xworm | 667cb510540d8e7a6cd30007d30a8ca11110dde57bd03d2cbf87ca6b7868bdb9

Analysis

max time kernel
128s
max time network
143s
platform
windows7_x64
resource
win7-20250207-en
resource tags

arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:18

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General

Target

eff37c0a73a6e26dacdcb0ed3001e2c5.exe
Size

36KB
MD5

eff37c0a73a6e26dacdcb0ed3001e2c5
SHA1

39497770cf0aab8b77e4fa9f6282002051bfe347
SHA256

7c64fb861dc56d82df0f3915492c0614624999cf9ec72a42f957e986dd628639
SHA512

fdc3de44ca49627120f2d349804b3453877f705b4bfad8dfaeb52fcce6770a04628d69fc6d63c8c4ebffdfcf422db6ab221c47c29c17affaac37403db53ded71
SSDEEP

768:W65+GilKzo6tIpmAmOe6W4oJ5Fyw99Sv6KO/hky4VR:Wu+Gbzo6t9Au6GTFr99G6KO/yjR

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

spring-ieee.gl.at.ply.gg:5538

Mutex

4RMfQ1QkxZtuqhyG

Attributes

Install_directory
%AppData%
install_file
Windows Defender.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral31/memory/2708-1-0x0000000000BE0000-0x0000000000BF0000-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
2764	powershell.exe
2912	powershell.exe
2304	powershell.exe
2084	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Defender.lnk	eff37c0a73a6e26dacdcb0ed3001e2c5.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Defender.lnk	eff37c0a73a6e26dacdcb0ed3001e2c5.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-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Defender = "C:\\Users\\Admin\\AppData\\Roaming\\Windows Defender.exe"	eff37c0a73a6e26dacdcb0ed3001e2c5.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
336	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2764	powershell.exe
2912	powershell.exe
2304	powershell.exe
2084	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2708	eff37c0a73a6e26dacdcb0ed3001e2c5.exe
Token: SeDebugPrivilege	2764	powershell.exe
Token: SeDebugPrivilege	2912	powershell.exe
Token: SeDebugPrivilege	2304	powershell.exe
Token: SeDebugPrivilege	2084	powershell.exe
Token: SeDebugPrivilege	2708	eff37c0a73a6e26dacdcb0ed3001e2c5.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 2764	2708	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	30
PID 2708 wrote to memory of 2764	2708	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	30
PID 2708 wrote to memory of 2764	2708	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	30
PID 2708 wrote to memory of 2912	2708	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	32
PID 2708 wrote to memory of 2912	2708	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	32
PID 2708 wrote to memory of 2912	2708	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	32
PID 2708 wrote to memory of 2304	2708	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	34
PID 2708 wrote to memory of 2304	2708	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	34
PID 2708 wrote to memory of 2304	2708	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	34
PID 2708 wrote to memory of 2084	2708	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	36
PID 2708 wrote to memory of 2084	2708	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	36
PID 2708 wrote to memory of 2084	2708	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	36
PID 2708 wrote to memory of 336	2708	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	38
PID 2708 wrote to memory of 336	2708	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	38
PID 2708 wrote to memory of 336	2708	eff37c0a73a6e26dacdcb0ed3001e2c5.exe	38

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\eff37c0a73a6e26dacdcb0ed3001e2c5.exe
"C:\Users\Admin\AppData\Local\Temp\eff37c0a73a6e26dacdcb0ed3001e2c5.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2708
- 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\eff37c0a73a6e26dacdcb0ed3001e2c5.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2764
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'eff37c0a73a6e26dacdcb0ed3001e2c5.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2912
- 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\Windows Defender.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2304
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Windows Defender.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2084
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Windows Defender" /tr "C:\Users\Admin\AppData\Roaming\Windows Defender.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:336

C:\Windows\system32\taskeng.exe
taskeng.exe {01A4988A-6167-4E90-A504-D953AD7D0D5B} S-1-5-21-677481364-2238709445-1347953534-1000:JXXXDSWS\Admin:Interactive:[1]
1⤵
PID:3036

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

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\62LH5ZTLCGHJQWQ89J34.temp

Filesize
7KB

MD5
7b7382488ec56b2fc31c73ee7ab3e8b1

SHA1
c3d1e3c525198ce635dc103babfec9609b636b91

SHA256
c3300d3f90a0a2b76aa9c57243b9df49dac0daf16047735e529068bad0110fa5

SHA512
42cd8437fbdf84b60da34817b5d11835932dc941089812c69f6417201ebfcc39421cb8474dd0ae24fcfda52408a00ec34540e451196d72542e99e089a6b3f642

Download Submit
memory/2708-0-0x000007FEF5073000-0x000007FEF5074000-memory.dmp

Filesize
4KB

Download
memory/2708-1-0x0000000000BE0000-0x0000000000BF0000-memory.dmp

Filesize
64KB

Download
memory/2708-31-0x000000001AC60000-0x000000001ACE0000-memory.dmp

Filesize
512KB

Download
memory/2708-32-0x000007FEF5073000-0x000007FEF5074000-memory.dmp

Filesize
4KB

Download
memory/2708-33-0x000000001AC60000-0x000000001ACE0000-memory.dmp

Filesize
512KB

Download
memory/2764-6-0x00000000028B0000-0x0000000002930000-memory.dmp

Filesize
512KB

Download
memory/2764-8-0x0000000002220000-0x0000000002228000-memory.dmp

Filesize
32KB

Download
memory/2764-7-0x000000001B610000-0x000000001B8F2000-memory.dmp

Filesize
2.9MB

Download
memory/2912-14-0x000000001B750000-0x000000001BA32000-memory.dmp

Filesize
2.9MB

Download
memory/2912-15-0x0000000001E10000-0x0000000001E18000-memory.dmp

Filesize
32KB

Download