xworm | 29774f3e9e2de12c7441f765f340cd661c38de279922961fc69488e2feffe67c

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
28/02/2025, 15:42

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General

Target

ExcellentDll.exe
Size

345KB
MD5

69f478046e3ef37a710a452f796c9ef9
SHA1

f577229b18661c30938b8dd158019370be32c1d1
SHA256

29774f3e9e2de12c7441f765f340cd661c38de279922961fc69488e2feffe67c
SHA512

ee8994cd121e7437d9affc77988852a71895d92aea268517adeb8bf62fc7b532ea507a03ddc05f9a449e5729201d908690f3a9ac5350832d5c7c01328257eea8
SSDEEP

6144:Q0mluu8NPetOlmfMYdTQJzLtxfg6vgR6TNX5vcQY2MRcViNpqbCtULop+mG:Cou80CKQBxfPvgR6TVcLsiNpqmwok5

Score

10^/10

xworm discovery execution persistence rat trojan

Malware Config

Extracted

Family

xworm

cameras-happen.gl.at.ply.gg:23386

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral3/files/0x000e000000027d59-4.dat	family_xworm
behavioral3/memory/4604-29-0x0000000000310000-0x000000000032A000-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
3424	powershell.exe
4872	powershell.exe
3800	powershell.exe
2212	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-1-5-21-3996797005-1442104920-3698332314-1000\Control Panel\International\Geo\Nation	ExcellentDll.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3996797005-1442104920-3698332314-1000\Control Panel\International\Geo\Nation	ExcellentFree.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
4604	ExcellentFree.exe
1700	ExLoader.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-1-5-21-3996797005-1442104920-3698332314-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	ExcellentFree.exe

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	ExcellentDll.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3424	powershell.exe
3424	powershell.exe
4872	powershell.exe
4872	powershell.exe
3800	powershell.exe
3800	powershell.exe
2212	powershell.exe
2212	powershell.exe
4604	ExcellentFree.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4604	ExcellentFree.exe
Token: SeDebugPrivilege	3424	powershell.exe
Token: SeIncreaseQuotaPrivilege	3424	powershell.exe
Token: SeSecurityPrivilege	3424	powershell.exe
Token: SeTakeOwnershipPrivilege	3424	powershell.exe
Token: SeLoadDriverPrivilege	3424	powershell.exe
Token: SeSystemProfilePrivilege	3424	powershell.exe
Token: SeSystemtimePrivilege	3424	powershell.exe
Token: SeProfSingleProcessPrivilege	3424	powershell.exe
Token: SeIncBasePriorityPrivilege	3424	powershell.exe
Token: SeCreatePagefilePrivilege	3424	powershell.exe
Token: SeBackupPrivilege	3424	powershell.exe
Token: SeRestorePrivilege	3424	powershell.exe
Token: SeShutdownPrivilege	3424	powershell.exe
Token: SeDebugPrivilege	3424	powershell.exe
Token: SeSystemEnvironmentPrivilege	3424	powershell.exe
Token: SeRemoteShutdownPrivilege	3424	powershell.exe
Token: SeUndockPrivilege	3424	powershell.exe
Token: SeManageVolumePrivilege	3424	powershell.exe
Token: 33	3424	powershell.exe
Token: 34	3424	powershell.exe
Token: 35	3424	powershell.exe
Token: 36	3424	powershell.exe
Token: SeDebugPrivilege	4872	powershell.exe
Token: SeIncreaseQuotaPrivilege	4872	powershell.exe
Token: SeSecurityPrivilege	4872	powershell.exe
Token: SeTakeOwnershipPrivilege	4872	powershell.exe
Token: SeLoadDriverPrivilege	4872	powershell.exe
Token: SeSystemProfilePrivilege	4872	powershell.exe
Token: SeSystemtimePrivilege	4872	powershell.exe
Token: SeProfSingleProcessPrivilege	4872	powershell.exe
Token: SeIncBasePriorityPrivilege	4872	powershell.exe
Token: SeCreatePagefilePrivilege	4872	powershell.exe
Token: SeBackupPrivilege	4872	powershell.exe
Token: SeRestorePrivilege	4872	powershell.exe
Token: SeShutdownPrivilege	4872	powershell.exe
Token: SeDebugPrivilege	4872	powershell.exe
Token: SeSystemEnvironmentPrivilege	4872	powershell.exe
Token: SeRemoteShutdownPrivilege	4872	powershell.exe
Token: SeUndockPrivilege	4872	powershell.exe
Token: SeManageVolumePrivilege	4872	powershell.exe
Token: 33	4872	powershell.exe
Token: 34	4872	powershell.exe
Token: 35	4872	powershell.exe
Token: 36	4872	powershell.exe
Token: SeDebugPrivilege	3800	powershell.exe
Token: SeIncreaseQuotaPrivilege	3800	powershell.exe
Token: SeSecurityPrivilege	3800	powershell.exe
Token: SeTakeOwnershipPrivilege	3800	powershell.exe
Token: SeLoadDriverPrivilege	3800	powershell.exe
Token: SeSystemProfilePrivilege	3800	powershell.exe
Token: SeSystemtimePrivilege	3800	powershell.exe
Token: SeProfSingleProcessPrivilege	3800	powershell.exe
Token: SeIncBasePriorityPrivilege	3800	powershell.exe
Token: SeCreatePagefilePrivilege	3800	powershell.exe
Token: SeBackupPrivilege	3800	powershell.exe
Token: SeRestorePrivilege	3800	powershell.exe
Token: SeShutdownPrivilege	3800	powershell.exe
Token: SeDebugPrivilege	3800	powershell.exe
Token: SeSystemEnvironmentPrivilege	3800	powershell.exe
Token: SeRemoteShutdownPrivilege	3800	powershell.exe
Token: SeUndockPrivilege	3800	powershell.exe
Token: SeManageVolumePrivilege	3800	powershell.exe
Token: 33	3800	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4604	ExcellentFree.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1552 wrote to memory of 4604	1552	ExcellentDll.exe	84
PID 1552 wrote to memory of 4604	1552	ExcellentDll.exe	84
PID 1552 wrote to memory of 1700	1552	ExcellentDll.exe	85
PID 1552 wrote to memory of 1700	1552	ExcellentDll.exe	85
PID 4604 wrote to memory of 3424	4604	ExcellentFree.exe	92
PID 4604 wrote to memory of 3424	4604	ExcellentFree.exe	92
PID 4604 wrote to memory of 4872	4604	ExcellentFree.exe	95
PID 4604 wrote to memory of 4872	4604	ExcellentFree.exe	95
PID 4604 wrote to memory of 3800	4604	ExcellentFree.exe	97
PID 4604 wrote to memory of 3800	4604	ExcellentFree.exe	97
PID 4604 wrote to memory of 2212	4604	ExcellentFree.exe	100
PID 4604 wrote to memory of 2212	4604	ExcellentFree.exe	100

