xworm | ad13779dfed42b4f1fc882216a9157bc65aee15f058b784ea809b86fceae34af

Analysis

max time kernel
297s
max time network
295s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19/01/2025, 20:38

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

XClient.exe
Size

64KB
MD5

0b825a60d5232c19548fe6bee6eceaf7
SHA1

70b29e65c74ee6d11dd99ab644ea967efd868aa2
SHA256

ad13779dfed42b4f1fc882216a9157bc65aee15f058b784ea809b86fceae34af
SHA512

408f6f6239a4a11913f012d7a6ba8d7c48896312a894d574b892553aeb6658ad1f4599d1cc899beb2e762c6496654077dfbe253e0f4a53d63a5dd1327f1d570a
SSDEEP

1536:ElDBb5dZjeQ+3uYkkf9pWbkoxy061cOirS0LpHn2TfaS:Ell5/7+3uYkkXWbk+jOirS0dHEaS

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

memory-lottery.gl.at.ply.gg:444

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 6 IoCs

resource	yara_rule
behavioral1/memory/2524-1-0x0000000000830000-0x0000000000846000-memory.dmp	family_xworm
behavioral1/files/0x000a000000019228-34.dat	family_xworm
behavioral1/memory/2344-36-0x00000000003C0000-0x00000000003D6000-memory.dmp	family_xworm
behavioral1/memory/780-39-0x0000000000E60000-0x0000000000E76000-memory.dmp	family_xworm
behavioral1/memory/2276-42-0x0000000000260000-0x0000000000276000-memory.dmp	family_xworm
behavioral1/memory/1856-44-0x0000000000BC0000-0x0000000000BD6000-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
1712	powershell.exe
2604	powershell.exe
2624	powershell.exe
2412	powershell.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 5 IoCs

pid	Process
2344	security
780	security
1760	security
2276	security
1856	security

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\security = "C:\\Users\\Admin\\AppData\\Roaming\\security"	XClient.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
2716	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2524	XClient.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2412	powershell.exe
1712	powershell.exe
2604	powershell.exe
2624	powershell.exe
2524	XClient.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeDebugPrivilege	2524	XClient.exe
Token: SeDebugPrivilege	2412	powershell.exe
Token: SeDebugPrivilege	1712	powershell.exe
Token: SeDebugPrivilege	2604	powershell.exe
Token: SeDebugPrivilege	2624	powershell.exe
Token: SeDebugPrivilege	2524	XClient.exe
Token: SeDebugPrivilege	2344	security
Token: SeDebugPrivilege	780	security
Token: SeDebugPrivilege	1760	security
Token: SeDebugPrivilege	2276	security
Token: SeDebugPrivilege	1856	security

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2524	XClient.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 2412	2524	XClient.exe	30
PID 2524 wrote to memory of 2412	2524	XClient.exe	30
PID 2524 wrote to memory of 2412	2524	XClient.exe	30
PID 2524 wrote to memory of 1712	2524	XClient.exe	32
PID 2524 wrote to memory of 1712	2524	XClient.exe	32
PID 2524 wrote to memory of 1712	2524	XClient.exe	32
PID 2524 wrote to memory of 2604	2524	XClient.exe	34
PID 2524 wrote to memory of 2604	2524	XClient.exe	34
PID 2524 wrote to memory of 2604	2524	XClient.exe	34
PID 2524 wrote to memory of 2624	2524	XClient.exe	36
PID 2524 wrote to memory of 2624	2524	XClient.exe	36
PID 2524 wrote to memory of 2624	2524	XClient.exe	36
PID 2524 wrote to memory of 2716	2524	XClient.exe	38
PID 2524 wrote to memory of 2716	2524	XClient.exe	38
PID 2524 wrote to memory of 2716	2524	XClient.exe	38
PID 1388 wrote to memory of 2344	1388	taskeng.exe	42
PID 1388 wrote to memory of 2344	1388	taskeng.exe	42
PID 1388 wrote to memory of 2344	1388	taskeng.exe	42
PID 1388 wrote to memory of 780	1388	taskeng.exe	43
PID 1388 wrote to memory of 780	1388	taskeng.exe	43
PID 1388 wrote to memory of 780	1388	taskeng.exe	43
PID 1388 wrote to memory of 1760	1388	taskeng.exe	44
PID 1388 wrote to memory of 1760	1388	taskeng.exe	44
PID 1388 wrote to memory of 1760	1388	taskeng.exe	44
PID 1388 wrote to memory of 2276	1388	taskeng.exe	45
PID 1388 wrote to memory of 2276	1388	taskeng.exe	45
PID 1388 wrote to memory of 2276	1388	taskeng.exe	45
PID 1388 wrote to memory of 1856	1388	taskeng.exe	46
PID 1388 wrote to memory of 1856	1388	taskeng.exe	46
PID 1388 wrote to memory of 1856	1388	taskeng.exe	46

