xworm | baa8ace81d5e51f20fea99bf6b8de26c594a2011b670883304e085e5a9847eb2

Analysis

max time kernel
68s
max time network
69s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
01-08-2024 20:55

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Reason

Machine shutdown

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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/4496-0-0x0000000000FA0000-0x0000000000FBA000-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
5096	powershell.exe
3720	powershell.exe
768	powershell.exe
5104	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-1-5-21-160447019-1232603106-4168707212-1000\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
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	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\DWM\ColorizationAfterglow = "3288365271"	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\DWM	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\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	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\Explorer\Accent\StartColorMenu = "4288567808"	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\ColorizationBlurBalance = "1"	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
5096	powershell.exe
5096	powershell.exe
5096	powershell.exe
3720	powershell.exe
3720	powershell.exe
3720	powershell.exe
768	powershell.exe
768	powershell.exe
768	powershell.exe
5104	powershell.exe
5104	powershell.exe
5104	powershell.exe
4496	XClient.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4496	XClient.exe
Token: SeDebugPrivilege	5096	powershell.exe
Token: SeIncreaseQuotaPrivilege	5096	powershell.exe
Token: SeSecurityPrivilege	5096	powershell.exe
Token: SeTakeOwnershipPrivilege	5096	powershell.exe
Token: SeLoadDriverPrivilege	5096	powershell.exe
Token: SeSystemProfilePrivilege	5096	powershell.exe
Token: SeSystemtimePrivilege	5096	powershell.exe
Token: SeProfSingleProcessPrivilege	5096	powershell.exe
Token: SeIncBasePriorityPrivilege	5096	powershell.exe
Token: SeCreatePagefilePrivilege	5096	powershell.exe
Token: SeBackupPrivilege	5096	powershell.exe
Token: SeRestorePrivilege	5096	powershell.exe
Token: SeShutdownPrivilege	5096	powershell.exe
Token: SeDebugPrivilege	5096	powershell.exe
Token: SeSystemEnvironmentPrivilege	5096	powershell.exe
Token: SeRemoteShutdownPrivilege	5096	powershell.exe
Token: SeUndockPrivilege	5096	powershell.exe
Token: SeManageVolumePrivilege	5096	powershell.exe
Token: 33	5096	powershell.exe
Token: 34	5096	powershell.exe
Token: 35	5096	powershell.exe
Token: 36	5096	powershell.exe
Token: SeDebugPrivilege	3720	powershell.exe
Token: SeIncreaseQuotaPrivilege	3720	powershell.exe
Token: SeSecurityPrivilege	3720	powershell.exe
Token: SeTakeOwnershipPrivilege	3720	powershell.exe
Token: SeLoadDriverPrivilege	3720	powershell.exe
Token: SeSystemProfilePrivilege	3720	powershell.exe
Token: SeSystemtimePrivilege	3720	powershell.exe
Token: SeProfSingleProcessPrivilege	3720	powershell.exe
Token: SeIncBasePriorityPrivilege	3720	powershell.exe
Token: SeCreatePagefilePrivilege	3720	powershell.exe
Token: SeBackupPrivilege	3720	powershell.exe
Token: SeRestorePrivilege	3720	powershell.exe
Token: SeShutdownPrivilege	3720	powershell.exe
Token: SeDebugPrivilege	3720	powershell.exe
Token: SeSystemEnvironmentPrivilege	3720	powershell.exe
Token: SeRemoteShutdownPrivilege	3720	powershell.exe
Token: SeUndockPrivilege	3720	powershell.exe
Token: SeManageVolumePrivilege	3720	powershell.exe
Token: 33	3720	powershell.exe
Token: 34	3720	powershell.exe
Token: 35	3720	powershell.exe
Token: 36	3720	powershell.exe
Token: SeDebugPrivilege	768	powershell.exe
Token: SeIncreaseQuotaPrivilege	768	powershell.exe
Token: SeSecurityPrivilege	768	powershell.exe
Token: SeTakeOwnershipPrivilege	768	powershell.exe
Token: SeLoadDriverPrivilege	768	powershell.exe
Token: SeSystemProfilePrivilege	768	powershell.exe
Token: SeSystemtimePrivilege	768	powershell.exe
Token: SeProfSingleProcessPrivilege	768	powershell.exe
Token: SeIncBasePriorityPrivilege	768	powershell.exe
Token: SeCreatePagefilePrivilege	768	powershell.exe
Token: SeBackupPrivilege	768	powershell.exe
Token: SeRestorePrivilege	768	powershell.exe
Token: SeShutdownPrivilege	768	powershell.exe
Token: SeDebugPrivilege	768	powershell.exe
Token: SeSystemEnvironmentPrivilege	768	powershell.exe
Token: SeRemoteShutdownPrivilege	768	powershell.exe
Token: SeUndockPrivilege	768	powershell.exe
Token: SeManageVolumePrivilege	768	powershell.exe
Token: 33	768	powershell.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4496	XClient.exe
4868	LogonUI.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4496 wrote to memory of 5096	4496	XClient.exe	74
PID 4496 wrote to memory of 5096	4496	XClient.exe	74
PID 4496 wrote to memory of 3720	4496	XClient.exe	77
PID 4496 wrote to memory of 3720	4496	XClient.exe	77
PID 4496 wrote to memory of 768	4496	XClient.exe	79
PID 4496 wrote to memory of 768	4496	XClient.exe	79
PID 4496 wrote to memory of 5104	4496	XClient.exe	81
PID 4496 wrote to memory of 5104	4496	XClient.exe	81
PID 4496 wrote to memory of 2112	4496	XClient.exe	84
PID 4496 wrote to memory of 2112	4496	XClient.exe	84

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:4496
- 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:5096
- 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:3720
- 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:768
- 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:5104
- C:\Windows\SYSTEM32\shutdown.exe
  shutdown.exe /f /s /t 0
  2⤵
  PID:2112

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0 /state0:0xa3ae7055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:4868

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
ad5cd538ca58cb28ede39c108acb5785

SHA1
1ae910026f3dbe90ed025e9e96ead2b5399be877

SHA256
c9e6cb04d6c893458d5a7e12eb575cf97c3172f5e312b1f63a667cbbc5f0c033

SHA512
c066c5d9b276a68fa636647bb29aea05bfa2292217bc77f5324d9c1d93117772ee8277e1f7cff91ec8d6b7c05ca078f929cecfdbb09582522a9067f54740af13

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

Filesize
1KB

MD5
b3b2c21a3c56abe77aa7b085008f501a

SHA1
851bd4c2b6bed5970b11852e3af6260c497a5372

SHA256
17c58f50e9589b3720dafbc00ea9b9c0c961d412b6335e2868bcfba969888eb1

SHA512
6c108cf9d73686f2c88ce6ff1e578c939dd1cf34eb3049cad9fffc23058ee084338ff65e025440de4cbda78a74d34301ccdd3972ceb9d15aa84616b9573efe29

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

Filesize
1KB

MD5
bcb2e2323545ecd3b8cb8dac2a988556

SHA1
b6fb49349cafcb5ce2e413a8b627a21a20989733

SHA256
b76d01d7f6fdd1db38685718832b7fbf36fe5c8204c8a451d0103bb9166d5be6

SHA512
f217910c11cbe02be6ddf01e56eb6d1e427cb1b3501d2b675de8caa8548e7456dea9126171d2505b81e93d6455ae4258bada54321741ecab892f5e49766b9f01

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

Filesize
1KB

MD5
53a138d8463be7a5febe5b6d12e3b0a1

SHA1
6249e1b6cc37dc3885b1ed18cbfefef48c40f7f5

SHA256
335271cefa125af4b0e4e43e8d40f2c30a493e8c41a71e4319450372a270f54b

SHA512
ebd19af4cb0f873a752b14bb1b4093142aa42d0b03e4af1d53e74f96016d021174a51cdb2d2f4e91d26853415d9af53b1088103dc3456e76d649b86358f1e193

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jaur0lfn.h53.ps1

Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
memory/4496-1-0x00007FFBCC3E3000-0x00007FFBCC3E4000-memory.dmp

Filesize
4KB

Download
memory/4496-190-0x00007FFBCC3E0000-0x00007FFBCCDCC000-memory.dmp

Filesize
9.9MB

Download
memory/4496-189-0x00007FFBCC3E0000-0x00007FFBCCDCC000-memory.dmp

Filesize
9.9MB

Download
memory/4496-0-0x0000000000FA0000-0x0000000000FBA000-memory.dmp

Filesize
104KB

Download
memory/4496-188-0x00007FFBCC3E0000-0x00007FFBCCDCC000-memory.dmp

Filesize
9.9MB

Download
memory/5096-10-0x00007FFBCC3E0000-0x00007FFBCCDCC000-memory.dmp

Filesize
9.9MB

Download
memory/5096-53-0x00007FFBCC3E0000-0x00007FFBCCDCC000-memory.dmp

Filesize
9.9MB

Download
memory/5096-52-0x00007FFBCC3E0000-0x00007FFBCCDCC000-memory.dmp

Filesize
9.9MB

Download
memory/5096-42-0x00007FFBCC3E0000-0x00007FFBCCDCC000-memory.dmp

Filesize
9.9MB

Download
memory/5096-25-0x00007FFBCC3E0000-0x00007FFBCCDCC000-memory.dmp

Filesize
9.9MB

Download
memory/5096-17-0x00007FFBCC3E0000-0x00007FFBCCDCC000-memory.dmp

Filesize
9.9MB

Download
memory/5096-9-0x0000023BF3890000-0x0000023BF3906000-memory.dmp

Filesize
472KB

Download
memory/5096-6-0x0000023BF3390000-0x0000023BF33B2000-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