xworm | 150ac1fb1dfc122655f683b3ec40e672d815c03699fb68a69917eb7b8ae8373d

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
07/03/2025, 23:45

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General

Target

antinashook/WinRes32.exe
Size

952KB
MD5

0c7e5b83652dabf3503bf0001b329afa
SHA1

b27452eb81f2e1b2958e3a9980fe35807f01f248
SHA256

d2d26cfeffede48bad16333b3fb1098f2c713598c2eaf37f9894069fecdce2fe
SHA512

5fe40e55382ff33642d55e738106d4e8fd78d6ee9129cb693d9c6c3025cdc30d855dba09bf4f3f932ba0e483d0e18a9eb079f357ce5c60399b54c19382007854
SSDEEP

24576:g1Way//sMrF9Q0LDnjH+eQIn1J/bYbV2u6MxgndIXhagbA0Q:uyHsMrF9Q0vCeQIvTYbwu6HndIXYgbT

Score

10^/10

xworm discovery execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Attributes

Install_directory
%Public%
install_file
svchost.exe
pastebin_url
https://pastebin.com/raw/1vj9gviK

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023d3c-17.dat	family_xworm
behavioral2/memory/4856-26-0x0000000000EC0000-0x0000000000EDA000-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
2776	powershell.exe
1876	powershell.exe
4968	powershell.exe
4072	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-1-5-21-925314154-1797147466-1467878628-1000\Control Panel\International\Geo\Nation	WinRes32.exe
Key value queried	\REGISTRY\USER\S-1-5-21-925314154-1797147466-1467878628-1000\Control Panel\International\Geo\Nation	Riot.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 4 IoCs

pid	Process
1892	WindowsServiceHost.exe
4856	Riot.exe
4564	svchost.exe
4996	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-1-5-21-925314154-1797147466-1467878628-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Public\\svchost.exe"	Riot.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
23	pastebin.com
22	pastebin.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WinRes32.exe

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
4604	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
4968	powershell.exe
4968	powershell.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
4072	powershell.exe
4072	powershell.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
2776	powershell.exe
2776	powershell.exe
1876	powershell.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1876	powershell.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
4856	Riot.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe
1892	WindowsServiceHost.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	4856	Riot.exe
Token: SeDebugPrivilege	4968	powershell.exe
Token: SeDebugPrivilege	4072	powershell.exe
Token: SeDebugPrivilege	2776	powershell.exe
Token: SeDebugPrivilege	1876	powershell.exe
Token: SeDebugPrivilege	4856	Riot.exe
Token: SeDebugPrivilege	4564	svchost.exe
Token: SeDebugPrivilege	4996	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4856	Riot.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 976 wrote to memory of 1892	976	WinRes32.exe	85
PID 976 wrote to memory of 1892	976	WinRes32.exe	85
PID 976 wrote to memory of 4856	976	WinRes32.exe	87
PID 976 wrote to memory of 4856	976	WinRes32.exe	87
PID 4856 wrote to memory of 4968	4856	Riot.exe	94
PID 4856 wrote to memory of 4968	4856	Riot.exe	94
PID 4856 wrote to memory of 4072	4856	Riot.exe	96
PID 4856 wrote to memory of 4072	4856	Riot.exe	96
PID 4856 wrote to memory of 2776	4856	Riot.exe	98
PID 4856 wrote to memory of 2776	4856	Riot.exe	98
PID 4856 wrote to memory of 1876	4856	Riot.exe	100
PID 4856 wrote to memory of 1876	4856	Riot.exe	100
PID 4856 wrote to memory of 4604	4856	Riot.exe	103
PID 4856 wrote to memory of 4604	4856	Riot.exe	103

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\antinashook\WinRes32.exe
"C:\Users\Admin\AppData\Local\Temp\antinashook\WinRes32.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:976
- C:\Users\Admin\AppData\Local\Temp\WindowsServiceHost.exe
  "C:\Users\Admin\AppData\Local\Temp\WindowsServiceHost.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  PID:1892
- C:\Users\Admin\AppData\Local\Temp\Riot.exe
  "C:\Users\Admin\AppData\Local\Temp\Riot.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:4856
- - 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\Riot.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4968
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Riot.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4072
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Public\svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2776
- - 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:1876
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Public\svchost.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4604

C:\Users\Public\svchost.exe
C:\Users\Public\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4564

C:\Users\Public\svchost.exe
C:\Users\Public\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4996

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

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

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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

Filesize
944B

MD5
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
944B

MD5
ef72c47dbfaae0b9b0d09f22ad4afe20

SHA1
5357f66ba69b89440b99d4273b74221670129338

SHA256
692ec20c7039170fb199510f0436181fd155e6b4516d4d1c9e1675adf99aaa7f

SHA512
7514b6bc8dc39fa618223300be27cd535dc35b18c66b4a089e2302e72b3e0cac06d88a989fa1296feb386b3cbe2084019df6430c7f895071b76e04ce559a30b4

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

Filesize
944B

MD5
8ab6456a8ec71255cb9ead0bb5d27767

SHA1
bc9ff860086488478e7716f7ac4421e8f69795fb

SHA256
bcb14f15fbe23bf51a657c69b24f09cd51e33a2530f89ad17c44f660769611e2

SHA512
87c5368dbd7c85f341edf8992d8b1c87984f9a3549a4802c6054da4e12a8674f10f56d03afc1a72b2cfc40895150d3b0f4d9d4c355c79cdf364ace35eb8ebf15

Download Submit
C:\Users\Admin\AppData\Local\Temp\Riot.exe

Filesize
79KB

MD5
71950ec079e71454b5d271184dd58d5d

SHA1
8d20ba26cece10021d43ebff34692e4991a00c8c

SHA256
26837090198630078059fc3a5dbafa01ba5ac223c8d380845a8a3d6368d49ccd

SHA512
9d4970ced13787823319de1903aa38f615c7390600f77d6fb013df2827d7ddff57e69750ccaa752799bba821bf7e58fd358dccf176b52d25295b68d3c044333d

Download Submit
C:\Users\Admin\AppData\Local\Temp\WindowsServiceHost.exe

Filesize
23KB

MD5
3b5ba1d090951d3d769836223db57393

SHA1
9b31771eba4dd8c7bbccdc2a50bb6dad87e42fc4

SHA256
898ac3faf4ecaad9b2fee90a2e5545b647e260c7a3f55c40babfa3c002170a19

SHA512
959552901b232666b1c4ff75729b18952c39da5672346779d45025daae108eba7a682fc9f41b0edb94c924f0a2c349db57e3ca3dbe5adb0b44c9d1c7d0888d5d

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_spus1l2o.dbs.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4856-26-0x0000000000EC0000-0x0000000000EDA000-memory.dmp

Filesize
104KB

Download
memory/4856-24-0x00007FFC02AC3000-0x00007FFC02AC5000-memory.dmp

Filesize
8KB

Download
memory/4856-77-0x00007FFC02AC0000-0x00007FFC03581000-memory.dmp

Filesize
10.8MB

Download
memory/4856-78-0x00007FFC02AC0000-0x00007FFC03581000-memory.dmp

Filesize
10.8MB

Download
memory/4968-27-0x00000234B5110000-0x00000234B5132000-memory.dmp

Filesize
136KB

Download