xworm | dedd4c249a6a78e8e2603e7bf8227bbcd1dcca0e0f272ec204cf4a1a61dae7d9

Analysis

max time kernel
30s
max time network
34s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241023-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
15-11-2024 17:39

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General

Target

FullOption_2.1Xenos.exe
Size

4.0MB
MD5

c442a9b9299246b2e5683641a4341641
SHA1

31f41c27ceacc503f33ea72c1ac7c077bc5d9235
SHA256

dedd4c249a6a78e8e2603e7bf8227bbcd1dcca0e0f272ec204cf4a1a61dae7d9
SHA512

fc605adcf43c6f4ae4b4903cf1ba43bc447ddecbbaa8e412845b0ddfee4b36be55e32b42b3005c7c67bb59f5f2a4c9271baa97eb497c4998883f7e69ec8bdd36
SSDEEP

98304:mer3mJdJ0Gz+yQ3zkgHC3lD1qhPEeXkZGRaGxOJx1/q:jSJdJrz+yOkg8BQPfXYoI1

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

45.141.27.248:7777

Attributes

Install_directory
%ProgramData%
install_file
svchost.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/files/0x0028000000045059-17.dat	family_xworm
behavioral1/memory/4320-28-0x00000000000A0000-0x00000000000B8000-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
4644	powershell.exe
888	powershell.exe
5076	powershell.exe
3276	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-1-5-21-2319007114-3335580451-2147236418-1000\Control Panel\International\Geo\Nation	FullOption_2.1Xenos.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2319007114-3335580451-2147236418-1000\Control Panel\International\Geo\Nation	svchost.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 2 IoCs

pid	Process
1688	FullOption_2.1Xenos.exe
4320	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-1-5-21-2319007114-3335580451-2147236418-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\ProgramData\\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
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
64	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4644	powershell.exe
4644	powershell.exe
888	powershell.exe
888	powershell.exe
5076	powershell.exe
5076	powershell.exe
3276	powershell.exe
3276	powershell.exe
4320	svchost.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4320	svchost.exe
Token: SeDebugPrivilege	4644	powershell.exe
Token: SeIncreaseQuotaPrivilege	4644	powershell.exe
Token: SeSecurityPrivilege	4644	powershell.exe
Token: SeTakeOwnershipPrivilege	4644	powershell.exe
Token: SeLoadDriverPrivilege	4644	powershell.exe
Token: SeSystemProfilePrivilege	4644	powershell.exe
Token: SeSystemtimePrivilege	4644	powershell.exe
Token: SeProfSingleProcessPrivilege	4644	powershell.exe
Token: SeIncBasePriorityPrivilege	4644	powershell.exe
Token: SeCreatePagefilePrivilege	4644	powershell.exe
Token: SeBackupPrivilege	4644	powershell.exe
Token: SeRestorePrivilege	4644	powershell.exe
Token: SeShutdownPrivilege	4644	powershell.exe
Token: SeDebugPrivilege	4644	powershell.exe
Token: SeSystemEnvironmentPrivilege	4644	powershell.exe
Token: SeRemoteShutdownPrivilege	4644	powershell.exe
Token: SeUndockPrivilege	4644	powershell.exe
Token: SeManageVolumePrivilege	4644	powershell.exe
Token: 33	4644	powershell.exe
Token: 34	4644	powershell.exe
Token: 35	4644	powershell.exe
Token: 36	4644	powershell.exe
Token: SeDebugPrivilege	888	powershell.exe
Token: SeIncreaseQuotaPrivilege	888	powershell.exe
Token: SeSecurityPrivilege	888	powershell.exe
Token: SeTakeOwnershipPrivilege	888	powershell.exe
Token: SeLoadDriverPrivilege	888	powershell.exe
Token: SeSystemProfilePrivilege	888	powershell.exe
Token: SeSystemtimePrivilege	888	powershell.exe
Token: SeProfSingleProcessPrivilege	888	powershell.exe
Token: SeIncBasePriorityPrivilege	888	powershell.exe
Token: SeCreatePagefilePrivilege	888	powershell.exe
Token: SeBackupPrivilege	888	powershell.exe
Token: SeRestorePrivilege	888	powershell.exe
Token: SeShutdownPrivilege	888	powershell.exe
Token: SeDebugPrivilege	888	powershell.exe
Token: SeSystemEnvironmentPrivilege	888	powershell.exe
Token: SeRemoteShutdownPrivilege	888	powershell.exe
Token: SeUndockPrivilege	888	powershell.exe
Token: SeManageVolumePrivilege	888	powershell.exe
Token: 33	888	powershell.exe
Token: 34	888	powershell.exe
Token: 35	888	powershell.exe
Token: 36	888	powershell.exe
Token: SeDebugPrivilege	5076	powershell.exe
Token: SeIncreaseQuotaPrivilege	5076	powershell.exe
Token: SeSecurityPrivilege	5076	powershell.exe
Token: SeTakeOwnershipPrivilege	5076	powershell.exe
Token: SeLoadDriverPrivilege	5076	powershell.exe
Token: SeSystemProfilePrivilege	5076	powershell.exe
Token: SeSystemtimePrivilege	5076	powershell.exe
Token: SeProfSingleProcessPrivilege	5076	powershell.exe
Token: SeIncBasePriorityPrivilege	5076	powershell.exe
Token: SeCreatePagefilePrivilege	5076	powershell.exe
Token: SeBackupPrivilege	5076	powershell.exe
Token: SeRestorePrivilege	5076	powershell.exe
Token: SeShutdownPrivilege	5076	powershell.exe
Token: SeDebugPrivilege	5076	powershell.exe
Token: SeSystemEnvironmentPrivilege	5076	powershell.exe
Token: SeRemoteShutdownPrivilege	5076	powershell.exe
Token: SeUndockPrivilege	5076	powershell.exe
Token: SeManageVolumePrivilege	5076	powershell.exe
Token: 33	5076	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4320	svchost.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3964 wrote to memory of 1688	3964	FullOption_2.1Xenos.exe	81
PID 3964 wrote to memory of 1688	3964	FullOption_2.1Xenos.exe	81
PID 3964 wrote to memory of 4320	3964	FullOption_2.1Xenos.exe	82
PID 3964 wrote to memory of 4320	3964	FullOption_2.1Xenos.exe	82
PID 4320 wrote to memory of 4644	4320	svchost.exe	88
PID 4320 wrote to memory of 4644	4320	svchost.exe	88
PID 4320 wrote to memory of 888	4320	svchost.exe	91
PID 4320 wrote to memory of 888	4320	svchost.exe	91
PID 4320 wrote to memory of 5076	4320	svchost.exe	93
PID 4320 wrote to memory of 5076	4320	svchost.exe	93
PID 4320 wrote to memory of 3276	4320	svchost.exe	95
PID 4320 wrote to memory of 3276	4320	svchost.exe	95
PID 4320 wrote to memory of 64	4320	svchost.exe	98
PID 4320 wrote to memory of 64	4320	svchost.exe	98

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\FullOption_2.1Xenos.exe
"C:\Users\Admin\AppData\Local\Temp\FullOption_2.1Xenos.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3964
- C:\Users\Admin\AppData\Roaming\FullOption_2.1Xenos.exe
  "C:\Users\Admin\AppData\Roaming\FullOption_2.1Xenos.exe"
  2⤵
  - Executes dropped EXE
  PID:1688
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.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:4320
- - 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:4644
- - 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:888
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:5076
- - 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
    PID:3276
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\ProgramData\svchost.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:64

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\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
c67441dfa09f61bca500bb43407c56b8

SHA1
5a56cf7cbeb48c109e2128c31b681fac3959157b

SHA256
63082da456c124d0bc516d2161d1613db5f3008d903e4066d2c7b4e90b435f33

SHA512
325de8b718b3a01df05e20e028c5882240e5fd2e96c771361b776312923ff178f27494a1f5249bf6d7365a99155eb8735a51366e85597008e6a10462e63ee0e8

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

Filesize
1KB

MD5
42dc6ac86749a4acd9a5bf7ba24ca62f

SHA1
6ca6c8cbcd718bf9f061e7abdf632d967bdb8ff1

SHA256
4654c6d710177b7b329be816c17f95c40933ef7f92436c269474bbc5d7507bee

SHA512
4c6feb42cf5e6b3bd67ebcc6c7e8ae61206be9c1d73340cdec9928cb735d6bf443e9971ae1ee3f82c0e770577de631ab9af4612f9d964b816b4611fd3723474e

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

Filesize
1KB

MD5
ff88051331cc3884ce8ccf831fb8ffb3

SHA1
75ea7e49b2e2b80780363d2ba9a6c11fb669165c

SHA256
b1bcbbf4ba68c6f2d95b0aefed34765a8ce6c6b68fb3ffc98e4ea2d8bbd51319

SHA512
dfb23bdd3c4cf4c5a4363cdcb288810483a571e83912d133d0bfb83b6887ff104af59a89d0387420e1e80864b69c7cc9f527ff9b0e1c4ad8feac62afbad6dc98

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bwhysdhd.bok.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\FullOption_2.1Xenos.exe

Filesize
3.9MB

MD5
2f6e9c0dd1c6859a9d6e7acea1db9ac0

SHA1
b0dcd2be62b6a559e479de7745ab0988b8b30522

SHA256
122e3cb0f2ad233d1a364911d433667e7778f00d9a7d10b954c994f4e8093d1f

SHA512
fe3634f46afd5b45f0ffc721a18b5ef1b1344b548f90b8c54ea6995e3d64b7394b56c681b1a0522b67e862fce9d8333b621612a2f03708e7dbc917a28c58c15d

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

Filesize
73KB

MD5
12b722899c9a6b517d52b8de2c7c3e2e

SHA1
a92dbc8edd02adeeab5fa9c0e2a884a84a315fe5

SHA256
57ec7bca087dd678bef5aeaaa52f4f393d63613976701e6a111015fb7f9f1b6c

SHA512
f7b56b96a2dcda223668d82bc8dd7c5a0e7e5786aacad6a0bec809e8525e383b9a85f9e834cf29636fcdb84cce97cf4ad996f9d2cc827c189a2c06baec661a53

Download Submit
memory/3964-0-0x00007FFB2D783000-0x00007FFB2D785000-memory.dmp

Filesize
8KB

Download
memory/3964-1-0x0000000000610000-0x0000000000A0E000-memory.dmp

Filesize
4.0MB

Download
memory/4320-29-0x00007FFB2D780000-0x00007FFB2E242000-memory.dmp

Filesize
10.8MB

Download
memory/4320-28-0x00000000000A0000-0x00000000000B8000-memory.dmp

Filesize
96KB

Download
memory/4320-80-0x00007FFB2D780000-0x00007FFB2E242000-memory.dmp

Filesize
10.8MB

Download
memory/4644-39-0x000002887CD10000-0x000002887CD32000-memory.dmp

Filesize
136KB

Download