General
- Target WindowsSecurityHealth.exe
- Size 89.0MB
- Sample261011-2ctv9aab32
- SHA256 8246d5bdc55b7a427c331d80dfc0521820a9fbc0f40e88e6d2e793a8c3f0370b
- MD5 ecb77adb023987d1419ae16d7cbe4540
- SHA1 cccf5353772ba5b5a7dc314703af3dbf95a6ca87
- SHA512 99b6ac4bef610cad3b0aff8345f49f945363d371d035dc67644b90861dcd9703a7b433fa2a1e6fec88fcdc1b7748a718115561c57d707a9ae4d465f9650b88f2
- SSDEEP 1572864:1w82K/apRojJiQ80bW+14vUglc9fOqaznJY3TVbUELCUvX2VaEses1zeEX8:1wJRvQ80kvUglcFSY3hQEGwN9N18
- TLSH T1E0183303F652C590C06A8D3489B6A7B5A920FC251A247B6B3954FB3ECEF1FC15729B07
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
WindowsSecurityHealth.exe
Resource
win10ltsc2021-20260911-en
Behavioral task
behavioral2
Sample
WindowsSecurityHealth.exe
Resource
win11ltsc2024-20260911-en
Malware Config
Targets
-
- Target WindowsSecurityHealth.exe
- Size 89.0MB
- SHA256 8246d5bdc55b7a427c331d80dfc0521820a9fbc0f40e88e6d2e793a8c3f0370b
- MD5 ecb77adb023987d1419ae16d7cbe4540
- SHA1 cccf5353772ba5b5a7dc314703af3dbf95a6ca87
- SHA512 99b6ac4bef610cad3b0aff8345f49f945363d371d035dc67644b90861dcd9703a7b433fa2a1e6fec88fcdc1b7748a718115561c57d707a9ae4d465f9650b88f2
- SSDEEP 1572864:1w82K/apRojJiQ80bW+14vUglc9fOqaznJY3TVbUELCUvX2VaEses1zeEX8:1wJRvQ80kvUglcFSY3hQEGwN9N18
- TLSH T1E0183303F652C590C06A8D3489B6A7B5A920FC251A247B6B3954FB3ECEF1FC15729B07
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Clears Windows event logs
-
Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
-
Renames multiple (2209) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Creates a file in the Startup directory
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
-
Credentials from Password Stores: Windows Credential Manager
Suspicious access to Credentials History.
-
Executes a file named after a Windows system binary
The file runs from a user directory while carrying the name of an executable that normally only exists in System32.
-
Executes dropped EXE
-
Adds Run key to start application
-
Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
-
Drops desktop.ini file(s)
-
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
-
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
-
Sets desktop wallpaper using registry
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1Windows Command Shell
1Windows Management Instrumentation
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Defense Evasion
Direct Volume Access
1Indicator Removal
3Clear Windows Event Logs
1File Deletion
2Masquerading
1Match Legitimate Name or Location
1Modify Registry
2Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1