xworm | baa8ace81d5e51f20fea99bf6b8de26c594a2011b670883304e085e5a9847eb2

Analysis

max time kernel
19s
max time network
20s
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 20:54

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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/3380-0-0x00000000007B0000-0x00000000007CA000-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
4776	powershell.exe
1528	powershell.exe
4528	powershell.exe
1700	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-1-5-21-3699363923-1875576828-3287151903-1000\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\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\Themes\History\AutoColor = "0"	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\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\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	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\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
4528	powershell.exe
4528	powershell.exe
4528	powershell.exe
1700	powershell.exe
1700	powershell.exe
1700	powershell.exe
4776	powershell.exe
4776	powershell.exe
4776	powershell.exe
1528	powershell.exe
1528	powershell.exe
1528	powershell.exe
3380	XClient.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3380	XClient.exe
Token: SeDebugPrivilege	4528	powershell.exe
Token: SeIncreaseQuotaPrivilege	4528	powershell.exe
Token: SeSecurityPrivilege	4528	powershell.exe
Token: SeTakeOwnershipPrivilege	4528	powershell.exe
Token: SeLoadDriverPrivilege	4528	powershell.exe
Token: SeSystemProfilePrivilege	4528	powershell.exe
Token: SeSystemtimePrivilege	4528	powershell.exe
Token: SeProfSingleProcessPrivilege	4528	powershell.exe
Token: SeIncBasePriorityPrivilege	4528	powershell.exe
Token: SeCreatePagefilePrivilege	4528	powershell.exe
Token: SeBackupPrivilege	4528	powershell.exe
Token: SeRestorePrivilege	4528	powershell.exe
Token: SeShutdownPrivilege	4528	powershell.exe
Token: SeDebugPrivilege	4528	powershell.exe
Token: SeSystemEnvironmentPrivilege	4528	powershell.exe
Token: SeRemoteShutdownPrivilege	4528	powershell.exe
Token: SeUndockPrivilege	4528	powershell.exe
Token: SeManageVolumePrivilege	4528	powershell.exe
Token: 33	4528	powershell.exe
Token: 34	4528	powershell.exe
Token: 35	4528	powershell.exe
Token: 36	4528	powershell.exe
Token: SeDebugPrivilege	1700	powershell.exe
Token: SeIncreaseQuotaPrivilege	1700	powershell.exe
Token: SeSecurityPrivilege	1700	powershell.exe
Token: SeTakeOwnershipPrivilege	1700	powershell.exe
Token: SeLoadDriverPrivilege	1700	powershell.exe
Token: SeSystemProfilePrivilege	1700	powershell.exe
Token: SeSystemtimePrivilege	1700	powershell.exe
Token: SeProfSingleProcessPrivilege	1700	powershell.exe
Token: SeIncBasePriorityPrivilege	1700	powershell.exe
Token: SeCreatePagefilePrivilege	1700	powershell.exe
Token: SeBackupPrivilege	1700	powershell.exe
Token: SeRestorePrivilege	1700	powershell.exe
Token: SeShutdownPrivilege	1700	powershell.exe
Token: SeDebugPrivilege	1700	powershell.exe
Token: SeSystemEnvironmentPrivilege	1700	powershell.exe
Token: SeRemoteShutdownPrivilege	1700	powershell.exe
Token: SeUndockPrivilege	1700	powershell.exe
Token: SeManageVolumePrivilege	1700	powershell.exe
Token: 33	1700	powershell.exe
Token: 34	1700	powershell.exe
Token: 35	1700	powershell.exe
Token: 36	1700	powershell.exe
Token: SeDebugPrivilege	4776	powershell.exe
Token: SeIncreaseQuotaPrivilege	4776	powershell.exe
Token: SeSecurityPrivilege	4776	powershell.exe
Token: SeTakeOwnershipPrivilege	4776	powershell.exe
Token: SeLoadDriverPrivilege	4776	powershell.exe
Token: SeSystemProfilePrivilege	4776	powershell.exe
Token: SeSystemtimePrivilege	4776	powershell.exe
Token: SeProfSingleProcessPrivilege	4776	powershell.exe
Token: SeIncBasePriorityPrivilege	4776	powershell.exe
Token: SeCreatePagefilePrivilege	4776	powershell.exe
Token: SeBackupPrivilege	4776	powershell.exe
Token: SeRestorePrivilege	4776	powershell.exe
Token: SeShutdownPrivilege	4776	powershell.exe
Token: SeDebugPrivilege	4776	powershell.exe
Token: SeSystemEnvironmentPrivilege	4776	powershell.exe
Token: SeRemoteShutdownPrivilege	4776	powershell.exe
Token: SeUndockPrivilege	4776	powershell.exe
Token: SeManageVolumePrivilege	4776	powershell.exe
Token: 33	4776	powershell.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3380	XClient.exe
2344	LogonUI.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3380 wrote to memory of 4528	3380	XClient.exe	74
PID 3380 wrote to memory of 4528	3380	XClient.exe	74
PID 3380 wrote to memory of 1700	3380	XClient.exe	77
PID 3380 wrote to memory of 1700	3380	XClient.exe	77
PID 3380 wrote to memory of 4776	3380	XClient.exe	79
PID 3380 wrote to memory of 4776	3380	XClient.exe	79
PID 3380 wrote to memory of 1528	3380	XClient.exe	81
PID 3380 wrote to memory of 1528	3380	XClient.exe	81
PID 3380 wrote to memory of 1620	3380	XClient.exe	84
PID 3380 wrote to memory of 1620	3380	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:3380
- 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:4528
- 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:1700
- 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:4776
- 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:1528
- C:\Windows\SYSTEM32\shutdown.exe
  shutdown.exe /f /s /t 0
  2⤵
  PID:1620

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0 /state0:0xa3aea055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:2344

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
6e4d70d58847c56e862656509c92218a

SHA1
ba8e1673f1c4d4bae30a9b6d1aff32fbcca7e27e

SHA256
08344b64f4afef808f26027720c9a5c21638ba27d83504eca22a9f0529029d74

SHA512
ed033ee043955daf4601d42c67e75e7b0eee740c81df055c0e701796fa8d07d8658ab7746ca9e959a454859e3f45eb2c6fbdb14886014dc2d2410971dfbd0bda

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

Filesize
1KB

MD5
9dbbc73e23c6ee3637bd9b1db6cfd9eb

SHA1
6d999d8975cf56e8355fef738fe7af224d981e80

SHA256
bf88e75bdf1e2fd8be39edc75317b27c818c89b385518be007daa418e4c86c2d

SHA512
51201057096fd231b5d2d092ab10497f86a5f39c1566857c8477248eb9b72d22fa3d53a4576f7213580db40cfa86d091b4bc0a634bc9ca3a24ee0a02e8ee1936

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

Filesize
1KB

MD5
87b5b5a1788e57ba918df279c289baef

SHA1
4caac97a6a5a757a6b141c5bd9f7e82925b29e34

SHA256
86e02dc3a3d466d2c38e3274ca4e91149ab24fa99b06ddf89c53844bbae4243a

SHA512
62e046a87e810324a945844a31c00942a65a40abc06b158936a4b4d62df569671ad67062e3ad7f73c5a0d7e27219732d0de93effdcdbe9efd5fb0110bdf251c8

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sqdukyyn.h5x.ps1

Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
memory/3380-1-0x00007FF878843000-0x00007FF878844000-memory.dmp

Filesize
4KB

Download
memory/3380-186-0x00007FF878840000-0x00007FF87922C000-memory.dmp

Filesize
9.9MB

Download
memory/3380-185-0x00007FF878843000-0x00007FF878844000-memory.dmp

Filesize
4KB

Download
memory/3380-0-0x00000000007B0000-0x00000000007CA000-memory.dmp

Filesize
104KB

Download
memory/3380-184-0x00007FF878840000-0x00007FF87922C000-memory.dmp

Filesize
9.9MB

Download
memory/4528-11-0x00007FF878840000-0x00007FF87922C000-memory.dmp

Filesize
9.9MB

Download
memory/4528-52-0x00007FF878840000-0x00007FF87922C000-memory.dmp

Filesize
9.9MB

Download
memory/4528-48-0x00007FF878840000-0x00007FF87922C000-memory.dmp

Filesize
9.9MB

Download
memory/4528-45-0x00007FF878840000-0x00007FF87922C000-memory.dmp

Filesize
9.9MB

Download
memory/4528-12-0x00007FF878840000-0x00007FF87922C000-memory.dmp

Filesize
9.9MB

Download
memory/4528-10-0x0000015FFBFE0000-0x0000015FFC056000-memory.dmp

Filesize
472KB

Download
memory/4528-9-0x00007FF878840000-0x00007FF87922C000-memory.dmp

Filesize
9.9MB

Download
memory/4528-6-0x0000015FFBE20000-0x0000015FFBE42000-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