xworm | 4f6280e3269da904b7eb6199d15e9c51a144e70f4a2d38ebff7f1275becb6346

Analysis

max time kernel
149s
max time network
153s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241023-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
17-11-2024 02:44

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General

Target

WizClient.exe
Size

67KB
MD5

054eca6f0e8e8e442fe375a0f8ae2cbd
SHA1

51777dd9de3f45f86e20f88e886f67d7af724621
SHA256

4f6280e3269da904b7eb6199d15e9c51a144e70f4a2d38ebff7f1275becb6346
SHA512

1a80bc3cb4939133ae950bc03dcf712d974363177f29966286b1c080c977285d213f564700eb32247416843e608f7c7cdbb23d9efa395da361539dd4b294123d
SSDEEP

1536:vDaqXfs7jwSpTkgbHl8zlaL6MOOvr0acWb:vDaqXfMjwKbHEFOvr2m

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

while-stuffed.gl.at.ply.gg:61275

Attributes

Install_directory
%ProgramData%
install_file
USB.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/memory/2340-1-0x00000000006A0000-0x00000000006B8000-memory.dmp	family_xworm
behavioral1/files/0x0030000000045028-51.dat	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 3 IoCs

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

execution

PowerShell

T1059.001

pid	Process
3420	powershell.exe
2900	powershell.exe
3476	powershell.exe

Checks computer location settings 2 TTPs 1 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-1-5-21-1669812756-2240353048-2660728061-1000\Control Panel\International\Geo\Nation	WizClient.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 3 IoCs

pid	Process
1696	WizClient.exe
4128	WizClient.exe
1736	WizClient.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-1-5-21-1669812756-2240353048-2660728061-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WizClient = "C:\\ProgramData\\WizClient.exe"	WizClient.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
15	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
704	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
3476	powershell.exe
3476	powershell.exe
3420	powershell.exe
3420	powershell.exe
2900	powershell.exe
2900	powershell.exe
2340	WizClient.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2340	WizClient.exe
Token: SeDebugPrivilege	3476	powershell.exe
Token: SeIncreaseQuotaPrivilege	3476	powershell.exe
Token: SeSecurityPrivilege	3476	powershell.exe
Token: SeTakeOwnershipPrivilege	3476	powershell.exe
Token: SeLoadDriverPrivilege	3476	powershell.exe
Token: SeSystemProfilePrivilege	3476	powershell.exe
Token: SeSystemtimePrivilege	3476	powershell.exe
Token: SeProfSingleProcessPrivilege	3476	powershell.exe
Token: SeIncBasePriorityPrivilege	3476	powershell.exe
Token: SeCreatePagefilePrivilege	3476	powershell.exe
Token: SeBackupPrivilege	3476	powershell.exe
Token: SeRestorePrivilege	3476	powershell.exe
Token: SeShutdownPrivilege	3476	powershell.exe
Token: SeDebugPrivilege	3476	powershell.exe
Token: SeSystemEnvironmentPrivilege	3476	powershell.exe
Token: SeRemoteShutdownPrivilege	3476	powershell.exe
Token: SeUndockPrivilege	3476	powershell.exe
Token: SeManageVolumePrivilege	3476	powershell.exe
Token: 33	3476	powershell.exe
Token: 34	3476	powershell.exe
Token: 35	3476	powershell.exe
Token: 36	3476	powershell.exe
Token: SeDebugPrivilege	3420	powershell.exe
Token: SeIncreaseQuotaPrivilege	3420	powershell.exe
Token: SeSecurityPrivilege	3420	powershell.exe
Token: SeTakeOwnershipPrivilege	3420	powershell.exe
Token: SeLoadDriverPrivilege	3420	powershell.exe
Token: SeSystemProfilePrivilege	3420	powershell.exe
Token: SeSystemtimePrivilege	3420	powershell.exe
Token: SeProfSingleProcessPrivilege	3420	powershell.exe
Token: SeIncBasePriorityPrivilege	3420	powershell.exe
Token: SeCreatePagefilePrivilege	3420	powershell.exe
Token: SeBackupPrivilege	3420	powershell.exe
Token: SeRestorePrivilege	3420	powershell.exe
Token: SeShutdownPrivilege	3420	powershell.exe
Token: SeDebugPrivilege	3420	powershell.exe
Token: SeSystemEnvironmentPrivilege	3420	powershell.exe
Token: SeRemoteShutdownPrivilege	3420	powershell.exe
Token: SeUndockPrivilege	3420	powershell.exe
Token: SeManageVolumePrivilege	3420	powershell.exe
Token: 33	3420	powershell.exe
Token: 34	3420	powershell.exe
Token: 35	3420	powershell.exe
Token: 36	3420	powershell.exe
Token: SeDebugPrivilege	2900	powershell.exe
Token: SeIncreaseQuotaPrivilege	2900	powershell.exe
Token: SeSecurityPrivilege	2900	powershell.exe
Token: SeTakeOwnershipPrivilege	2900	powershell.exe
Token: SeLoadDriverPrivilege	2900	powershell.exe
Token: SeSystemProfilePrivilege	2900	powershell.exe
Token: SeSystemtimePrivilege	2900	powershell.exe
Token: SeProfSingleProcessPrivilege	2900	powershell.exe
Token: SeIncBasePriorityPrivilege	2900	powershell.exe
Token: SeCreatePagefilePrivilege	2900	powershell.exe
Token: SeBackupPrivilege	2900	powershell.exe
Token: SeRestorePrivilege	2900	powershell.exe
Token: SeShutdownPrivilege	2900	powershell.exe
Token: SeDebugPrivilege	2900	powershell.exe
Token: SeSystemEnvironmentPrivilege	2900	powershell.exe
Token: SeRemoteShutdownPrivilege	2900	powershell.exe
Token: SeUndockPrivilege	2900	powershell.exe
Token: SeManageVolumePrivilege	2900	powershell.exe
Token: 33	2900	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2340	WizClient.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 3476	2340	WizClient.exe	85
PID 2340 wrote to memory of 3476	2340	WizClient.exe	85
PID 2340 wrote to memory of 3420	2340	WizClient.exe	89
PID 2340 wrote to memory of 3420	2340	WizClient.exe	89
PID 2340 wrote to memory of 2900	2340	WizClient.exe	91
PID 2340 wrote to memory of 2900	2340	WizClient.exe	91
PID 2340 wrote to memory of 704	2340	WizClient.exe	94
PID 2340 wrote to memory of 704	2340	WizClient.exe	94

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\WizClient.exe
"C:\Users\Admin\AppData\Local\Temp\WizClient.exe"
1⤵
- Checks computer location settings
- 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:2340
- 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\WizClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3476
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'WizClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3420
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\WizClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2900
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "WizClient" /tr "C:\ProgramData\WizClient.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:704

C:\ProgramData\WizClient.exe
"C:\ProgramData\WizClient.exe"
1⤵
- Executes dropped EXE
PID:1696

C:\ProgramData\WizClient.exe
"C:\ProgramData\WizClient.exe"
1⤵
- Executes dropped EXE
PID:4128

C:\ProgramData\WizClient.exe
"C:\ProgramData\WizClient.exe"
1⤵
- Executes dropped EXE
PID:1736

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:\ProgramData\WizClient.exe

Filesize
67KB

MD5
054eca6f0e8e8e442fe375a0f8ae2cbd

SHA1
51777dd9de3f45f86e20f88e886f67d7af724621

SHA256
4f6280e3269da904b7eb6199d15e9c51a144e70f4a2d38ebff7f1275becb6346

SHA512
1a80bc3cb4939133ae950bc03dcf712d974363177f29966286b1c080c977285d213f564700eb32247416843e608f7c7cdbb23d9efa395da361539dd4b294123d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\WizClient.exe.log

Filesize
654B

MD5
11c6e74f0561678d2cf7fc075a6cc00c

SHA1
535ee79ba978554abcb98c566235805e7ea18490

SHA256
d39a78fabca39532fcb85ce908781a75132e1bd01cc50a3b290dd87127837d63

SHA512
32c63d67bf512b42e7f57f71287b354200126cb417ef9d869c72e0b9388a7c2f5e3b61f303f1353baa1bf482d0f17e06e23c9f50b2f1babd4d958b6da19c40b0

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
3KB

MD5
3eb3833f769dd890afc295b977eab4b4

SHA1
e857649b037939602c72ad003e5d3698695f436f

SHA256
c485a6e2fd17c342fca60060f47d6a5655a65a412e35e001bb5bf88d96e6e485

SHA512
c24bbc8f278478d43756807b8c584d4e3fb2289db468bc92986a489f74a8da386a667a758360a397e77e018e363be8912ac260072fa3e31117ad0599ac749e72

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
6a807b1c91ac66f33f88a787d64904c1

SHA1
83c554c7de04a8115c9005709e5cd01fca82c5d3

SHA256
155314c1c86d8d4e5b802f1eef603c5dd4a2f7c949f069a38af5ba4959bd8256

SHA512
29f2d9f30fc081e7fe6e9fb772c810c9be0422afdc6aff5a286f49a990ededebcf0d083798c2d9f41ad8434393c6d0f5fa6df31226d9c3511ba2a41eb4a65200

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
0588388ba889090d352aaf2786dcbb4e

SHA1
76ee620137619824a49ac06d999890aa2e0fe4f5

SHA256
1fd6c025e5a91c737a6b3eefb1720818b03a34b723adc9d05ddef7c51d400fbd

SHA512
6a8243f7d60f21f193668b6424b7f7e35b0d77e714c977bdc7371be38f4e34146e63fc91c6e72415a13537ad29a8ff9ca887ff6c161aba6ad359128c21f1b1d1

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_a4oeswu5.yrm.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2340-1-0x00000000006A0000-0x00000000006B8000-memory.dmp

Filesize
96KB

Download
memory/2340-2-0x00007FFC03DE0000-0x00007FFC048A2000-memory.dmp

Filesize
10.8MB

Download
memory/2340-0-0x00007FFC03DE3000-0x00007FFC03DE5000-memory.dmp

Filesize
8KB

Download
memory/2340-48-0x00007FFC03DE0000-0x00007FFC048A2000-memory.dmp

Filesize
10.8MB

Download
memory/3476-4-0x00007FFC03DE0000-0x00007FFC048A2000-memory.dmp

Filesize
10.8MB

Download
memory/3476-20-0x00007FFC03DE0000-0x00007FFC048A2000-memory.dmp

Filesize
10.8MB

Download
memory/3476-19-0x00007FFC03DE0000-0x00007FFC048A2000-memory.dmp

Filesize
10.8MB

Download
memory/3476-16-0x00007FFC03DE0000-0x00007FFC048A2000-memory.dmp

Filesize
10.8MB

Download
memory/3476-15-0x000002A87CAA0000-0x000002A87CAC2000-memory.dmp

Filesize
136KB

Download
memory/3476-5-0x00007FFC03DE0000-0x00007FFC048A2000-memory.dmp

Filesize
10.8MB

Download
memory/3476-3-0x00007FFC03DE0000-0x00007FFC048A2000-memory.dmp

Filesize
10.8MB

Download