C:\Users\Admin\AppData\Local\Temp\ExcellentDll.exe
"C:\Users\Admin\AppData\Local\Temp\ExcellentDll.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1552
- C:\Users\Admin\AppData\Local\Temp\ExcellentFree.exe
  "C:\Users\Admin\AppData\Local\Temp\ExcellentFree.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:4604
- - 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\ExcellentFree.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3424
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'ExcellentFree.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4872
- - 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\XClient.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3800
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    PID:2212
- C:\Users\Admin\AppData\Local\Temp\ExLoader.exe
  "C:\Users\Admin\AppData\Local\Temp\ExLoader.exe"
  2⤵
  - Executes dropped EXE
  PID:1700

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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

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
a3c1b2c7463ee67e173b0bacfb3e0203

SHA1
eaaf0eb6e39337513be7d771fe1ed7249566dd00

SHA256
7cf0c5a160dc8f1cf2277a6866d5006e5d65f092b227e2977ea48b05950fa7da

SHA512
852eb10a004d84859d517f0af76cc4c6148a041903ed545f37e12150119364f80edb95e1be40f448d3b4273cb94716f38007419c014a835e2976901fac952123

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

Filesize
1KB

MD5
ee837f9246bf7d67b3132d8c32031517

SHA1
044171961c32e56e9e41da106ca654d1d7a5198f

SHA256
bf2368988696a019042e21b490d30f66297c8517a9fd3ca798fac7183d2b2d28

SHA512
cd8636c9fcdf8eb25cde91309edf5a01cba0b155d81f4a176c0bb7e0b829cc0b7adea724d6d27778beaf1247bafdddc9c47d05388c23da26a21e8c436d47d4a5

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

Filesize
374KB

MD5
4183f8ec375a90742d38b1d69d136f92

SHA1
a630ecdb41aaa0982fad2775dd6114d20a5e0081

SHA256
ec8c87c21a99ec03772008304fe1a8a3261aa0beecafa7066c456069b66a33c6

SHA512
5c23e9cfdadb4de5d57130d6fead4b072ee3034554d8ba17b0d8935eac75f8986f9648ca225ea3c10757fe888cc049634872ee0278953906a735f5242d8ac060

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

Filesize
76KB

MD5
8cc568f48114422b0ca792dc8ce6009a

SHA1
bbe67dabd894ac2e45dc8027c6e3000f73ec97d7

SHA256
7a3d86182ae45a6be17ef36d1f12463b398c165a7e6fe4aa80e56ceab7f036eb

SHA512
45fe66a17c0473c0a4967d501d6f28f7a41fdce03ec31c46fb11ffd5fd848493578effbc36b4247ae49b987c41c3a559a9185dfdd0fd42468f30c310bea7bcc4

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2mhckkym.up2.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3424-31-0x000001B63A6E0000-0x000001B63A702000-memory.dmp

Filesize
136KB

Download
memory/4604-21-0x00007FFAC54E3000-0x00007FFAC54E5000-memory.dmp

Filesize
8KB

Download
memory/4604-29-0x0000000000310000-0x000000000032A000-memory.dmp

Filesize
104KB

Download
memory/4604-81-0x00007FFAC54E0000-0x00007FFAC5FA2000-memory.dmp

Filesize
10.8MB

Download
memory/4604-82-0x00007FFAC54E0000-0x00007FFAC5FA2000-memory.dmp

Filesize
10.8MB

Download