xworm | b8318093edf9177163087e7eff4c7c8b7efa73f069a95c8e468ab30049beb36f

Analysis

max time kernel
149s
max time network
150s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20250218-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250218-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
01/03/2025, 10:59

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General

Target

ExcellentLoader.exe
Size

78KB
MD5

066dd41fdaee5a783bb23b84d5f5559e
SHA1

7b5ef0ad6d6a65184d300f616a1036c1476bc841
SHA256

b8318093edf9177163087e7eff4c7c8b7efa73f069a95c8e468ab30049beb36f
SHA512

956d42e02dcdb7dc68a7c1bf3ee921caf26adf8f52b9795f7b17f6dbbf7d63fcb2919c7d395e99d5e7344eb93e2103b45f672907e9abbeb69d198b8f8b60fa80
SSDEEP

1536:mmpxP0+g9rIcT4HF6vhjfIn8zG+bdbIXXF1HM66gJoOiJEJkZyglk:WI6tS8K+bdUzLyOYEewglk

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

all-advocacy.gl.at.ply.gg:33270

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/1448-1-0x00000000001D0000-0x00000000001EA000-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
4584	powershell.exe
2132	powershell.exe
64	powershell.exe
5056	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-1-5-21-556327730-4249790997-552795783-1000\Control Panel\International\Geo\Nation	ExcellentLoader.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	ExcellentLoader.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	ExcellentLoader.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-1-5-21-556327730-4249790997-552795783-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	ExcellentLoader.exe

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3928	timeout.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4584	powershell.exe
4584	powershell.exe
2132	powershell.exe
2132	powershell.exe
64	powershell.exe
64	powershell.exe
5056	powershell.exe
5056	powershell.exe
1448	ExcellentLoader.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1448	ExcellentLoader.exe
Token: SeDebugPrivilege	4584	powershell.exe
Token: SeIncreaseQuotaPrivilege	4584	powershell.exe
Token: SeSecurityPrivilege	4584	powershell.exe
Token: SeTakeOwnershipPrivilege	4584	powershell.exe
Token: SeLoadDriverPrivilege	4584	powershell.exe
Token: SeSystemProfilePrivilege	4584	powershell.exe
Token: SeSystemtimePrivilege	4584	powershell.exe
Token: SeProfSingleProcessPrivilege	4584	powershell.exe
Token: SeIncBasePriorityPrivilege	4584	powershell.exe
Token: SeCreatePagefilePrivilege	4584	powershell.exe
Token: SeBackupPrivilege	4584	powershell.exe
Token: SeRestorePrivilege	4584	powershell.exe
Token: SeShutdownPrivilege	4584	powershell.exe
Token: SeDebugPrivilege	4584	powershell.exe
Token: SeSystemEnvironmentPrivilege	4584	powershell.exe
Token: SeRemoteShutdownPrivilege	4584	powershell.exe
Token: SeUndockPrivilege	4584	powershell.exe
Token: SeManageVolumePrivilege	4584	powershell.exe
Token: 33	4584	powershell.exe
Token: 34	4584	powershell.exe
Token: 35	4584	powershell.exe
Token: 36	4584	powershell.exe
Token: SeDebugPrivilege	2132	powershell.exe
Token: SeIncreaseQuotaPrivilege	2132	powershell.exe
Token: SeSecurityPrivilege	2132	powershell.exe
Token: SeTakeOwnershipPrivilege	2132	powershell.exe
Token: SeLoadDriverPrivilege	2132	powershell.exe
Token: SeSystemProfilePrivilege	2132	powershell.exe
Token: SeSystemtimePrivilege	2132	powershell.exe
Token: SeProfSingleProcessPrivilege	2132	powershell.exe
Token: SeIncBasePriorityPrivilege	2132	powershell.exe
Token: SeCreatePagefilePrivilege	2132	powershell.exe
Token: SeBackupPrivilege	2132	powershell.exe
Token: SeRestorePrivilege	2132	powershell.exe
Token: SeShutdownPrivilege	2132	powershell.exe
Token: SeDebugPrivilege	2132	powershell.exe
Token: SeSystemEnvironmentPrivilege	2132	powershell.exe
Token: SeRemoteShutdownPrivilege	2132	powershell.exe
Token: SeUndockPrivilege	2132	powershell.exe
Token: SeManageVolumePrivilege	2132	powershell.exe
Token: 33	2132	powershell.exe
Token: 34	2132	powershell.exe
Token: 35	2132	powershell.exe
Token: 36	2132	powershell.exe
Token: SeDebugPrivilege	64	powershell.exe
Token: SeIncreaseQuotaPrivilege	64	powershell.exe
Token: SeSecurityPrivilege	64	powershell.exe
Token: SeTakeOwnershipPrivilege	64	powershell.exe
Token: SeLoadDriverPrivilege	64	powershell.exe
Token: SeSystemProfilePrivilege	64	powershell.exe
Token: SeSystemtimePrivilege	64	powershell.exe
Token: SeProfSingleProcessPrivilege	64	powershell.exe
Token: SeIncBasePriorityPrivilege	64	powershell.exe
Token: SeCreatePagefilePrivilege	64	powershell.exe
Token: SeBackupPrivilege	64	powershell.exe
Token: SeRestorePrivilege	64	powershell.exe
Token: SeShutdownPrivilege	64	powershell.exe
Token: SeDebugPrivilege	64	powershell.exe
Token: SeSystemEnvironmentPrivilege	64	powershell.exe
Token: SeRemoteShutdownPrivilege	64	powershell.exe
Token: SeUndockPrivilege	64	powershell.exe
Token: SeManageVolumePrivilege	64	powershell.exe
Token: 33	64	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1448	ExcellentLoader.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 4584	1448	ExcellentLoader.exe	87
PID 1448 wrote to memory of 4584	1448	ExcellentLoader.exe	87
PID 1448 wrote to memory of 2132	1448	ExcellentLoader.exe	91
PID 1448 wrote to memory of 2132	1448	ExcellentLoader.exe	91
PID 1448 wrote to memory of 64	1448	ExcellentLoader.exe	93
PID 1448 wrote to memory of 64	1448	ExcellentLoader.exe	93
PID 1448 wrote to memory of 5056	1448	ExcellentLoader.exe	95
PID 1448 wrote to memory of 5056	1448	ExcellentLoader.exe	95
PID 1448 wrote to memory of 2008	1448	ExcellentLoader.exe	99
PID 1448 wrote to memory of 2008	1448	ExcellentLoader.exe	99
PID 2008 wrote to memory of 3928	2008	cmd.exe	101
PID 2008 wrote to memory of 3928	2008	cmd.exe	101

C:\Users\Admin\AppData\Local\Temp\ExcellentLoader.exe
"C:\Users\Admin\AppData\Local\Temp\ExcellentLoader.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:1448
- 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\ExcellentLoader.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4584
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'ExcellentLoader.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2132
- 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'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:64
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:5056
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9BDD.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2008
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:3928

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

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
ccc0973d72e4a8e00f5ec549e70f0443

SHA1
fcb3f32840171db35cf96c6577fe538fab0d6b40

SHA256
e992b1978b60dff673330ac18143988bf43263afd24fb1b38af7ca0534db2b61

SHA512
50faf2f630acaab3b57da80ece9d70bc6f0595d0a7856b81a5581fa6f5443d0cac52cbbe608d0d7db896e04b54c7b13c32a443f42eb45fcf0066d2efc82ac248

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

Filesize
1KB

MD5
ddf0a97c28dfdc0df02515d79959c83a

SHA1
22bce69797ac7e5e88eadbc31a4c2b2dccf3ac4a

SHA256
f218bfbaa721cabf522324c0dcde03a096f5be1d528bb6136ecdb4af2e7c5fb6

SHA512
a8a7a6eefb6a275937721bb5ae31b25a1821661831c921f1483918889b9960343a8bb69f6b7c20dae2de1b30b6fdc26d7f61dacb02bd3de8aacbaaa07c1f45a0

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_debv2v5i.r1c.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9BDD.tmp.bat

Filesize
167B

MD5
4e9d9ba4d46d48461b25cf211146a746

SHA1
12bd770de010f6e20216533cdd62c20a6e003267

SHA256
d893b2bd63651765a6330e8d92bb5c4725c8eb4857bb50835e144ee827a077b8

SHA512
0350149cc1953eb51ebcdc4f543b5694a228f308c96696fcf14e0ae209da93145e7445b178dca5f88f61dfb5abd1343dfc9301ce79d6f98da1a01d3776932564

Download Submit
memory/1448-1-0x00000000001D0000-0x00000000001EA000-memory.dmp

Filesize
104KB

Download
memory/1448-68-0x00007FFF58D60000-0x00007FFF59822000-memory.dmp

Filesize
10.8MB

Download
memory/1448-0-0x00007FFF58D63000-0x00007FFF58D65000-memory.dmp

Filesize
8KB

Download
memory/1448-60-0x0000000002290000-0x000000000229C000-memory.dmp

Filesize
48KB

Download
memory/1448-59-0x00007FFF58D60000-0x00007FFF59822000-memory.dmp

Filesize
10.8MB

Download
memory/1448-58-0x00007FFF58D60000-0x00007FFF59822000-memory.dmp

Filesize
10.8MB

Download
memory/4584-12-0x00007FFF58D60000-0x00007FFF59822000-memory.dmp

Filesize
10.8MB

Download
memory/4584-19-0x00007FFF58D60000-0x00007FFF59822000-memory.dmp

Filesize
10.8MB

Download
memory/4584-16-0x00007FFF58D60000-0x00007FFF59822000-memory.dmp

Filesize
10.8MB

Download
memory/4584-15-0x00007FFF58D60000-0x00007FFF59822000-memory.dmp

Filesize
10.8MB

Download
memory/4584-14-0x00007FFF58D60000-0x00007FFF59822000-memory.dmp

Filesize
10.8MB

Download
memory/4584-13-0x00007FFF58D60000-0x00007FFF59822000-memory.dmp

Filesize
10.8MB

Download
memory/4584-2-0x000002546F100000-0x000002546F122000-memory.dmp

Filesize
136KB

Download