Malware Analysis Report

2025-08-05 17:08

Sample ID 230331-vyn4kadc8y
Target NoEscape.zip
SHA256 47f6d3a11ffd015413ffb96432ec1f980fba5dd084990dd61a00342c5f6da7f8
Tags
evasion persistence ransomware trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

47f6d3a11ffd015413ffb96432ec1f980fba5dd084990dd61a00342c5f6da7f8

Threat Level: Known bad

The file NoEscape.zip was found to be: Known bad.

Malicious Activity Summary

evasion persistence ransomware trojan

Modifies WinLogon for persistence

UAC bypass

Disables RegEdit via registry modification

Drops desktop.ini file(s)

Checks whether UAC is enabled

Modifies WinLogon

Sets desktop wallpaper using registry

Drops file in Windows directory

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

System policy modification

Modifies data under HKEY_USERS

Modifies Control Panel

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-03-31 17:24

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-03-31 17:24

Reported

2023-03-31 17:28

Platform

win10v2004-20230220-en

Max time kernel

188s

Max time network

199s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NoEscape.exe"

Signatures

Modifies WinLogon for persistence

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\winnt32.exe" C:\Users\Admin\AppData\Local\Temp\NoEscape.exe N/A

UAC bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\NoEscape.exe N/A

Disables RegEdit via registry modification

evasion
Description Indicator Process Target
Set value (int) \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" C:\Users\Admin\AppData\Local\Temp\NoEscape.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\NoEscape.exe N/A

Drops desktop.ini file(s)

Description Indicator Process Target
File opened for modification C:\Users\Admin\Desktop\desktop.ini C:\Users\Admin\AppData\Local\Temp\NoEscape.exe N/A
File opened for modification C:\Users\Public\Desktop\desktop.ini C:\Users\Admin\AppData\Local\Temp\NoEscape.exe N/A

Modifies WinLogon

persistence
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\AutoRestartShell = "0" C:\Users\Admin\AppData\Local\Temp\NoEscape.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\AutoAdminLogon = "0" C:\Users\Admin\AppData\Local\Temp\NoEscape.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\DisableCAD = "1" C:\Users\Admin\AppData\Local\Temp\NoEscape.exe N/A

Sets desktop wallpaper using registry

ransomware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\noescape.png" C:\Users\Admin\AppData\Local\Temp\NoEscape.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\winnt32.exe C:\Users\Admin\AppData\Local\Temp\NoEscape.exe N/A
File opened for modification C:\Windows\winnt32.exe C:\Users\Admin\AppData\Local\Temp\NoEscape.exe N/A

Modifies Control Panel

evasion
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\Mouse C:\Users\Admin\AppData\Local\Temp\NoEscape.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\Mouse\SwapMouseButtons = "1" C:\Users\Admin\AppData\Local\Temp\NoEscape.exe N/A
Key created \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\Desktop C:\Users\Admin\AppData\Local\Temp\NoEscape.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\Desktop\AutoColorization = "1" C:\Users\Admin\AppData\Local\Temp\NoEscape.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10" C:\Windows\system32\LogonUI.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "218" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0" C:\Windows\system32\LogonUI.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271" C:\Windows\system32\LogonUI.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" C:\Windows\system32\LogonUI.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00 C:\Windows\system32\LogonUI.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\system32\LogonUI.exe N/A

System policy modification

evasion
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer C:\Users\Admin\AppData\Local\Temp\NoEscape.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\UseDefaultTile = "1" C:\Users\Admin\AppData\Local\Temp\NoEscape.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\NoEscape.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System C:\Users\Admin\AppData\Local\Temp\NoEscape.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\shutdownwithoutlogon = "0" C:\Users\Admin\AppData\Local\Temp\NoEscape.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\NoEscape.exe

"C:\Users\Admin\AppData\Local\Temp\NoEscape.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --default-search-provider=? --out-pipe-name=MSEdgeDefaultb03ba394h485dh4bd1hbb51h75438eace8cb

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x11c,0x120,0x124,0xf8,0x128,0x7ffb8efc46f8,0x7ffb8efc4708,0x7ffb8efc4718

C:\Windows\system32\LogonUI.exe

"LogonUI.exe" /flags:0x4 /state0:0xa39a5055 /state1:0x41c64e6d

Network

Country Destination Domain Proto
US 40.77.2.164:443 tcp
NL 173.223.113.164:443 tcp
US 8.8.8.8:53 164.2.77.40.in-addr.arpa udp
US 52.152.110.14:443 tcp
US 8.8.8.8:53 14.110.152.52.in-addr.arpa udp
SG 8.255.132.254:80 tcp
US 117.18.232.240:80 tcp
SG 8.241.133.254:80 tcp
US 204.79.197.200:443 tcp
NL 8.238.21.126:80 tcp
NL 20.50.201.200:443 tcp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
US 52.152.110.14:443 tcp
US 93.184.220.29:80 tcp
NL 8.238.21.126:80 tcp
NL 8.238.21.126:80 tcp
US 52.152.110.14:443 tcp
US 52.152.110.14:443 tcp
US 52.152.110.14:443 tcp
US 52.152.110.14:443 tcp
US 52.152.110.14:443 tcp
US 52.152.110.14:443 tcp
GB 96.16.110.41:443 tcp

Files

memory/4588-133-0x0000000000400000-0x00000000005CC000-memory.dmp

memory/4588-134-0x0000000000400000-0x00000000005CC000-memory.dmp

memory/4588-135-0x0000000000400000-0x00000000005CC000-memory.dmp

memory/4588-137-0x0000000000400000-0x00000000005CC000-memory.dmp

memory/4588-139-0x0000000000400000-0x00000000005CC000-memory.dmp

memory/4588-140-0x0000000000400000-0x00000000005CC000-memory.dmp

memory/4588-142-0x0000000000400000-0x00000000005CC000-memory.dmp

C:\Users\Public\Desktop\ቬㄜዊḡ٩ᚾྤↇ⭪ᛥ઄ṫ✧ᅲٞ⶧ਹ⓸ᙎヤବ

MD5 e49f0a8effa6380b4518a8064f6d240b
SHA1 ba62ffe370e186b7f980922067ac68613521bd51
SHA256 8dbd06e9585c5a16181256c9951dbc65621df66ceb22c8e3d2304477178bee13
SHA512 de6281a43a97702dd749a1b24f4c65bed49a2e2963cabeeb2a309031ab601f5ec488f48059c03ec3001363d085e8d2f0f046501edf19fafe7508d27e596117d4

memory/4588-320-0x0000000000400000-0x00000000005CC000-memory.dmp