xworm | fe3147f86b26fd633dc86f6104010d34326fa015e1cc1cb44c6e13dfadf5842f

General

Target

XClient.exe
Size

46KB
MD5

f057994465d01526751fd54b2d51211f
SHA1

6c5f8b5f144cb461c423a19e19b80c7592da2adb
SHA256

fe3147f86b26fd633dc86f6104010d34326fa015e1cc1cb44c6e13dfadf5842f
SHA512

ce9fe02b419029708fd1c9ad57fbb678a741c60948c8e75ef51e221b5adf7b2bd27d7a9aedb81d8910f3b443804d5fec8016f928ceb606fd367fa7aea8878ad0
SSDEEP

768:YnxE3+8AgNT7IqTpGhJduILzFh0gFEPI9O0Lr68Ouhvzj09:Yn2+86JtXFr9Zn68OuJW

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

users-bikes.gl.at.ply.gg:60963

Mutex

gkvCDExYHD5vnCdW

Attributes

Install_directory
%Temp%
install_file
solara.exe
telegram
https://api.telegram.org/bot7146936438:AAE_9wNhZKkwFCU2TNwhMIogBHJX_-QiQso/sendMessage?chat_id=1380863399

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2084-1-0x0000000000130000-0x0000000000142000-memory.dmp	family_xworm

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

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe

pid process

2532 powershell.exe
1476 powershell.exe
2528 powershell.exe
2796 powershell.exe

pid	process
2532	powershell.exe
1476	powershell.exe
2528	powershell.exe
2796	powershell.exe

Drops startup file 2 IoCs

Processes:

XClient.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\solara.lnk	XClient.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\solara.lnk	XClient.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

XClient.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\solara = "C:\\Users\\Admin\\AppData\\Local\\Temp\\solara.exe"	XClient.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 ip-api.com
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exeXClient.exe

pid process

2532 powershell.exe
1476 powershell.exe
2528 powershell.exe
2796 powershell.exe
2084 XClient.exe

flow	ioc
4	ip-api.com

pid	process
2532	powershell.exe
1476	powershell.exe
2528	powershell.exe
2796	powershell.exe
2084	XClient.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

XClient.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	2084	XClient.exe
Token: SeDebugPrivilege	2532	powershell.exe
Token: SeDebugPrivilege	1476	powershell.exe
Token: SeDebugPrivilege	2528	powershell.exe
Token: SeDebugPrivilege	2796	powershell.exe
Token: SeDebugPrivilege	2084	XClient.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

XClient.exe

pid process

2084 XClient.exe

pid	process
2084	XClient.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

XClient.exe

description	pid	process	target process
PID 2084 wrote to memory of 2532	2084	XClient.exe	powershell.exe
PID 2084 wrote to memory of 2532	2084	XClient.exe	powershell.exe
PID 2084 wrote to memory of 2532	2084	XClient.exe	powershell.exe
PID 2084 wrote to memory of 1476	2084	XClient.exe	powershell.exe
PID 2084 wrote to memory of 1476	2084	XClient.exe	powershell.exe
PID 2084 wrote to memory of 1476	2084	XClient.exe	powershell.exe
PID 2084 wrote to memory of 2528	2084	XClient.exe	powershell.exe
PID 2084 wrote to memory of 2528	2084	XClient.exe	powershell.exe
PID 2084 wrote to memory of 2528	2084	XClient.exe	powershell.exe
PID 2084 wrote to memory of 2796	2084	XClient.exe	powershell.exe
PID 2084 wrote to memory of 2796	2084	XClient.exe	powershell.exe
PID 2084 wrote to memory of 2796	2084	XClient.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.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:2084

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\XClient.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2532

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1476

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\solara.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2528

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'solara.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2796

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
Filesize
7KB

MD5
96800fa2665f469a41178c92d529a4ad

SHA1
b19843f61cabed68b0c63ac6acb8ffba274e7ef3

SHA256
25376e9cd5142a3aa07301ea5f5b527166358a623c3622ba663b48ecbd2b9dd5

SHA512
76b8fee2271d03b88959c2f5036a990f04ce09e6b9b122542e60bc809ba22f8e013eed0a792effe33c55cc984995c12ddd4c1f0a1da8694af1d2a4c591977c54

Download Submit
memory/1476-15-0x000000001B5D0000-0x000000001B8B2000-memory.dmp

Filesize
2.9MB

Download
memory/1476-16-0x0000000001D20000-0x0000000001D28000-memory.dmp

Filesize
32KB

Download
memory/2084-0-0x000007FEF5F83000-0x000007FEF5F84000-memory.dmp

Filesize
4KB

Download
memory/2084-1-0x0000000000130000-0x0000000000142000-memory.dmp

Filesize
72KB

Download
memory/2084-2-0x000007FEF5F80000-0x000007FEF696C000-memory.dmp

Filesize
9.9MB

Download
memory/2084-31-0x000007FEF5F83000-0x000007FEF5F84000-memory.dmp

Filesize
4KB

Download
memory/2084-32-0x000007FEF5F80000-0x000007FEF696C000-memory.dmp

Filesize
9.9MB

Download
memory/2532-7-0x0000000002D20000-0x0000000002DA0000-memory.dmp

Filesize
512KB

Download
memory/2532-8-0x000000001B670000-0x000000001B952000-memory.dmp

Filesize
2.9MB

Download
memory/2532-9-0x0000000001D20000-0x0000000001D28000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads