xworm | baa8ace81d5e51f20fea99bf6b8de26c594a2011b670883304e085e5a9847eb2

Analysis

max time kernel
47s
max time network
53s
platform
windows10-1703_x64
resource
win10-20240611-en
resource tags

arch:x64arch:x86image:win10-20240611-enlocale:en-usos:windows10-1703-x64system
submitted
01-08-2024 20:55

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Reason

Machine shutdown

Report Analysis Logs

General

Target

XClient.exe
Size

80KB
MD5

bfa950b37b6a4f8de71af861e677a8b4
SHA1

2ee40bfbf2964d92c82256e5924169295dfdd225
SHA256

07f94f8f6061ba95899914496edc5854aa810de56797d9004875276d60e21ade
SHA512

235b514fac01b24edaef3aeb4209676789b6ba9264a8798cb7ae48c26d2455cdd8f254e92bbba688535acb69fd77b3c0a0a549cf97ece84c235cc74f72234e1a
SSDEEP

1536:EI5NuEGJkEtydWqZQSp1eS+b59gxzhfxdl/5m6qeo//3Oy/4IK4Dax5:Eg1GhtktQGAS+b59cJ4eA/OlINDab

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

full-self.gl.at.ply.gg:45212

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/1420-1-0x0000000000750000-0x000000000076A000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat 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
3236	powershell.exe
1712	powershell.exe
4376	powershell.exe
2300	powershell.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-1-5-21-1453213197-474736321-1741884505-1000\Software\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	XClient.exe

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

System Information Discovery
T1082

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "1"	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
3236	powershell.exe
3236	powershell.exe
3236	powershell.exe
1712	powershell.exe
1712	powershell.exe
1712	powershell.exe
4376	powershell.exe
4376	powershell.exe
4376	powershell.exe
2300	powershell.exe
2300	powershell.exe
2300	powershell.exe
1420	XClient.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1420	XClient.exe
Token: SeDebugPrivilege	3236	powershell.exe
Token: SeIncreaseQuotaPrivilege	3236	powershell.exe
Token: SeSecurityPrivilege	3236	powershell.exe
Token: SeTakeOwnershipPrivilege	3236	powershell.exe
Token: SeLoadDriverPrivilege	3236	powershell.exe
Token: SeSystemProfilePrivilege	3236	powershell.exe
Token: SeSystemtimePrivilege	3236	powershell.exe
Token: SeProfSingleProcessPrivilege	3236	powershell.exe
Token: SeIncBasePriorityPrivilege	3236	powershell.exe
Token: SeCreatePagefilePrivilege	3236	powershell.exe
Token: SeBackupPrivilege	3236	powershell.exe
Token: SeRestorePrivilege	3236	powershell.exe
Token: SeShutdownPrivilege	3236	powershell.exe
Token: SeDebugPrivilege	3236	powershell.exe
Token: SeSystemEnvironmentPrivilege	3236	powershell.exe
Token: SeRemoteShutdownPrivilege	3236	powershell.exe
Token: SeUndockPrivilege	3236	powershell.exe
Token: SeManageVolumePrivilege	3236	powershell.exe
Token: 33	3236	powershell.exe
Token: 34	3236	powershell.exe
Token: 35	3236	powershell.exe
Token: 36	3236	powershell.exe
Token: SeDebugPrivilege	1712	powershell.exe
Token: SeIncreaseQuotaPrivilege	1712	powershell.exe
Token: SeSecurityPrivilege	1712	powershell.exe
Token: SeTakeOwnershipPrivilege	1712	powershell.exe
Token: SeLoadDriverPrivilege	1712	powershell.exe
Token: SeSystemProfilePrivilege	1712	powershell.exe
Token: SeSystemtimePrivilege	1712	powershell.exe
Token: SeProfSingleProcessPrivilege	1712	powershell.exe
Token: SeIncBasePriorityPrivilege	1712	powershell.exe
Token: SeCreatePagefilePrivilege	1712	powershell.exe
Token: SeBackupPrivilege	1712	powershell.exe
Token: SeRestorePrivilege	1712	powershell.exe
Token: SeShutdownPrivilege	1712	powershell.exe
Token: SeDebugPrivilege	1712	powershell.exe
Token: SeSystemEnvironmentPrivilege	1712	powershell.exe
Token: SeRemoteShutdownPrivilege	1712	powershell.exe
Token: SeUndockPrivilege	1712	powershell.exe
Token: SeManageVolumePrivilege	1712	powershell.exe
Token: 33	1712	powershell.exe
Token: 34	1712	powershell.exe
Token: 35	1712	powershell.exe
Token: 36	1712	powershell.exe
Token: SeDebugPrivilege	4376	powershell.exe
Token: SeIncreaseQuotaPrivilege	4376	powershell.exe
Token: SeSecurityPrivilege	4376	powershell.exe
Token: SeTakeOwnershipPrivilege	4376	powershell.exe
Token: SeLoadDriverPrivilege	4376	powershell.exe
Token: SeSystemProfilePrivilege	4376	powershell.exe
Token: SeSystemtimePrivilege	4376	powershell.exe
Token: SeProfSingleProcessPrivilege	4376	powershell.exe
Token: SeIncBasePriorityPrivilege	4376	powershell.exe
Token: SeCreatePagefilePrivilege	4376	powershell.exe
Token: SeBackupPrivilege	4376	powershell.exe
Token: SeRestorePrivilege	4376	powershell.exe
Token: SeShutdownPrivilege	4376	powershell.exe
Token: SeDebugPrivilege	4376	powershell.exe
Token: SeSystemEnvironmentPrivilege	4376	powershell.exe
Token: SeRemoteShutdownPrivilege	4376	powershell.exe
Token: SeUndockPrivilege	4376	powershell.exe
Token: SeManageVolumePrivilege	4376	powershell.exe
Token: 33	4376	powershell.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1420	XClient.exe
4232	LogonUI.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1420 wrote to memory of 3236	1420	XClient.exe	70
PID 1420 wrote to memory of 3236	1420	XClient.exe	70
PID 1420 wrote to memory of 1712	1420	XClient.exe	73
PID 1420 wrote to memory of 1712	1420	XClient.exe	73
PID 1420 wrote to memory of 4376	1420	XClient.exe	75
PID 1420 wrote to memory of 4376	1420	XClient.exe	75
PID 1420 wrote to memory of 2300	1420	XClient.exe	77
PID 1420 wrote to memory of 2300	1420	XClient.exe	77
PID 1420 wrote to memory of 3280	1420	XClient.exe	80
PID 1420 wrote to memory of 3280	1420	XClient.exe	80

