xworm | c54762e7cfed04c23c765dd85ea5e92fcdc30e34d5ff3b151595e73e50e95c03

Resubmissions

22-01-2025 15:58

250122-tewtmavmhq 10

22-01-2025 15:57

250122-td9zvsvmfq 10

22-01-2025 15:53

250122-tby5kstmhv 10

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
22-01-2025 15:53

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General

Target

Perm-spofer.exe
Size

68KB
MD5

7214f6d7b7997cbfb22a9b3e6375b918
SHA1

a9c53eb43e7b0eb1cfc0bc4714bc3816274310d9
SHA256

c54762e7cfed04c23c765dd85ea5e92fcdc30e34d5ff3b151595e73e50e95c03
SHA512

dc40ea0a445f2fd5a7c0e9a90d391d72267d02bc004af57f494e52e492d02de196c06d7335971868e55b0a8b18bc640b89f2c56837194c79227f5a48c9e8a223
SSDEEP

1536:fVNtqrwwjZ2v5yNL0c+A4qvbWWEHLhASFtx6aMrTeOg54WER:fBzByNnP4qvbWWAASbaKOg54j

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

simply-exotic.gl.at.ply.gg:27183

Attributes

Install_directory
%Temp%
install_file
USB.exe

Signatures

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral1/memory/2040-1-0x00000000010D0000-0x00000000010E8000-memory.dmp	family_xworm
behavioral1/files/0x000b0000000164b1-31.dat	family_xworm
behavioral1/memory/3060-33-0x0000000001320000-0x0000000001338000-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 8 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2516	powershell.exe
2444	powershell.exe
2932	powershell.exe
3020	powershell.exe
2764	powershell.exe
2800	powershell.exe
2260	powershell.exe
2452	powershell.exe

Executes dropped EXE 3 IoCs

pid	Process
3060	User
1088	User
1632	User

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\User = "C:\\Users\\Admin\\AppData\\Local\\Temp\\User"	Perm-spofer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\User = "C:\\Users\\Admin\\AppData\\Local\\Temp\\User"	User

Looks up external IP address via web service 2 IoCs

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

flow	ioc
4	ip-api.com
9	ip-api.com

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe
File opened for modification	C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe
File opened for modification	C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.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 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2896	schtasks.exe
2528	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2800	powershell.exe
2260	powershell.exe
2452	powershell.exe
2516	powershell.exe
2040	Perm-spofer.exe
2932	powershell.exe
3020	powershell.exe
2764	powershell.exe
1632	User

Suspicious use of AdjustPrivilegeToken 13 IoCs

description	pid	Process
Token: SeDebugPrivilege	2040	Perm-spofer.exe
Token: SeDebugPrivilege	2800	powershell.exe
Token: SeDebugPrivilege	2260	powershell.exe
Token: SeDebugPrivilege	2452	powershell.exe
Token: SeDebugPrivilege	2516	powershell.exe
Token: SeDebugPrivilege	2040	Perm-spofer.exe
Token: SeDebugPrivilege	3060	User
Token: SeDebugPrivilege	1088	User
Token: SeDebugPrivilege	1632	User
Token: SeDebugPrivilege	2932	powershell.exe
Token: SeDebugPrivilege	3020	powershell.exe
Token: SeDebugPrivilege	2764	powershell.exe
Token: SeDebugPrivilege	1632	User

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2040	Perm-spofer.exe
1632	User

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 2800	2040	Perm-spofer.exe	32
PID 2040 wrote to memory of 2800	2040	Perm-spofer.exe	32
PID 2040 wrote to memory of 2800	2040	Perm-spofer.exe	32
PID 2040 wrote to memory of 2260	2040	Perm-spofer.exe	34
PID 2040 wrote to memory of 2260	2040	Perm-spofer.exe	34
PID 2040 wrote to memory of 2260	2040	Perm-spofer.exe	34
PID 2040 wrote to memory of 2452	2040	Perm-spofer.exe	36
PID 2040 wrote to memory of 2452	2040	Perm-spofer.exe	36
PID 2040 wrote to memory of 2452	2040	Perm-spofer.exe	36
PID 2040 wrote to memory of 2516	2040	Perm-spofer.exe	38
PID 2040 wrote to memory of 2516	2040	Perm-spofer.exe	38
PID 2040 wrote to memory of 2516	2040	Perm-spofer.exe	38
PID 2040 wrote to memory of 2896	2040	Perm-spofer.exe	40
PID 2040 wrote to memory of 2896	2040	Perm-spofer.exe	40
PID 2040 wrote to memory of 2896	2040	Perm-spofer.exe	40
PID 2028 wrote to memory of 3060	2028	taskeng.exe	43
PID 2028 wrote to memory of 3060	2028	taskeng.exe	43
PID 2028 wrote to memory of 3060	2028	taskeng.exe	43
PID 2028 wrote to memory of 1088	2028	taskeng.exe	44
PID 2028 wrote to memory of 1088	2028	taskeng.exe	44
PID 2028 wrote to memory of 1088	2028	taskeng.exe	44
PID 2028 wrote to memory of 1632	2028	taskeng.exe	45
PID 2028 wrote to memory of 1632	2028	taskeng.exe	45
PID 2028 wrote to memory of 1632	2028	taskeng.exe	45
PID 1632 wrote to memory of 2444	1632	User	47
PID 1632 wrote to memory of 2444	1632	User	47
PID 1632 wrote to memory of 2444	1632	User	47
PID 1632 wrote to memory of 2932	1632	User	49
PID 1632 wrote to memory of 2932	1632	User	49
PID 1632 wrote to memory of 2932	1632	User	49
PID 1632 wrote to memory of 3020	1632	User	51
PID 1632 wrote to memory of 3020	1632	User	51
PID 1632 wrote to memory of 3020	1632	User	51
PID 1632 wrote to memory of 2764	1632	User	53
PID 1632 wrote to memory of 2764	1632	User	53
PID 1632 wrote to memory of 2764	1632	User	53
PID 1632 wrote to memory of 2528	1632	User	55
PID 1632 wrote to memory of 2528	1632	User	55
PID 1632 wrote to memory of 2528	1632	User	55

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\Perm-spofer.exe
"C:\Users\Admin\AppData\Local\Temp\Perm-spofer.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2040
- 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\Perm-spofer.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2800
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Perm-spofer.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2260
- 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\User'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2452
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'User'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2516
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "User" /tr "C:\Users\Admin\AppData\Local\Temp\User"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2896

C:\Windows\system32\taskeng.exe
taskeng.exe {9D172983-7918-4354-9940-9AB08FB04EBD} S-1-5-21-1163522206-1469769407-485553996-1000:PJCSDMRP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Users\Admin\AppData\Local\Temp\User
  C:\Users\Admin\AppData\Local\Temp\User
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:3060
- C:\Users\Admin\AppData\Local\Temp\User
  C:\Users\Admin\AppData\Local\Temp\User
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1088
- C:\Users\Admin\AppData\Local\Temp\User
  C:\Users\Admin\AppData\Local\Temp\User
  2⤵
  - 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:1632
- - 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\User'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    PID:2444
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'User'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Drops file in System32 directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2932
- - 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\User'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Drops file in System32 directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3020
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'User'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Drops file in System32 directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2764
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "User" /tr "C:\Users\Admin\AppData\Local\Temp\User"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2528

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:\Users\Admin\AppData\Local\Temp\User

Filesize
68KB

MD5
7214f6d7b7997cbfb22a9b3e6375b918

SHA1
a9c53eb43e7b0eb1cfc0bc4714bc3816274310d9

SHA256
c54762e7cfed04c23c765dd85ea5e92fcdc30e34d5ff3b151595e73e50e95c03

SHA512
dc40ea0a445f2fd5a7c0e9a90d391d72267d02bc004af57f494e52e492d02de196c06d7335971868e55b0a8b18bc640b89f2c56837194c79227f5a48c9e8a223

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

Filesize
7KB

MD5
4d622cf16574e6922d473b3e245bb24d

SHA1
5b3eb63e48b4093b95b985c03d30a005d6c365f5

SHA256
a4c4a81774179b5b137e88f4dbaa3e5f03e59a143d8e97ee6a28f30a55d7bfb8

SHA512
57fd47dbbee24a1e0a29d93b65a8ccf50700d91cef33849dc4e6a062c758034db75027cbb86a57b8d2ef5b779983681d92e15854da140dc1c4786e5db0975984

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\NQFGFGEJHEG4FZAWQ81T.temp

Filesize
7KB

MD5
ae7eed040c7b537d8160e73efa3d08cf

SHA1
f2bb0bb7a8113f84f00dd7557b7ea402b34a992b

SHA256
fd141af2d89fc7176c0077e11e72ad986bcd463fb3a0e9805b5afe85fd31cf33

SHA512
7cc7269888d01d38227228a5426a6e16cd8dbaab9df58e48655d10c6caf699343109183eb10e5c9dc24201a7c032ac76f86d08350b363e92448f33702f4bd5c4

Download Submit
memory/2040-35-0x000007FEF52A0000-0x000007FEF5C8C000-memory.dmp

Filesize
9.9MB

Download
memory/2040-1-0x00000000010D0000-0x00000000010E8000-memory.dmp

Filesize
96KB

Download
memory/2040-2-0x000007FEF52A0000-0x000007FEF5C8C000-memory.dmp

Filesize
9.9MB

Download
memory/2040-0-0x000007FEF52A3000-0x000007FEF52A4000-memory.dmp

Filesize
4KB

Download
memory/2040-28-0x000007FEF52A3000-0x000007FEF52A4000-memory.dmp

Filesize
4KB

Download
memory/2040-29-0x000007FEF52A0000-0x000007FEF5C8C000-memory.dmp

Filesize
9.9MB

Download
memory/2260-16-0x0000000002240000-0x0000000002248000-memory.dmp

Filesize
32KB

Download
memory/2260-15-0x000000001B5C0000-0x000000001B8A2000-memory.dmp

Filesize
2.9MB

Download
memory/2800-9-0x0000000001FC0000-0x0000000001FC8000-memory.dmp

Filesize
32KB

Download
memory/2800-8-0x000000001B6D0000-0x000000001B9B2000-memory.dmp

Filesize
2.9MB

Download
memory/2800-7-0x0000000002BD0000-0x0000000002C50000-memory.dmp

Filesize
512KB

Download
memory/3060-33-0x0000000001320000-0x0000000001338000-memory.dmp

Filesize
96KB

Download