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\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2524
- 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:2412
- 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:1712
- 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\security'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2604
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'security'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2624
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "security" /tr "C:\Users\Admin\AppData\Roaming\security"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2716

C:\Windows\system32\taskeng.exe
taskeng.exe {2D05C960-03EB-4386-A413-2EB5B18A0275} S-1-5-21-3533259084-2542256011-65585152-1000:XPAJOTIY\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1388
- C:\Users\Admin\AppData\Roaming\security
  C:\Users\Admin\AppData\Roaming\security
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2344
- C:\Users\Admin\AppData\Roaming\security
  C:\Users\Admin\AppData\Roaming\security
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:780
- C:\Users\Admin\AppData\Roaming\security
  C:\Users\Admin\AppData\Roaming\security
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1760
- C:\Users\Admin\AppData\Roaming\security
  C:\Users\Admin\AppData\Roaming\security
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2276
- C:\Users\Admin\AppData\Roaming\security
  C:\Users\Admin\AppData\Roaming\security
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1856

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
7KB

MD5
9de21f8987fded8537106fde1bd54e9b

SHA1
ec7bda7669858022bdc4ba7a8df0b21d167bf0d5

SHA256
a1162deb347e23badb3afb6c48860d135651cf9de6dd0f4266c909daf4fdf61a

SHA512
2a65fd3435e3ae25faa7595fc23849309959f8a4170199b6745cdaccd02b3e74f2647d4c35482091c44ea7653fee1a12662c17b0c86a3ccd69c02afdaf6730c6

Download Submit
C:\Users\Admin\AppData\Roaming\security

Filesize
64KB

MD5
0b825a60d5232c19548fe6bee6eceaf7

SHA1
70b29e65c74ee6d11dd99ab644ea967efd868aa2

SHA256
ad13779dfed42b4f1fc882216a9157bc65aee15f058b784ea809b86fceae34af

SHA512
408f6f6239a4a11913f012d7a6ba8d7c48896312a894d574b892553aeb6658ad1f4599d1cc899beb2e762c6496654077dfbe253e0f4a53d63a5dd1327f1d570a

Download Submit
memory/780-39-0x0000000000E60000-0x0000000000E76000-memory.dmp

Filesize
88KB

Download
memory/1712-14-0x000000001B6D0000-0x000000001B9B2000-memory.dmp

Filesize
2.9MB

Download
memory/1712-15-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

Filesize
32KB

Download
memory/1856-44-0x0000000000BC0000-0x0000000000BD6000-memory.dmp

Filesize
88KB

Download
memory/2276-42-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/2344-36-0x00000000003C0000-0x00000000003D6000-memory.dmp

Filesize
88KB

Download
memory/2412-8-0x0000000001FC0000-0x0000000001FC8000-memory.dmp

Filesize
32KB

Download
memory/2412-6-0x0000000002B60000-0x0000000002BE0000-memory.dmp

Filesize
512KB

Download
memory/2412-7-0x000000001B610000-0x000000001B8F2000-memory.dmp

Filesize
2.9MB

Download
memory/2524-30-0x000000001B3F0000-0x000000001B470000-memory.dmp

Filesize
512KB

Download
memory/2524-1-0x0000000000830000-0x0000000000846000-memory.dmp

Filesize
88KB

Download
memory/2524-32-0x000000001B3F0000-0x000000001B470000-memory.dmp

Filesize
512KB

Download
memory/2524-31-0x000007FEF6003000-0x000007FEF6004000-memory.dmp

Filesize
4KB

Download
memory/2524-0-0x000007FEF6003000-0x000007FEF6004000-memory.dmp

Filesize
4KB

Download