C:\Users\Admin\AppData\Local\Temp\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1420
- 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\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3236
- 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
  - Suspicious use of AdjustPrivilegeToken
  PID:1712
- 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:4376
- 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:2300
- C:\Windows\SYSTEM32\shutdown.exe
  shutdown.exe /f /s /t 0
  2⤵
  PID:3280

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0 /state0:0xa3ae3055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:4232

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

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
8592ba100a78835a6b94d5949e13dfc1

SHA1
63e901200ab9a57c7dd4c078d7f75dcd3b357020

SHA256
fdd7d9def6f9f0c0f2e60dbc8a2d1999071cd7d3095e9e087bb1cda7a614ac3c

SHA512
87f98e6cb61b2a2a7d65710c4d33881d89715eb7a06e00d492259f35c3902498baabffc5886be0ec5a14312ad4c262e3fc40cd3a5cb91701af0fb229726b88c3

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

Filesize
1KB

MD5
350cd8cb44aff026bf58ba9183abe4ad

SHA1
2d566a1e3a0f48c78ec2ac1eb1b3ca415c70b384

SHA256
66a34af15808bbcb1250f38dd3edb968e39c5cd6e5d39179666a7f63000cb990

SHA512
678b3d04f9e95621abdfb4fd48780143f8342dfa10637575f0acd7cb7032c1da110d6435c6d724b0c3e713e3a24b7523e5f6ae1068202b644a40520c99d88ba4

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

Filesize
1KB

MD5
136a958815c1547b90639526b61d7827

SHA1
4afc0f1613fef29a0becc75662fe787985ae6c9a

SHA256
7f5a9e4730a57f4ab04978b01ae8cbb658e2b669edf6f30433b2a0a2f6fcba75

SHA512
27a705005c3cd45ae0bfc0a44711de05d54a3ed452bb708a8ca2e3ff51b62988efb8cc51aeef9f651227c3e1fb21178c04af669a22dedaabbc266b46aef3e24f

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

Filesize
1KB

MD5
12ee3b4a1e6d1dbfdbba43f028465a09

SHA1
7c7cb9f3c0cdbbf2c66928e2c597d9e8b1a20690

SHA256
2a286e6969674133ae686cb1f2212e0cfc147376f284c3b067bbf787a0437238

SHA512
3d5a4f0e29a43fe7253321b914afc424364174b6e0ab01d77d922bfc63a5aa7d651470bd8c6bd073a471fca5a895caff2abba91c72752bafca8313feebaa1646

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0b4cwcsq.quv.ps1

Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
memory/1420-1-0x0000000000750000-0x000000000076A000-memory.dmp

Filesize
104KB

Download
memory/1420-185-0x00007FFB5DDC0000-0x00007FFB5E7AC000-memory.dmp

Filesize
9.9MB

Download
memory/1420-184-0x00007FFB5DDC0000-0x00007FFB5E7AC000-memory.dmp

Filesize
9.9MB

Download
memory/1420-0-0x00007FFB5DDC3000-0x00007FFB5DDC4000-memory.dmp

Filesize
4KB

Download
memory/1420-183-0x00007FFB5DDC0000-0x00007FFB5E7AC000-memory.dmp

Filesize
9.9MB

Download
memory/3236-8-0x00007FFB5DDC0000-0x00007FFB5E7AC000-memory.dmp

Filesize
9.9MB

Download
memory/3236-52-0x00007FFB5DDC0000-0x00007FFB5E7AC000-memory.dmp

Filesize
9.9MB

Download
memory/3236-48-0x00007FFB5DDC0000-0x00007FFB5E7AC000-memory.dmp

Filesize
9.9MB

Download
memory/3236-25-0x00007FFB5DDC0000-0x00007FFB5E7AC000-memory.dmp

Filesize
9.9MB

Download
memory/3236-12-0x00007FFB5DDC0000-0x00007FFB5E7AC000-memory.dmp

Filesize
9.9MB

Download
memory/3236-11-0x0000016FC7060000-0x0000016FC70D6000-memory.dmp

Filesize
472KB

Download
memory/3236-7-0x00007FFB5DDC0000-0x00007FFB5E7AC000-memory.dmp

Filesize
9.9MB

Download
memory/3236-6-0x0000016FC6D30000-0x0000016FC6D52000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads