xworm | e9e6a5e4d64f01b158801bbaead6aedfeeb8cd754e734d1471f591ca3e2c08f8

Analysis

max time kernel
146s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:17

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General

Target
d9cf29b5554af511c587d42fc89b333f.exe
Size 73KB
Sample250322-g17rssy1ev
SHA256 255fb86d56dbcbf96016d55ccdbe48d2acf7762bb16e115487c4b9991c13bee2
MD5 d9cf29b5554af511c587d42fc89b333f
SHA1 cd607ac7223b6023f267b8e2bc072f065604bbe5
SHA512 2504067df1665cd4b142144b5c5e5085c44bac809e27226fb2bf4230b0cb2966e35c9a99416d22ad261f220f4aaec349a55fadc3d169300d6078853e75267ecf
SSDEEP 1536:F9wkc4ceDXruTXh+bX7kaAj6McOVBwVCJSdUf:yODyl+bXUhcOvwQac
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

sound-kuwait.gl.at.ply.gg:23006

Attributes

Install_directory
%AppData%
install_file
svchost.exe

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral7/memory/2660-1-0x0000000000A90000-0x0000000000AA8000-memory.dmp	family_xworm
behavioral7/memory/1776-36-0x00000000001E0000-0x00000000001F8000-memory.dmp	family_xworm
behavioral7/files/0x0006000000004ed7-35.dat	family_xworm
behavioral7/memory/2500-39-0x0000000001250000-0x0000000001268000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm 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
2412	powershell.exe
2820	powershell.exe
2544	powershell.exe
2796	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	d9cf29b5554af511c587d42fc89b333f.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	d9cf29b5554af511c587d42fc89b333f.exe

Executes dropped EXE 2 IoCs

pid	Process
1776	svchost.exe
2500	svchost.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	d9cf29b5554af511c587d42fc89b333f.exe

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
2876	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2820	powershell.exe
2796	powershell.exe
2544	powershell.exe
2412	powershell.exe
2660	d9cf29b5554af511c587d42fc89b333f.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2660	d9cf29b5554af511c587d42fc89b333f.exe
Token: SeDebugPrivilege	2820	powershell.exe
Token: SeDebugPrivilege	2796	powershell.exe
Token: SeDebugPrivilege	2544	powershell.exe
Token: SeDebugPrivilege	2412	powershell.exe
Token: SeDebugPrivilege	2660	d9cf29b5554af511c587d42fc89b333f.exe
Token: SeDebugPrivilege	1776	svchost.exe
Token: SeDebugPrivilege	2500	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2660	d9cf29b5554af511c587d42fc89b333f.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2660 wrote to memory of 2820	2660	d9cf29b5554af511c587d42fc89b333f.exe	31
PID 2660 wrote to memory of 2820	2660	d9cf29b5554af511c587d42fc89b333f.exe	31
PID 2660 wrote to memory of 2820	2660	d9cf29b5554af511c587d42fc89b333f.exe	31
PID 2660 wrote to memory of 2796	2660	d9cf29b5554af511c587d42fc89b333f.exe	33
PID 2660 wrote to memory of 2796	2660	d9cf29b5554af511c587d42fc89b333f.exe	33
PID 2660 wrote to memory of 2796	2660	d9cf29b5554af511c587d42fc89b333f.exe	33
PID 2660 wrote to memory of 2544	2660	d9cf29b5554af511c587d42fc89b333f.exe	35
PID 2660 wrote to memory of 2544	2660	d9cf29b5554af511c587d42fc89b333f.exe	35
PID 2660 wrote to memory of 2544	2660	d9cf29b5554af511c587d42fc89b333f.exe	35
PID 2660 wrote to memory of 2412	2660	d9cf29b5554af511c587d42fc89b333f.exe	37
PID 2660 wrote to memory of 2412	2660	d9cf29b5554af511c587d42fc89b333f.exe	37
PID 2660 wrote to memory of 2412	2660	d9cf29b5554af511c587d42fc89b333f.exe	37
PID 2660 wrote to memory of 2876	2660	d9cf29b5554af511c587d42fc89b333f.exe	39
PID 2660 wrote to memory of 2876	2660	d9cf29b5554af511c587d42fc89b333f.exe	39
PID 2660 wrote to memory of 2876	2660	d9cf29b5554af511c587d42fc89b333f.exe	39
PID 1912 wrote to memory of 1776	1912	taskeng.exe	42
PID 1912 wrote to memory of 1776	1912	taskeng.exe	42
PID 1912 wrote to memory of 1776	1912	taskeng.exe	42
PID 1912 wrote to memory of 2500	1912	taskeng.exe	44
PID 1912 wrote to memory of 2500	1912	taskeng.exe	44
PID 1912 wrote to memory of 2500	1912	taskeng.exe	44

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\d9cf29b5554af511c587d42fc89b333f.exe
"C:\Users\Admin\AppData\Local\Temp\d9cf29b5554af511c587d42fc89b333f.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2660
- 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\d9cf29b5554af511c587d42fc89b333f.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2820
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'd9cf29b5554af511c587d42fc89b333f.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2796
- 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\svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2544
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2412
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2876

C:\Windows\system32\taskeng.exe
taskeng.exe {74C30DE6-FCCC-46B9-8BE5-6ECE0B1F3FBB} S-1-5-21-3533259084-2542256011-65585152-1000:XPAJOTIY\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1912
- C:\Users\Admin\AppData\Roaming\svchost.exe
  C:\Users\Admin\AppData\Roaming\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1776
- C:\Users\Admin\AppData\Roaming\svchost.exe
  C:\Users\Admin\AppData\Roaming\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2500

Network

MITRE ATT&CK Enterprise v15

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

QNG8GG6ZBNWGR56Z3B7T.temp

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\QNG8GG6ZBNWGR56Z3B7T.temp
Size 7KB
SHA256 6f75bb79f5dc8881f1901b12d7fe2ca28f461d894a5708e960411dbf698b3e45
MD5 b4dcb60f6cfdaa305ec131a499e6bc8c
SHA1 732c8a8bc464a9959fc2c6f5061cd911042e0c6d
SHA512 93c0c566276856ee769c84e8c6ba36f352aad0a41203072d0feb850e55be80563a090106faa546dc6405022addb23acdf603bbb1032d1f36dd35eaec64fa6b1f
SSDEEP 96:QZafCZPM8mnqvsqvJCwoTZafCZPM8mnqvsEHyqvJCwor6eKumdQHEAu7+eDXlUV+:IvPqUo9vPqAHnor6eKdBAu7+eDN
MD5 SHA1 SHA512 SSDEEP

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svchost.exe

Path C:\Users\Admin\AppData\Roaming\svchost.exe
Size 73KB
SHA256 255fb86d56dbcbf96016d55ccdbe48d2acf7762bb16e115487c4b9991c13bee2
MD5 d9cf29b5554af511c587d42fc89b333f
SHA1 cd607ac7223b6023f267b8e2bc072f065604bbe5
SHA512 2504067df1665cd4b142144b5c5e5085c44bac809e27226fb2bf4230b0cb2966e35c9a99416d22ad261f220f4aaec349a55fadc3d169300d6078853e75267ecf
SSDEEP 1536:F9wkc4ceDXruTXh+bX7kaAj6McOVBwVCJSdUf:yODyl+bXUhcOvwQac
MD5 SHA1 SHA512 SSDEEP

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memory/1776-36-0x00000000001E0000-0x00000000001F8000-memory.dmp

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memory/2500-39-0x0000000001250000-0x0000000001268000-memory.dmp

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memory/2660-31-0x000007FEF5DC3000-0x000007FEF5DC4000-memory.dmp

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memory/2660-1-0x0000000000A90000-0x0000000000AA8000-memory.dmp

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memory/2660-0-0x000007FEF5DC3000-0x000007FEF5DC4000-memory.dmp

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memory/2660-32-0x000000001B240000-0x000000001B2C0000-memory.dmp

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memory/2660-30-0x000000001B240000-0x000000001B2C0000-memory.dmp

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memory/2796-15-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

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memory/2796-14-0x000000001B570000-0x000000001B852000-memory.dmp

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memory/2820-7-0x000000001B4E0000-0x000000001B7C2000-memory.dmp

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memory/2820-8-0x0000000002810000-0x0000000002818000-memory.dmp

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memory/2820-6-0x0000000002B60000-0x0000000002BE0000-memory.dmp

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