xworm | baa8ace81d5e51f20fea99bf6b8de26c594a2011b670883304e085e5a9847eb2

Analysis

max time kernel
28s
max time network
29s
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 20:40

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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
behavioral3/memory/3936-1-0x00000000004F0000-0x000000000050A000-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
1856	powershell.exe
1572	powershell.exe
4880	powershell.exe
2160	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-1-5-21-1687926120-3022217735-1146543763-1000\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 (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	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\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\AccentColor = "4292311040"	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\Themes\History\AutoColor = "0"	LogonUI.exe
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\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\ColorizationAfterglowBalance = "10"	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\ColorizationGlassAttribute = "1"	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
1856	powershell.exe
1856	powershell.exe
1856	powershell.exe
1572	powershell.exe
1572	powershell.exe
1572	powershell.exe
4880	powershell.exe
4880	powershell.exe
4880	powershell.exe
2160	powershell.exe
2160	powershell.exe
2160	powershell.exe
3936	XClient.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3936	XClient.exe
Token: SeDebugPrivilege	1856	powershell.exe
Token: SeIncreaseQuotaPrivilege	1856	powershell.exe
Token: SeSecurityPrivilege	1856	powershell.exe
Token: SeTakeOwnershipPrivilege	1856	powershell.exe
Token: SeLoadDriverPrivilege	1856	powershell.exe
Token: SeSystemProfilePrivilege	1856	powershell.exe
Token: SeSystemtimePrivilege	1856	powershell.exe
Token: SeProfSingleProcessPrivilege	1856	powershell.exe
Token: SeIncBasePriorityPrivilege	1856	powershell.exe
Token: SeCreatePagefilePrivilege	1856	powershell.exe
Token: SeBackupPrivilege	1856	powershell.exe
Token: SeRestorePrivilege	1856	powershell.exe
Token: SeShutdownPrivilege	1856	powershell.exe
Token: SeDebugPrivilege	1856	powershell.exe
Token: SeSystemEnvironmentPrivilege	1856	powershell.exe
Token: SeRemoteShutdownPrivilege	1856	powershell.exe
Token: SeUndockPrivilege	1856	powershell.exe
Token: SeManageVolumePrivilege	1856	powershell.exe
Token: 33	1856	powershell.exe
Token: 34	1856	powershell.exe
Token: 35	1856	powershell.exe
Token: 36	1856	powershell.exe
Token: SeDebugPrivilege	1572	powershell.exe
Token: SeIncreaseQuotaPrivilege	1572	powershell.exe
Token: SeSecurityPrivilege	1572	powershell.exe
Token: SeTakeOwnershipPrivilege	1572	powershell.exe
Token: SeLoadDriverPrivilege	1572	powershell.exe
Token: SeSystemProfilePrivilege	1572	powershell.exe
Token: SeSystemtimePrivilege	1572	powershell.exe
Token: SeProfSingleProcessPrivilege	1572	powershell.exe
Token: SeIncBasePriorityPrivilege	1572	powershell.exe
Token: SeCreatePagefilePrivilege	1572	powershell.exe
Token: SeBackupPrivilege	1572	powershell.exe
Token: SeRestorePrivilege	1572	powershell.exe
Token: SeShutdownPrivilege	1572	powershell.exe
Token: SeDebugPrivilege	1572	powershell.exe
Token: SeSystemEnvironmentPrivilege	1572	powershell.exe
Token: SeRemoteShutdownPrivilege	1572	powershell.exe
Token: SeUndockPrivilege	1572	powershell.exe
Token: SeManageVolumePrivilege	1572	powershell.exe
Token: 33	1572	powershell.exe
Token: 34	1572	powershell.exe
Token: 35	1572	powershell.exe
Token: 36	1572	powershell.exe
Token: SeDebugPrivilege	4880	powershell.exe
Token: SeIncreaseQuotaPrivilege	4880	powershell.exe
Token: SeSecurityPrivilege	4880	powershell.exe
Token: SeTakeOwnershipPrivilege	4880	powershell.exe
Token: SeLoadDriverPrivilege	4880	powershell.exe
Token: SeSystemProfilePrivilege	4880	powershell.exe
Token: SeSystemtimePrivilege	4880	powershell.exe
Token: SeProfSingleProcessPrivilege	4880	powershell.exe
Token: SeIncBasePriorityPrivilege	4880	powershell.exe
Token: SeCreatePagefilePrivilege	4880	powershell.exe
Token: SeBackupPrivilege	4880	powershell.exe
Token: SeRestorePrivilege	4880	powershell.exe
Token: SeShutdownPrivilege	4880	powershell.exe
Token: SeDebugPrivilege	4880	powershell.exe
Token: SeSystemEnvironmentPrivilege	4880	powershell.exe
Token: SeRemoteShutdownPrivilege	4880	powershell.exe
Token: SeUndockPrivilege	4880	powershell.exe
Token: SeManageVolumePrivilege	4880	powershell.exe
Token: 33	4880	powershell.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3936	XClient.exe
1000	LogonUI.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3936 wrote to memory of 1856	3936	XClient.exe	74
PID 3936 wrote to memory of 1856	3936	XClient.exe	74
PID 3936 wrote to memory of 1572	3936	XClient.exe	77
PID 3936 wrote to memory of 1572	3936	XClient.exe	77
PID 3936 wrote to memory of 4880	3936	XClient.exe	79
PID 3936 wrote to memory of 4880	3936	XClient.exe	79
PID 3936 wrote to memory of 2160	3936	XClient.exe	81
PID 3936 wrote to memory of 2160	3936	XClient.exe	81
PID 3936 wrote to memory of 4304	3936	XClient.exe	84
PID 3936 wrote to memory of 4304	3936	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:3936
- 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:1856
- 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:1572
- 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:4880
- 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:2160
- C:\Windows\SYSTEM32\shutdown.exe
  shutdown.exe /f /s /t 0
  2⤵
  PID:4304

