xworm | 3e6f0de70c94df15b3aecb8ce4370e26b62fa38a24bf3710d0d9f0a28b4da656

Analysis

max time kernel
134s
max time network
152s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 09:39

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General

Target

BoostFPS.exe
Size

98KB
MD5

20f5290def51514fefaed2b744ed961c
SHA1

546f5c611c1d35c5104e2792c76934746f637987
SHA256

3e6f0de70c94df15b3aecb8ce4370e26b62fa38a24bf3710d0d9f0a28b4da656
SHA512

578c4cc3b0375587d13f4b6f28d063322aa4df1dc3a439bc2f22da57475d191b78f7cc6590483ba4462af5a70d7aa73fb6784ae527e46f8e64cb31b3274ef3e2
SSDEEP

3072:gZtcSVYnM7ByozguHogUDqGB5xY7iBCYs9:gXFyaByoUuInqs0

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

45.141.27.248:7777

Attributes

Install_directory
%AppData%
install_file
svchost.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/files/0x0008000000015d29-13.dat	family_xworm
behavioral1/memory/2676-15-0x00000000003C0000-0x00000000003DA000-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
1692	powershell.exe
576	powershell.exe
2264	powershell.exe
2336	powershell.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 4 IoCs

pid	Process
2676	svchost.exe
1660	svchost.exe
1360	svchost.exe
2496	svchost.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	svchost.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
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
2820	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1692	powershell.exe
576	powershell.exe
2264	powershell.exe
2336	powershell.exe
2676	svchost.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	2676	svchost.exe
Token: SeDebugPrivilege	1692	powershell.exe
Token: SeDebugPrivilege	576	powershell.exe
Token: SeDebugPrivilege	2264	powershell.exe
Token: SeDebugPrivilege	2336	powershell.exe
Token: SeDebugPrivilege	2676	svchost.exe
Token: SeDebugPrivilege	1660	svchost.exe
Token: SeDebugPrivilege	1360	svchost.exe
Token: SeDebugPrivilege	2496	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2676	svchost.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 2800	2332	BoostFPS.exe	30
PID 2332 wrote to memory of 2800	2332	BoostFPS.exe	30
PID 2332 wrote to memory of 2800	2332	BoostFPS.exe	30
PID 2332 wrote to memory of 2676	2332	BoostFPS.exe	32
PID 2332 wrote to memory of 2676	2332	BoostFPS.exe	32
PID 2332 wrote to memory of 2676	2332	BoostFPS.exe	32
PID 2800 wrote to memory of 2584	2800	cmd.exe	33
PID 2800 wrote to memory of 2584	2800	cmd.exe	33
PID 2800 wrote to memory of 2584	2800	cmd.exe	33
PID 2800 wrote to memory of 2652	2800	cmd.exe	34
PID 2800 wrote to memory of 2652	2800	cmd.exe	34
PID 2800 wrote to memory of 2652	2800	cmd.exe	34
PID 2800 wrote to memory of 2848	2800	cmd.exe	35
PID 2800 wrote to memory of 2848	2800	cmd.exe	35
PID 2800 wrote to memory of 2848	2800	cmd.exe	35
PID 2676 wrote to memory of 1692	2676	svchost.exe	37
PID 2676 wrote to memory of 1692	2676	svchost.exe	37
PID 2676 wrote to memory of 1692	2676	svchost.exe	37
PID 2676 wrote to memory of 576	2676	svchost.exe	39
PID 2676 wrote to memory of 576	2676	svchost.exe	39
PID 2676 wrote to memory of 576	2676	svchost.exe	39
PID 2676 wrote to memory of 2264	2676	svchost.exe	41
PID 2676 wrote to memory of 2264	2676	svchost.exe	41
PID 2676 wrote to memory of 2264	2676	svchost.exe	41
PID 2676 wrote to memory of 2336	2676	svchost.exe	43
PID 2676 wrote to memory of 2336	2676	svchost.exe	43
PID 2676 wrote to memory of 2336	2676	svchost.exe	43
PID 2676 wrote to memory of 2820	2676	svchost.exe	45
PID 2676 wrote to memory of 2820	2676	svchost.exe	45
PID 2676 wrote to memory of 2820	2676	svchost.exe	45
PID 1880 wrote to memory of 1660	1880	taskeng.exe	48
PID 1880 wrote to memory of 1660	1880	taskeng.exe	48
PID 1880 wrote to memory of 1660	1880	taskeng.exe	48
PID 1880 wrote to memory of 1360	1880	taskeng.exe	50
PID 1880 wrote to memory of 1360	1880	taskeng.exe	50
PID 1880 wrote to memory of 1360	1880	taskeng.exe	50
PID 1880 wrote to memory of 2496	1880	taskeng.exe	51
PID 1880 wrote to memory of 2496	1880	taskeng.exe	51
PID 1880 wrote to memory of 2496	1880	taskeng.exe	51

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\BoostFPS.exe
"C:\Users\Admin\AppData\Local\Temp\BoostFPS.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2332
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\FPS_BY FILMGODX.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2800
- - C:\Windows\system32\mode.com
    Mode 100,25
    3⤵
    PID:2584
- - C:\Windows\system32\chcp.com
    chcp 65001
    3⤵
    PID:2652
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "prompt #$H#$E# & echo on & for %b in (1) do rem"
    3⤵
    PID:2848
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - 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:2676
- - 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\svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1692
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:576
- - 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\svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2264
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2336
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Roaming\svchost.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2820

C:\Windows\system32\taskeng.exe
taskeng.exe {ACDF7151-E04F-4927-81AB-3348B1D72FC1} S-1-5-21-3551809350-4263495960-1443967649-1000:NNYJZAHP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1880
- C:\Users\Admin\AppData\Roaming\svchost.exe
  C:\Users\Admin\AppData\Roaming\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1660
- C:\Users\Admin\AppData\Roaming\svchost.exe
  C:\Users\Admin\AppData\Roaming\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1360
- C:\Users\Admin\AppData\Roaming\svchost.exe
  C:\Users\Admin\AppData\Roaming\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2496

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\Roaming\FPS_BY FILMGODX.bat

Filesize
6KB

MD5
73fa858851ab9f0cb193111d183a3ba5

SHA1
3b6b20d02ce3e39a45b94984d150009e6ea501cb

SHA256
c63a1b8c63acb2c4cab3617934a7a88a7b7dc19a2a1144b7f1b1207ff95f26bb

SHA512
a08237eff698b5fee0909d1fc71a317d64408fd6cce378a259f7d3ac52577a927b553a10182d5d6552868d21a41a961760f49a987bbbaeadabefeee659457ba4

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

Filesize
7KB

MD5
e044aed26bdda3df698588dd46c9549f

SHA1
a94b434c05e4ff8744592990d0fc9200d0e3a046

SHA256
70910f028edf1982fe46f3539286b85c3cd56e6d4a79fa4c0a9294aaa5ccec74

SHA512
f4c4d6bd989dce42e8cd1bc6f5b7d8dc8ae3e0b64953bae5be891335169f2631bae2625a5ff4d3ef4e40ae5a352ff1473177541d4e35fa554df1b2a1bf861930

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe

Filesize
77KB

MD5
a50564ade45c0a409bb38c06673d6ab9

SHA1
91fd3510c4ccdc50d0eb08249c945271171d5f9f

SHA256
120b13c9edbd9f2fff0ca2e31efb17cef3cac1ea1b4025e8bc7b512f74021a6e

SHA512
7fb99769609027e850c5d6d69912b5dfe82025f24947fa9bff8d88a966ffda315dee8c77086ef171cf75089b6b4d6cb98975b53cbba040c40af50248c4f65cd0

Download Submit
memory/576-30-0x000000001B6A0000-0x000000001B982000-memory.dmp

Filesize
2.9MB

Download
memory/576-31-0x0000000001E00000-0x0000000001E08000-memory.dmp

Filesize
32KB

Download
memory/1692-23-0x000000001B610000-0x000000001B8F2000-memory.dmp

Filesize
2.9MB

Download
memory/1692-24-0x0000000001FD0000-0x0000000001FD8000-memory.dmp

Filesize
32KB

Download
memory/2332-0-0x000007FEF5353000-0x000007FEF5354000-memory.dmp

Filesize
4KB

Download
memory/2332-1-0x0000000000FE0000-0x0000000000FFE000-memory.dmp

Filesize
120KB

Download
memory/2676-15-0x00000000003C0000-0x00000000003DA000-memory.dmp

Filesize
104KB

Download
memory/2676-17-0x000007FEF5350000-0x000007FEF5D3C000-memory.dmp

Filesize
9.9MB

Download
memory/2676-18-0x000007FEF5350000-0x000007FEF5D3C000-memory.dmp

Filesize
9.9MB

Download
memory/2676-44-0x000007FEF5350000-0x000007FEF5D3C000-memory.dmp

Filesize
9.9MB

Download
memory/2676-46-0x000007FEF5350000-0x000007FEF5D3C000-memory.dmp

Filesize
9.9MB

Download