80c5e8f13d838fd509ddb0eaa4daf63c8d09b4d34556794cbcaec20875210208 | Triage

Analysis

max time kernel
16s
max time network
19s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241023-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
25-10-2024 15:13

Sharing

Reason

Machine shutdown

Report Analysis Logs

General

Target

other malware cuz why not/NoEscape.exe
Size

666KB
MD5

989ae3d195203b323aa2b3adf04e9833
SHA1

31a45521bc672abcf64e50284ca5d4e6b3687dc8
SHA256

d30d7676a3b4c91b77d403f81748ebf6b8824749db5f860e114a8a204bca5b8f
SHA512

e9d4e6295869f3a456c7ea2850c246d0c22afa65c2dd5161744ee5b3e29e44d9a2d758335f98001cdb348eaa51a71cd441b4ddc12c8d72509388657126e69305
SSDEEP

12288:85J5X487qJUtcWfkVJ6g5s/cD01oKHQyis2AePsr8nP712TB:s487pcZEgwcDpg1L2tbPR2t

Score

10^/10

discovery evasion persistence ransomware trojan

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

Winlogon Helper DLL

Modify Registry

Processes:

NoEscape.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\winnt32.exe"	NoEscape.exe

UAC bypass 3 TTPs 1 IoCs
evasion trojan

Bypass User Account Control
T1548.002

Disable or Modify Tools
T1562.001

Modify Registry
T1112

Processes:

NoEscape.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" NoEscape.exe

Disables RegEdit via registry modification 1 IoCs

Processes:

NoEscape.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-1361837696-2276465416-1936241636-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	NoEscape.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

NoEscape.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" NoEscape.exe

Drops desktop.ini file(s) 2 IoCs

Processes:

NoEscape.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	NoEscape.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	NoEscape.exe

Modifies WinLogon 2 TTPs 3 IoCs

Winlogon Helper DLL

Modify Registry

Processes:

NoEscape.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\AutoAdminLogon = "0"	NoEscape.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\DisableCAD = "1"	NoEscape.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\AutoRestartShell = "0"	NoEscape.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

Defacement

Modify Registry

Processes:

NoEscape.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1361837696-2276465416-1936241636-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\noescape.png"	NoEscape.exe

Drops file in Windows directory 2 IoCs

Processes:

NoEscape.exe

description ioc process

File created C:\Windows\winnt32.exe NoEscape.exe
File opened for modification C:\Windows\winnt32.exe NoEscape.exe
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
discovery

System Language Discovery
T1614.001

Processes:

NoEscape.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language NoEscape.exe

Modifies Control Panel 4 IoCs

Processes:

NoEscape.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1361837696-2276465416-1936241636-1000\Control Panel\Mouse	NoEscape.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1361837696-2276465416-1936241636-1000\Control Panel\Mouse\SwapMouseButtons = "1"	NoEscape.exe
Key created	\REGISTRY\USER\S-1-5-21-1361837696-2276465416-1936241636-1000\Control Panel\Desktop	NoEscape.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1361837696-2276465416-1936241636-1000\Control Panel\Desktop\AutoColorization = "1"	NoEscape.exe

Modifies data under HKEY_USERS 15 IoCs

Processes:

LogonUI.exe

description	ioc	process
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\ColorizationBlurBalance = "1"	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 (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\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "98"	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\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\ColorizationColor = "3288365271"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

LogonUI.exe

pid process

3972 LogonUI.exe

System policy modification 1 TTPs 5 IoCs

Modify Registry

Processes:

NoEscape.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	NoEscape.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\shutdownwithoutlogon = "0"	NoEscape.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	NoEscape.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\UseDefaultTile = "1"	NoEscape.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	NoEscape.exe

C:\Users\Admin\AppData\Local\Temp\other malware cuz why not\NoEscape.exe
"C:\Users\Admin\AppData\Local\Temp\other malware cuz why not\NoEscape.exe"
1⤵
- Modifies WinLogon for persistence
- UAC bypass
- Disables RegEdit via registry modification
- Checks whether UAC is enabled
- Drops desktop.ini file(s)
- Modifies WinLogon
- Sets desktop wallpaper using registry
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies Control Panel
- System policy modification
PID:4740

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3a00855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:3972

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

Winlogon Helper DLL

Privilege Escalation

Abuse Elevation Control Mechanism

Bypass User Account Control

Boot or Logon Autostart Execution

Winlogon Helper DLL

Defense Evasion

Abuse Elevation Control Mechanism

Bypass User Account Control

Impair Defenses

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

System Location Discovery

System Language Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

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Downloads

C:\Users\Public\Desktop\⇴Ⲑቁᢓ᭦ỿ⒏∂៑ᙉٲ౭ ᇂࡁヤ

Filesize
666B

MD5
e49f0a8effa6380b4518a8064f6d240b

SHA1
ba62ffe370e186b7f980922067ac68613521bd51

SHA256
8dbd06e9585c5a16181256c9951dbc65621df66ceb22c8e3d2304477178bee13

SHA512
de6281a43a97702dd749a1b24f4c65bed49a2e2963cabeeb2a309031ab601f5ec488f48059c03ec3001363d085e8d2f0f046501edf19fafe7508d27e596117d4

Download Submit
memory/4740-0-0x0000000000400000-0x00000000005CC000-memory.dmp

Filesize
1.8MB

Download
memory/4740-1-0x00000000005C6000-0x00000000005C7000-memory.dmp

Filesize
4KB

Download
memory/4740-176-0x0000000000400000-0x00000000005CC000-memory.dmp

Filesize
1.8MB

Download