xworm | a827b4c334d1614b5bf2f6cd6c64a380825073bf2a3adbd93004e5f5063c92f4

Analysis

max time kernel
149s
max time network
151s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20250217-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250217-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
03/03/2025, 12:21

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General

Target

injector-helper.exe
Size

166KB
MD5

ab379c38321e11520f57c362c0dfbc73
SHA1

db66343fd289e8f6466abf35e3c97cb4604e580f
SHA256

a827b4c334d1614b5bf2f6cd6c64a380825073bf2a3adbd93004e5f5063c92f4
SHA512

deb2257401ba7d4b4d81280528752807f4c566543a6bb32dc277e2b8812fb37503638135365ec80c56f9d81fa42ef996dc9335e4a7be1dcaa2c722abb8416c08
SSDEEP

3072:ltmh0cYth8+bk9MuO5wE5SKBz65/M6If+3Js+3JFkKeTnQ:ltmWcUbbfi8SKxBt25

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Attributes

Install_directory
%Temp%
install_file
svchost.exe
pastebin_url
https://pastebin.com/raw/kADeGNZE

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/memory/3796-1-0x00000000008B0000-0x00000000008E0000-memory.dmp	family_xworm
behavioral1/files/0x000d000000027d36-61.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 4 IoCs

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

execution

PowerShell

T1059.001

pid	Process
860	powershell.exe
4016	powershell.exe
412	powershell.exe
2516	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-1-5-21-3524754987-2550789650-2995585052-1000\Control Panel\International\Geo\Nation	injector-helper.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
1860	svchost.exe
1220	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-1-5-21-3524754987-2550789650-2995585052-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe"	injector-helper.exe

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

Web Service

T1102

flow	ioc
15	pastebin.com
16	pastebin.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
4312	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
860	powershell.exe
860	powershell.exe
4016	powershell.exe
4016	powershell.exe
412	powershell.exe
412	powershell.exe
2516	powershell.exe
2516	powershell.exe
3796	injector-helper.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3796	injector-helper.exe
Token: SeDebugPrivilege	860	powershell.exe
Token: SeIncreaseQuotaPrivilege	860	powershell.exe
Token: SeSecurityPrivilege	860	powershell.exe
Token: SeTakeOwnershipPrivilege	860	powershell.exe
Token: SeLoadDriverPrivilege	860	powershell.exe
Token: SeSystemProfilePrivilege	860	powershell.exe
Token: SeSystemtimePrivilege	860	powershell.exe
Token: SeProfSingleProcessPrivilege	860	powershell.exe
Token: SeIncBasePriorityPrivilege	860	powershell.exe
Token: SeCreatePagefilePrivilege	860	powershell.exe
Token: SeBackupPrivilege	860	powershell.exe
Token: SeRestorePrivilege	860	powershell.exe
Token: SeShutdownPrivilege	860	powershell.exe
Token: SeDebugPrivilege	860	powershell.exe
Token: SeSystemEnvironmentPrivilege	860	powershell.exe
Token: SeRemoteShutdownPrivilege	860	powershell.exe
Token: SeUndockPrivilege	860	powershell.exe
Token: SeManageVolumePrivilege	860	powershell.exe
Token: 33	860	powershell.exe
Token: 34	860	powershell.exe
Token: 35	860	powershell.exe
Token: 36	860	powershell.exe
Token: SeDebugPrivilege	4016	powershell.exe
Token: SeIncreaseQuotaPrivilege	4016	powershell.exe
Token: SeSecurityPrivilege	4016	powershell.exe
Token: SeTakeOwnershipPrivilege	4016	powershell.exe
Token: SeLoadDriverPrivilege	4016	powershell.exe
Token: SeSystemProfilePrivilege	4016	powershell.exe
Token: SeSystemtimePrivilege	4016	powershell.exe
Token: SeProfSingleProcessPrivilege	4016	powershell.exe
Token: SeIncBasePriorityPrivilege	4016	powershell.exe
Token: SeCreatePagefilePrivilege	4016	powershell.exe
Token: SeBackupPrivilege	4016	powershell.exe
Token: SeRestorePrivilege	4016	powershell.exe
Token: SeShutdownPrivilege	4016	powershell.exe
Token: SeDebugPrivilege	4016	powershell.exe
Token: SeSystemEnvironmentPrivilege	4016	powershell.exe
Token: SeRemoteShutdownPrivilege	4016	powershell.exe
Token: SeUndockPrivilege	4016	powershell.exe
Token: SeManageVolumePrivilege	4016	powershell.exe
Token: 33	4016	powershell.exe
Token: 34	4016	powershell.exe
Token: 35	4016	powershell.exe
Token: 36	4016	powershell.exe
Token: SeDebugPrivilege	412	powershell.exe
Token: SeIncreaseQuotaPrivilege	412	powershell.exe
Token: SeSecurityPrivilege	412	powershell.exe
Token: SeTakeOwnershipPrivilege	412	powershell.exe
Token: SeLoadDriverPrivilege	412	powershell.exe
Token: SeSystemProfilePrivilege	412	powershell.exe
Token: SeSystemtimePrivilege	412	powershell.exe
Token: SeProfSingleProcessPrivilege	412	powershell.exe
Token: SeIncBasePriorityPrivilege	412	powershell.exe
Token: SeCreatePagefilePrivilege	412	powershell.exe
Token: SeBackupPrivilege	412	powershell.exe
Token: SeRestorePrivilege	412	powershell.exe
Token: SeShutdownPrivilege	412	powershell.exe
Token: SeDebugPrivilege	412	powershell.exe
Token: SeSystemEnvironmentPrivilege	412	powershell.exe
Token: SeRemoteShutdownPrivilege	412	powershell.exe
Token: SeUndockPrivilege	412	powershell.exe
Token: SeManageVolumePrivilege	412	powershell.exe
Token: 33	412	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3796	injector-helper.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3796 wrote to memory of 860	3796	injector-helper.exe	83
PID 3796 wrote to memory of 860	3796	injector-helper.exe	83
PID 3796 wrote to memory of 4016	3796	injector-helper.exe	88
PID 3796 wrote to memory of 4016	3796	injector-helper.exe	88
PID 3796 wrote to memory of 412	3796	injector-helper.exe	91
PID 3796 wrote to memory of 412	3796	injector-helper.exe	91
PID 3796 wrote to memory of 2516	3796	injector-helper.exe	93
PID 3796 wrote to memory of 2516	3796	injector-helper.exe	93
PID 3796 wrote to memory of 4312	3796	injector-helper.exe	95
PID 3796 wrote to memory of 4312	3796	injector-helper.exe	95

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\injector-helper.exe
"C:\Users\Admin\AppData\Local\Temp\injector-helper.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:3796
- 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\injector-helper.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:860
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'injector-helper.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4016
- 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\svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:412
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:2516
- 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\Local\Temp\svchost.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4312

C:\Users\Admin\AppData\Local\Temp\svchost.exe
"C:\Users\Admin\AppData\Local\Temp\svchost.exe"
1⤵
- Executes dropped EXE
PID:1860

C:\Users\Admin\AppData\Local\Temp\svchost.exe
"C:\Users\Admin\AppData\Local\Temp\svchost.exe"
1⤵
- Executes dropped EXE
PID:1220

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

Web Service

T1102

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\CLR_v4.0\UsageLogs\svchost.exe.log

Filesize
654B

MD5
11c6e74f0561678d2cf7fc075a6cc00c

SHA1
535ee79ba978554abcb98c566235805e7ea18490

SHA256
d39a78fabca39532fcb85ce908781a75132e1bd01cc50a3b290dd87127837d63

SHA512
32c63d67bf512b42e7f57f71287b354200126cb417ef9d869c72e0b9388a7c2f5e3b61f303f1353baa1bf482d0f17e06e23c9f50b2f1babd4d958b6da19c40b0

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

Filesize
1KB

MD5
60b3262c3163ee3d466199160b9ed07d

SHA1
994ece4ea4e61de0be2fdd580f87e3415f9e1ff6

SHA256
e3b30f16d41f94cba2b8a75f35c91ae7418465abfbfe5477ec0551d1952b2fdb

SHA512
081d2015cb94477eb0fbc38f44b6d9b4a3204fb3ad0b7d0e146a88ab4ab9a0d475207f1adae03f4a81ccc5beb7568dc8be1249f69e32fe56efd9ee2f6ee3b1af

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

Filesize
1KB

MD5
5dc0bf06113f867ab9be36428acea530

SHA1
bd73ca9bf3e5edc80370f4bc79eb403772440105

SHA256
d8e861ab4e7c40d5ccae45c056a72219decadc6061a0020cae2dfec8dc55e4ae

SHA512
e92b837a30d55b7d0f38aafc3a9403d77f2672b1de2113ba1926c7e84c89248813b50f942cbb72a166819f773b8ac4ba40d5a3329e1a815a2f833234b5a1d98d

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

Filesize
1KB

MD5
06b5df702e24a3d38e9a4fd3c312aaa8

SHA1
e363d67e8c0908c6f91fdfca7dc707e308f0a8e5

SHA256
696fe646fc535eb8cb9e1956b77272c72b220dc7993c5842fe15f72d4e35689a

SHA512
24be7cee41206f7f85d9160074334cdb776e3b21f1045bc0b920c39259b9c3e6c58d0605af2ef09ca7a073d802a87e583a85a66781760d1477d53d83dfe4ce43

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_11mu2di0.wpt.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
166KB

MD5
ab379c38321e11520f57c362c0dfbc73

SHA1
db66343fd289e8f6466abf35e3c97cb4604e580f

SHA256
a827b4c334d1614b5bf2f6cd6c64a380825073bf2a3adbd93004e5f5063c92f4

SHA512
deb2257401ba7d4b4d81280528752807f4c566543a6bb32dc277e2b8812fb37503638135365ec80c56f9d81fa42ef996dc9335e4a7be1dcaa2c722abb8416c08

Download Submit
memory/860-12-0x00007FF95E180000-0x00007FF95EC42000-memory.dmp

Filesize
10.8MB

Download
memory/860-16-0x00007FF95E180000-0x00007FF95EC42000-memory.dmp

Filesize
10.8MB

Download
memory/860-19-0x00007FF95E180000-0x00007FF95EC42000-memory.dmp

Filesize
10.8MB

Download
memory/860-15-0x00007FF95E180000-0x00007FF95EC42000-memory.dmp

Filesize
10.8MB

Download
memory/860-13-0x00007FF95E180000-0x00007FF95EC42000-memory.dmp

Filesize
10.8MB

Download
memory/860-14-0x00007FF95E180000-0x00007FF95EC42000-memory.dmp

Filesize
10.8MB

Download
memory/860-11-0x0000022E9F970000-0x0000022E9F992000-memory.dmp

Filesize
136KB

Download
memory/3796-0-0x00007FF95E183000-0x00007FF95E185000-memory.dmp

Filesize
8KB

Download
memory/3796-54-0x00007FF95E183000-0x00007FF95E185000-memory.dmp

Filesize
8KB

Download
memory/3796-59-0x00007FF95E180000-0x00007FF95EC42000-memory.dmp

Filesize
10.8MB

Download
memory/3796-60-0x00007FF95E180000-0x00007FF95EC42000-memory.dmp

Filesize
10.8MB

Download
memory/3796-1-0x00000000008B0000-0x00000000008E0000-memory.dmp

Filesize
192KB

Download