xworm | fb63758b69032986e72f3d9a3e95b651151dce8f4349aa539b65422beef5702a

Analysis

max time kernel
133s
max time network
149s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
18-12-2024 19:34

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Loli-Mod-main/y.exe
Size

38KB
MD5

9212396ec7e75aee632a2304c9050bb3
SHA1

ecd187b60d5619ba78ab54bdd43ab9419ca4a72d
SHA256

6b82fc5f7ed107648cdb24ebd5f2aa0cff16af9d736ac8455175498a7ad47266
SHA512

b00528fa583cbd17b4a7b3f474c8177a288d95ab0f80aca1381434cb15df7fe0b2a9b7d6ea95d4ec55e8ad279f7473db07dde82d1ec408a46cbb60b4e4c5d2a4
SSDEEP

768:AXI+D3yb6a5up+I3pHGFyw9/PO6rO/hbPNQU:AnDiHDsEFr9HO6rO/NOU

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

Mutex

GQrSWs3TiKJsppyp

Attributes

Install_directory
%AppData%
install_file
COM Surogate.exe
pastebin_url
https://pastebin.com/raw/EJ2UmS6u

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral17/memory/2296-1-0x0000000000040000-0x0000000000050000-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
2828	powershell.exe
2628	powershell.exe
2608	powershell.exe
2188	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\COM Surogate.lnk	y.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\COM Surogate.lnk	y.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\COM Surogate = "C:\\Users\\Admin\\AppData\\Roaming\\COM Surogate.exe"	y.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
6	pastebin.com
7	pastebin.com

Looks up external IP address via web service 1 IoCs

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

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

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
1624	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2828	powershell.exe
2628	powershell.exe
2608	powershell.exe
2188	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2296	y.exe
Token: SeDebugPrivilege	2828	powershell.exe
Token: SeDebugPrivilege	2628	powershell.exe
Token: SeDebugPrivilege	2608	powershell.exe
Token: SeDebugPrivilege	2188	powershell.exe
Token: SeDebugPrivilege	2296	y.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 2828	2296	y.exe	32
PID 2296 wrote to memory of 2828	2296	y.exe	32
PID 2296 wrote to memory of 2828	2296	y.exe	32
PID 2296 wrote to memory of 2628	2296	y.exe	34
PID 2296 wrote to memory of 2628	2296	y.exe	34
PID 2296 wrote to memory of 2628	2296	y.exe	34
PID 2296 wrote to memory of 2608	2296	y.exe	36
PID 2296 wrote to memory of 2608	2296	y.exe	36
PID 2296 wrote to memory of 2608	2296	y.exe	36
PID 2296 wrote to memory of 2188	2296	y.exe	38
PID 2296 wrote to memory of 2188	2296	y.exe	38
PID 2296 wrote to memory of 2188	2296	y.exe	38
PID 2296 wrote to memory of 1624	2296	y.exe	40
PID 2296 wrote to memory of 1624	2296	y.exe	40
PID 2296 wrote to memory of 1624	2296	y.exe	40

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\Loli-Mod-main\y.exe
"C:\Users\Admin\AppData\Local\Temp\Loli-Mod-main\y.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2296
- 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\Loli-Mod-main\y.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2828
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'y.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2628
- 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\COM Surogate.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2608
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'COM Surogate.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2188
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "COM Surogate" /tr "C:\Users\Admin\AppData\Roaming\COM Surogate.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1624

C:\Windows\system32\taskeng.exe
taskeng.exe {CE1279EB-5548-412F-A6D1-AA8A4101F3FB} S-1-5-21-3692679935-4019334568-335155002-1000:BCXRJFKE\Admin:Interactive:[1]
1⤵
PID:2124

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

Web Service

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
7KB

MD5
7d73f1642c8ab3ff750c9ee7f6d56df3

SHA1
964426ff04ecfab320089742cf2f956cbe4d38dc

SHA256
6632304a6bb99be4e86eb7ca1225fc0d006530e269009fee654a7038fee9c238

SHA512
8648077747b226dd1c6fd212dcbfb57c700351ba4b4d9b73fd7c71a6467c4efbb569cdf3447b050658c3933aa019aecfc999fee122f6a3b546a36d3783cc09e6

Download Submit
memory/2296-0-0x000007FEF5833000-0x000007FEF5834000-memory.dmp

Filesize
4KB

Download
memory/2296-1-0x0000000000040000-0x0000000000050000-memory.dmp

Filesize
64KB

Download
memory/2296-2-0x000007FEF5830000-0x000007FEF621C000-memory.dmp

Filesize
9.9MB

Download
memory/2296-16-0x000007FEF5833000-0x000007FEF5834000-memory.dmp

Filesize
4KB

Download
memory/2296-32-0x000007FEF5830000-0x000007FEF621C000-memory.dmp

Filesize
9.9MB

Download
memory/2628-14-0x000000001B260000-0x000000001B542000-memory.dmp

Filesize
2.9MB

Download
memory/2628-15-0x0000000002270000-0x0000000002278000-memory.dmp

Filesize
32KB

Download
memory/2828-7-0x000000001B2C0000-0x000000001B5A2000-memory.dmp

Filesize
2.9MB

Download
memory/2828-8-0x00000000024E0000-0x00000000024E8000-memory.dmp

Filesize
32KB

Download