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0 /state0:0xa3ae5855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:1000

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
ae5a113377cb40c653f5f62f33043638

SHA1
028b06435fbd8573e4605ffbdd3aa342f89073c7

SHA256
83aee16b3333eb2f4d57b3ff24289f92d3daa0a6d67361b23787d5282ee7203e

SHA512
f7b7aa0f6e1f0c4e8a2609bd86d8b2ac0b038f87eb507b8c6e0a9260c807f48a660ce9eba7e970cbff863f2279c101bef0703cccf5f042c9e36200b3bd6f1aec

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

Filesize
1KB

MD5
260fe96bc2902a1ba0659e04ce44fafb

SHA1
66b3202f3809afdf5a2ec9ddca75a3ad78849c73

SHA256
04d33551d3eb9b359704bfe8afcecdb8b008e30c1d1673f604e98720dd14021e

SHA512
3e8560beec7ebbbc4fa18088eeb971255e7882099ed5a545122a585b62c3fad6dd6b6b0bb584ba793bb3793e2137e74e49555c226486526c17209a5ab6791456

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

Filesize
1KB

MD5
d26e61b05e1a82bc1ed5078b6f020fbb

SHA1
5a7b374a664e5975e3aacab00e30fb499bbc5dd8

SHA256
7788aceab7325c7eaeb0c7c6ef1def257f8ffe731874f9b9d3247590528b6011

SHA512
75bfdbfc5e79404951e82448f68cb14b70091ba5abf4119029c826b403ca30d0612d3ab8cdb8190f1c8269ccd5cea27e17736b123990c96557d1cbb61f1a5f1c

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_eexxywkr.byk.ps1

Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
memory/1856-9-0x000001E578920000-0x000001E578996000-memory.dmp

Filesize
472KB

Download
memory/1856-11-0x00007FFB66330000-0x00007FFB66D1C000-memory.dmp

Filesize
9.9MB

Download
memory/1856-24-0x00007FFB66330000-0x00007FFB66D1C000-memory.dmp

Filesize
9.9MB

Download
memory/1856-25-0x00007FFB66330000-0x00007FFB66D1C000-memory.dmp

Filesize
9.9MB

Download
memory/1856-51-0x00007FFB66330000-0x00007FFB66D1C000-memory.dmp

Filesize
9.9MB

Download
memory/1856-52-0x00007FFB66330000-0x00007FFB66D1C000-memory.dmp

Filesize
9.9MB

Download
memory/1856-10-0x00007FFB66330000-0x00007FFB66D1C000-memory.dmp

Filesize
9.9MB

Download
memory/1856-6-0x000001E578710000-0x000001E578732000-memory.dmp

Filesize
136KB

Download
memory/3936-0-0x00007FFB66333000-0x00007FFB66334000-memory.dmp

Filesize
4KB

Download
memory/3936-1-0x00000000004F0000-0x000000000050A000-memory.dmp

Filesize
104KB

Download
memory/3936-184-0x00007FFB66330000-0x00007FFB66D1C000-memory.dmp

Filesize
9.9MB

Download
memory/3936-185-0x00007FFB66333000-0x00007FFB66334000-memory.dmp

Filesize
4KB

Download
memory/3936-186-0x00007FFB66330000-0x00007FFB66D1C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads