xworm | d53fbabae0eae53204fb4536ffee7137968b5f4a08dd0c79a2992e620909353b

Analysis

max time kernel
146s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05/08/2024, 02:08

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General

Target
512ff74ca594632b7c8469ed3a997a38bd91730fe0b35008737dd7d02cb2d0ec.exe
Size 8.0MB
Sample240805-ckpttstfmm
SHA256 512ff74ca594632b7c8469ed3a997a38bd91730fe0b35008737dd7d02cb2d0ec
MD5 af9a5b60af3c8ce7e3ba926759008942
SHA1 b4c20593f2f814520c4801d67cd39be7c7f1fa94
SHA512 c0ed57de274c1485484d64f6f5da0b11791b565119eb5bfa9a6a8a62a40f848426a497822899f858517ccc528b5a7e74259a08032a4b80db0a2b7bcfe0299889
SSDEEP 196608:JWTyWOSJ7KqHzUr9/QWTNBWxQGT0hEaqbAazMmU:JMXOkrQr9jWp0OaqbJ
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm agilenet execution persistence rat trojan

Malware Config

Extracted

Family

xworm

jajaovh.duckdns.org:1605

Attributes

Install_directory
%Temp%
install_file
USB.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023436-53.dat	family_xworm
behavioral2/memory/1404-62-0x00000000001B0000-0x00000000001C8000-memory.dmp	family_xworm

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

Command and Scripting Interpreter: PowerShell 1 TTPs 6 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3916	powershell.exe
4384	powershell.exe
3168	powershell.exe
5012	powershell.exe
4352	powershell.exe
1988	powershell.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	512ff74ca594632b7c8469ed3a997a38bd91730fe0b35008737dd7d02cb2d0ec.exe
Key value queried	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	Windows Driver Fondation.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 4 IoCs

pid	Process
3896	XWorm V5.0.exe
1404	Windows Driver Fondation.exe
1704	Windows Driver Fondation
2428	Windows Driver Fondation

Loads dropped DLL 1 IoCs

pid	Process
3896	XWorm V5.0.exe

Obfuscated with Agile.Net obfuscator 2 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

resource	yara_rule
behavioral2/files/0x000800000001da42-23.dat	agile_net
behavioral2/memory/3896-31-0x000001F59E320000-0x000001F59ED92000-memory.dmp	agile_net

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-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Driver Fondation = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows Driver Fondation"	Windows Driver Fondation.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.

flow	ioc
16	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
2972	schtasks.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
3916	powershell.exe
3916	powershell.exe
4384	powershell.exe
4384	powershell.exe
3168	powershell.exe
3168	powershell.exe
5012	powershell.exe
5012	powershell.exe
4352	powershell.exe
4352	powershell.exe
1988	powershell.exe
1988	powershell.exe
1404	Windows Driver Fondation.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeDebugPrivilege	3916	powershell.exe
Token: SeDebugPrivilege	4384	powershell.exe
Token: SeDebugPrivilege	1404	Windows Driver Fondation.exe
Token: SeDebugPrivilege	3896	XWorm V5.0.exe
Token: SeDebugPrivilege	3168	powershell.exe
Token: SeDebugPrivilege	5012	powershell.exe
Token: SeDebugPrivilege	4352	powershell.exe
Token: SeDebugPrivilege	1988	powershell.exe
Token: SeDebugPrivilege	1404	Windows Driver Fondation.exe
Token: SeDebugPrivilege	1704	Windows Driver Fondation
Token: SeDebugPrivilege	2428	Windows Driver Fondation

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1404	Windows Driver Fondation.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4480 wrote to memory of 3916	4480	512ff74ca594632b7c8469ed3a997a38bd91730fe0b35008737dd7d02cb2d0ec.exe	86
PID 4480 wrote to memory of 3916	4480	512ff74ca594632b7c8469ed3a997a38bd91730fe0b35008737dd7d02cb2d0ec.exe	86
PID 4480 wrote to memory of 3896	4480	512ff74ca594632b7c8469ed3a997a38bd91730fe0b35008737dd7d02cb2d0ec.exe	88
PID 4480 wrote to memory of 3896	4480	512ff74ca594632b7c8469ed3a997a38bd91730fe0b35008737dd7d02cb2d0ec.exe	88
PID 4480 wrote to memory of 4384	4480	512ff74ca594632b7c8469ed3a997a38bd91730fe0b35008737dd7d02cb2d0ec.exe	89
PID 4480 wrote to memory of 4384	4480	512ff74ca594632b7c8469ed3a997a38bd91730fe0b35008737dd7d02cb2d0ec.exe	89
PID 4480 wrote to memory of 1404	4480	512ff74ca594632b7c8469ed3a997a38bd91730fe0b35008737dd7d02cb2d0ec.exe	91
PID 4480 wrote to memory of 1404	4480	512ff74ca594632b7c8469ed3a997a38bd91730fe0b35008737dd7d02cb2d0ec.exe	91
PID 1404 wrote to memory of 3168	1404	Windows Driver Fondation.exe	96
PID 1404 wrote to memory of 3168	1404	Windows Driver Fondation.exe	96
PID 1404 wrote to memory of 5012	1404	Windows Driver Fondation.exe	98
PID 1404 wrote to memory of 5012	1404	Windows Driver Fondation.exe	98
PID 1404 wrote to memory of 4352	1404	Windows Driver Fondation.exe	100
PID 1404 wrote to memory of 4352	1404	Windows Driver Fondation.exe	100
PID 1404 wrote to memory of 1988	1404	Windows Driver Fondation.exe	102
PID 1404 wrote to memory of 1988	1404	Windows Driver Fondation.exe	102
PID 1404 wrote to memory of 2972	1404	Windows Driver Fondation.exe	104
PID 1404 wrote to memory of 2972	1404	Windows Driver Fondation.exe	104

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\512ff74ca594632b7c8469ed3a997a38bd91730fe0b35008737dd7d02cb2d0ec.exe
"C:\Users\Admin\AppData\Local\Temp\512ff74ca594632b7c8469ed3a997a38bd91730fe0b35008737dd7d02cb2d0ec.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4480
- 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\XWorm V5.0.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3916
- C:\Users\Admin\AppData\Local\Temp\XWorm V5.0.exe
  "C:\Users\Admin\AppData\Local\Temp\XWorm V5.0.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of AdjustPrivilegeToken
  PID:3896
- 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\Windows Driver Fondation.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4384
- C:\Users\Admin\AppData\Local\Temp\Windows Driver Fondation.exe
  "C:\Users\Admin\AppData\Local\Temp\Windows Driver Fondation.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1404
- - 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\Windows Driver Fondation.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3168
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Windows Driver Fondation.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:5012
- - 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\Windows Driver Fondation'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4352
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Windows Driver Fondation'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1988
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Windows Driver Fondation" /tr "C:\Users\Admin\AppData\Local\Temp\Windows Driver Fondation"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2972

C:\Users\Admin\AppData\Local\Temp\Windows Driver Fondation
"C:\Users\Admin\AppData\Local\Temp\Windows Driver Fondation"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1704

C:\Users\Admin\AppData\Local\Temp\Windows Driver Fondation
"C:\Users\Admin\AppData\Local\Temp\Windows Driver Fondation"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2428

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

Windows Driver Fondation.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Windows Driver Fondation.log
Size 654B
SHA256 e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
MD5 2ff39f6c7249774be85fd60a8f9a245e
SHA1 684ff36b31aedc1e587c8496c02722c6698c1c4e
SHA512 1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1
MD5 SHA1 SHA512

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powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 2KB
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
MD5 SHA1 SHA512

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