xworm | 1c4c8d4b80aadd685bf7344b326116a30265c0c1ca7cbaf40f3719b825a2740a

Reason

Machine shutdown

General

Target

perm.exe
Size

46.0MB
MD5

c09e00509d7efa941fd97f50ee999feb
SHA1

117361c0c4d9aee118c7cfa4b44af9c561f2d2f9
SHA256

1c4c8d4b80aadd685bf7344b326116a30265c0c1ca7cbaf40f3719b825a2740a
SHA512

3a4e50e44deb484d296579d5d40e9379cef1a4f62869dd2a753244849019c77837defc4bf3349b68b5f9b61b30ea29f4d5f7d087c0d1b321e06e5d93beb69ca1
SSDEEP

393216:9YXEXR3uzMK0GWSFqlV3lYWmnHGm8mtGDfdJlU8Jq8tA9KxFxCfV:9YXEXhuzMmF26WmnHGrO1

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

trip-thesaurus.gl.at.ply.gg:16715

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/4848-1-0x0000000000C30000-0x0000000000C4A000-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
484	powershell.exe
2556	powershell.exe
2072	powershell.exe
2212	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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	perm.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SecurityHealthSystray.lnk	perm.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SecurityHealthSystray.lnk	perm.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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SecurityHealthSystray = "C:\\Users\\Admin\\AppData\\Roaming\\SecurityHealthSystray"	perm.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
10	ip-api.com

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

System Information Discovery
T1082

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000	taskmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A	taskmgr.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName	taskmgr.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
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\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	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 = "46"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	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\DWM\ColorizationBlurBalance = "1"	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
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

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1900	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4848	perm.exe

Suspicious behavior: EnumeratesProcesses 42 IoCs

pid	Process
2072	powershell.exe
2072	powershell.exe
2212	powershell.exe
2212	powershell.exe
484	powershell.exe
484	powershell.exe
2556	powershell.exe
2556	powershell.exe
4848	perm.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeDebugPrivilege	4848	perm.exe
Token: SeDebugPrivilege	2072	powershell.exe
Token: SeDebugPrivilege	2212	powershell.exe
Token: SeDebugPrivilege	484	powershell.exe
Token: SeDebugPrivilege	2556	powershell.exe
Token: SeDebugPrivilege	4848	perm.exe
Token: SeDebugPrivilege	2256	taskmgr.exe
Token: SeSystemProfilePrivilege	2256	taskmgr.exe
Token: SeCreateGlobalPrivilege	2256	taskmgr.exe
Token: SeShutdownPrivilege	4936	shutdown.exe
Token: SeRemoteShutdownPrivilege	4936	shutdown.exe

Suspicious use of FindShellTrayWindow 43 IoCs

pid	Process
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe

Suspicious use of SendNotifyMessage 43 IoCs

pid	Process
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe
2256	taskmgr.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4848	perm.exe
4896	LogonUI.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4848 wrote to memory of 2072	4848	perm.exe	84
PID 4848 wrote to memory of 2072	4848	perm.exe	84
PID 4848 wrote to memory of 2212	4848	perm.exe	86
PID 4848 wrote to memory of 2212	4848	perm.exe	86
PID 4848 wrote to memory of 484	4848	perm.exe	88
PID 4848 wrote to memory of 484	4848	perm.exe	88
PID 4848 wrote to memory of 2556	4848	perm.exe	90
PID 4848 wrote to memory of 2556	4848	perm.exe	90
PID 4848 wrote to memory of 1900	4848	perm.exe	92
PID 4848 wrote to memory of 1900	4848	perm.exe	92
PID 4848 wrote to memory of 4936	4848	perm.exe	103
PID 4848 wrote to memory of 4936	4848	perm.exe	103

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\perm.exe
"C:\Users\Admin\AppData\Local\Temp\perm.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4848
- 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\perm.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2072
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'perm.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2212
- 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\SecurityHealthSystray'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:484
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SecurityHealthSystray'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2556
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "SecurityHealthSystray" /tr "C:\Users\Admin\AppData\Roaming\SecurityHealthSystray"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1900
- C:\Windows\SYSTEM32\shutdown.exe
  shutdown.exe /f /s /t 0
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4936

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2256

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3951055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:4896

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

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
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

Filesize
944B

MD5
e7b9a76fad45873a83e4923d0d14d6d2

SHA1
c0837e5554678f9cfb33b958890214363bfeccbb

SHA256
0cf6e27cb9218ec8ba98c3b2e5efc4803bcbc5c999d3e6e980864b2b7efc4b11

SHA512
5a63ab01234c8cced993ccd0eca43257493dfe1f30a8273e51e8469c55383d1204b56949400a7742c6f82bd2bdcd86e82d8ccba7a8f4d5a3076a37b7bb7f708b

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

Filesize
944B

MD5
a2c8179aaa149c0b9791b73ce44c04d1

SHA1
703361b0d43ec7f669304e7c0ffbbfdeb1e484ff

SHA256
c1d30342a40a2b6e7553da30ceb85754d33820f6fbb3bbbed1ceb30d6390de4a

SHA512
2e201dd457d055baad86f68c15bcc7beb48d6dc2ffc10db7f304eb93f697e7b45991cbde857d25da2c9c60c23f3e13df8b5ed5809c1753737a23096e296cc9e3

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

Filesize
944B

MD5
eb1ad317bd25b55b2bbdce8a28a74a94

SHA1
98a3978be4d10d62e7411946474579ee5bdc5ea6

SHA256
9e94e7c9ac6134ee30e79498558aa1a5a1ac79a643666c3f8922eed215dd3a98

SHA512
d011f266c0240d84470c0f9577cd9e4927309bd19bb38570ca9704ed8e1d159f9bea982a59d3eefef72ce7a10bd81208b82e88ef57c7af587f7437a89769adc0

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_y0wsef50.eyk.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SecurityHealthSystray.lnk

Filesize
819B

MD5
880863d1006970e4854fa5a34eaf28aa

SHA1
6f67f906342004045c4106b40f008d3b2f1d5300

SHA256
77d40d71b995e612fd9617ad67dc317698b407667c65b100db72ac36357aa46f

SHA512
058c90060eac54bcb10dac7768dc04773d35b85a55d41a20ca0678f180eae10daa4d48a68d8259f2ccffc7204618fc0173b19bd41de589df29c12a139d974b06

Download Submit
C:\Users\Admin\AppData\Roaming\SecurityHealthSystray

Filesize
46.0MB

MD5
c09e00509d7efa941fd97f50ee999feb

SHA1
117361c0c4d9aee118c7cfa4b44af9c561f2d2f9

SHA256
1c4c8d4b80aadd685bf7344b326116a30265c0c1ca7cbaf40f3719b825a2740a

SHA512
3a4e50e44deb484d296579d5d40e9379cef1a4f62869dd2a753244849019c77837defc4bf3349b68b5f9b61b30ea29f4d5f7d087c0d1b321e06e5d93beb69ca1

Download Submit
memory/2072-3-0x00007FFA5E940000-0x00007FFA5F401000-memory.dmp

Filesize
10.8MB

Download
memory/2072-13-0x00007FFA5E940000-0x00007FFA5F401000-memory.dmp

Filesize
10.8MB

Download
memory/2072-14-0x00007FFA5E940000-0x00007FFA5F401000-memory.dmp

Filesize
10.8MB

Download
memory/2072-15-0x000001E060A40000-0x000001E060A62000-memory.dmp

Filesize
136KB

Download
memory/2072-18-0x00007FFA5E940000-0x00007FFA5F401000-memory.dmp

Filesize
10.8MB

Download
memory/2256-67-0x0000013D4FFA0000-0x0000013D4FFA1000-memory.dmp

Filesize
4KB

Download
memory/2256-69-0x0000013D4FFA0000-0x0000013D4FFA1000-memory.dmp

Filesize
4KB

Download
memory/2256-64-0x0000013D4FFA0000-0x0000013D4FFA1000-memory.dmp

Filesize
4KB

Download
memory/2256-58-0x0000013D4FFA0000-0x0000013D4FFA1000-memory.dmp

Filesize
4KB

Download
memory/2256-59-0x0000013D4FFA0000-0x0000013D4FFA1000-memory.dmp

Filesize
4KB

Download
memory/2256-60-0x0000013D4FFA0000-0x0000013D4FFA1000-memory.dmp

Filesize
4KB

Download
memory/2256-70-0x0000013D4FFA0000-0x0000013D4FFA1000-memory.dmp

Filesize
4KB

Download
memory/2256-65-0x0000013D4FFA0000-0x0000013D4FFA1000-memory.dmp

Filesize
4KB

Download
memory/2256-68-0x0000013D4FFA0000-0x0000013D4FFA1000-memory.dmp

Filesize
4KB

Download
memory/2256-66-0x0000013D4FFA0000-0x0000013D4FFA1000-memory.dmp

Filesize
4KB

Download
memory/4848-0-0x00007FFA5E943000-0x00007FFA5E945000-memory.dmp

Filesize
8KB

Download
memory/4848-53-0x00007FFA5E943000-0x00007FFA5E945000-memory.dmp

Filesize
8KB

Download
memory/4848-57-0x00007FFA5E940000-0x00007FFA5F401000-memory.dmp

Filesize
10.8MB

Download
memory/4848-2-0x00007FFA5E940000-0x00007FFA5F401000-memory.dmp

Filesize
10.8MB

Download
memory/4848-1-0x0000000000C30000-0x0000000000C4A000-memory.dmp

Filesize
104KB

Download
memory/4848-73-0x00007FFA5E940000-0x00007FFA5F401000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads