53fd7dc96c302ab1e1606445fc07d4cf133debf1ed73c5c58e.exe	98
PID 1060 wrote to memory of 3748	1060	5d1bc7e3f7b18f53fd7dc96c302ab1e1606445fc07d4cf133debf1ed73c5c58e.exe	100
PID 1060 wrote to memory of 4276	1060	5d1bc7e3f7b18f53fd7dc96c302ab1e1606445fc07d4cf133debf1ed73c5c58e.exe	102
PID 1060 wrote to memory of 688	1060	5d1bc7e3f7b18f53fd7dc96c302ab1e1606445fc07d4cf133debf1ed73c5c58e.exe	104

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\5d1bc7e3f7b18f53fd7dc96c302ab1e1606445fc07d4cf133debf1ed73c5c58e.exe
"C:\Users\Admin\AppData\Local\Temp\5d1bc7e3f7b18f53fd7dc96c302ab1e1606445fc07d4cf133debf1ed73c5c58e.exe"
1⤵
- Checks computer location settings
- Creates a file in the Startup directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1060
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\5d1bc7e3f7b18f53fd7dc96c302ab1e1606445fc07d4cf133debf1ed73c5c58e.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2148
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '5d1bc7e3f7b18f53fd7dc96c302ab1e1606445fc07d4cf133debf1ed73c5c58e.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4812
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\Decrypt.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3748
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Decrypt.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4276
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Decrypt" /tr "C:\Users\Admin\AppData\Roaming\Decrypt.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:688

C:\Users\Admin\AppData\Roaming\Decrypt.exe
C:\Users\Admin\AppData\Roaming\Decrypt.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2680

C:\Users\Admin\AppData\Roaming\Decrypt.exe
C:\Users\Admin\AppData\Roaming\Decrypt.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:912

C:\Users\Admin\AppData\Roaming\Decrypt.exe
C:\Users\Admin\AppData\Roaming\Decrypt.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4700

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Decrypt.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Decrypt.exe.log
Size 654B
SHA256 e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
MD5 2ff39f6c7249774be85fd60a8f9a245e
SHA1 684ff36b31aedc1e587c8496c02722c6698c1c4e
SHA512 1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1
TLSH
T1D9F0DD242221E1C489127F111C0D2A4452BF4797B760EE0C7554529FD8312275F203E7
MD5 SHA1 SHA512 TLSH

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powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 2KB
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
TLSH
T1CE51EE323375B1E888167F071E681A8053BF4355EA94AF1CB698621ED93641B9F222F3
MD5 SHA1 SHA512 TLSH

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 9d031d7193142f7120476fe181006807652ca4a8caec8fbab3f4e4f86e451049
MD5 f4d10dbf9ff1d91226db0d9ce144033c
SHA1 1fab5ab3cf8b1b48a146c3b83fad67c44c7bd791
SHA512 2b2fed18f7ac2e15f990aaab9fc814f040bd387cbf3634b8d2cf22d24bb8fe8c87e88f640190dce2362edcb33cc3296bb76ed462f847cfac8eaab6456000f1d8
TLSH
T12B112223F38C8920CC96163A509DAC5172B586CB81EEDF9F7FC0D210A1BF584CB61294
MD5 SHA1 SHA512 TLSH

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 77a94ef8c4258445d538a6006ffadb05afdf888f6f044e1e5466b981a07f16c5
MD5 da5c82b0e070047f7377042d08093ff4
SHA1 89d05987cd60828cca516c5c40c18935c35e8bd3
SHA512 7360311a3c97b73dd3f6d7179cd979e0e20d69f380d38292447e17e369087d9dd5acb66cd0cbdd95ac4bfb16e5a1b86825f835a8d45b14ea9812102cff59704b
TLSH
T123112223F38C8920CC961539509DAC5172B586CB81AFDE9F7FC0D210A1BF584CB61294
MD5 SHA1 SHA512 TLSH

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__PSScriptPolicyTest_4u5jx5fy.hhu.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4u5jx5fy.hhu.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

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Decrypt.exe

Path C:\Users\Admin\AppData\Roaming\Decrypt.exe
Size 187KB
SHA256 5d1bc7e3f7b18f53fd7dc96c302ab1e1606445fc07d4cf133debf1ed73c5c58e
MD5 d2ba6edce78b86db7b40b4b355a2b181
SHA1 3b0a2daf4b96e00554c59fa0eb1bba1f22a9ba16
SHA512 75b9bb8e75a3484d580e020ba9c4634860c8afde0fea202e1b07ddc4545561fd48d233c116ffcc76f371b92d7bb78b699d506367bbb4560b4e7c1852dde7559f
SSDEEP 3072:aZaOhGmWTgOe7B1b73SkO6Ug8xyAEM+lmsolAIrRuw+mqv9j1MWLQI:a5gbpy1b3+H+lDAA
TLSH
T1611474F06780C465E8AB9A798877E6A7A433B25E9C58450D38D2FF0B7D33347442399B
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1060-1-0x000000001B9A0000-0x000000001B9B0000-memory.dmp

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memory/1060-2-0x000000001B9A0000-0x000000001B9B0000-memory.dmp

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memory/1060-0-0x0000000000DA0000-0x0000000000DD4000-memory.dmp

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memory/2148-3-0x000002671BB30000-0x000002671BB40000-memory.dmp

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memory/2148-15-0x0000026734D10000-0x0000026734E7A000-memory.dmp

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memory/2148-5-0x00000267349C0000-0x00000267349E2000-memory.dmp

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memory/2148-4-0x000002671BB30000-0x000002671BB40000-memory.dmp

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memory/3748-36-0x000001619FE70000-0x000001619FFDA000-memory.dmp

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memory/4276-46-0x00000216E7440000-0x00000216E75AA000-memory.dmp

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memory/4812-26-0x000001EC39780000-0x000001EC398EA000-memory.dmp

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