aee69ef9040e902b7a6639d7594df47e0e73625143a671583db8b85be525a3e5

Resubmissions

02/03/2024, 22:38

240302-2kwptaae3710

02/03/2024, 22:34

240302-2g86qsad9610

Analysis

max time kernel
19s
max time network
27s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
02/03/2024, 22:38

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Reason

Machine shutdown

General

Target
Fake AV/CleanThis.exe
Size 618KB
Sample240302-2kwptaae37
SHA256 cf6eb8377789e316629c0396a2dbb53c69b5fd67bbd0e7163b8d305aaa756e90
MD5 a50fc0da1d2b3c4aa8a6adaccf69a5de
SHA1 e001f4043ab4be644ea10e0d65303d6e57b31ffe
SHA512 4bbc7676391ed4085f628d1f4e1f0af16f5cd6fd9efb8c61176bccdb6ee03b06896c6ddfba9fcf363b133ade3a8a1b8cd17ef92d8eb9adeec247f9bd41dbec2b
SSDEEP 12288:EQIfqOiX9P/aazd1ctyDXHrJW2dGMToCRn5VxWRaqsrOkqgyQD:EQIydX/d1rTLRd/TvVUsrOkqFQD
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Roaming\\gog.exe"	CleanThis.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral14/memory/3800-0-0x0000000000400000-0x000000000057F000-memory.dmp	upx
behavioral14/memory/3800-4-0x0000000000400000-0x000000000057F000-memory.dmp	upx
behavioral14/memory/3800-5-0x0000000000400000-0x000000000057F000-memory.dmp	upx

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk 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\services\Disk\Enum	CleanThis.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	CleanThis.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\ColorizationAfterglowBalance = "10"	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\DWM\ColorizationColorBalance = "89"	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\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\EnableWindowColorization = "221"	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\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\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 54 IoCs

pid	Process
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe
3800	CleanThis.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3800	CleanThis.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3800	CleanThis.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
3800	CleanThis.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
3800	CleanThis.exe
3800	CleanThis.exe
2560	LogonUI.exe

C:\Users\Admin\AppData\Local\Temp\Fake AV\CleanThis.exe
"C:\Users\Admin\AppData\Local\Temp\Fake AV\CleanThis.exe"
1⤵
- Modifies WinLogon for persistence
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:3800

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa399f055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:2560

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3800-0-0x0000000000400000-0x000000000057F000-memory.dmp

Download

memory/3800-1-0x0000000000B90000-0x0000000000B91000-memory.dmp

Download

memory/3800-4-0x0000000000400000-0x000000000057F000-memory.dmp

Download

memory/3800-5-0x0000000000400000-0x000000000057F000-memory.dmp

Download

Resubmissions

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads