General
- Target 2026-08-21_98f749743d201768b3d6dd684beb07f4_mespinoza
- Size 1.3MB
- Sample260822-lwz9datajb
- SHA256 6735150bbb9caede2d58648ac8df2fc76c8c84285f30b8cbceaefe980849fbc7
- MD5 98f749743d201768b3d6dd684beb07f4
- SHA1 e37bed9d0c8d60c216eca254a026c213f62d67a8
- SHA512 5080efe5d51da4dac8d7b52252a022f5561e169cd1f5274c09a8be29926734c49b73ac28953e9d61d58fc151676fffd14b4dd4aa899c2e04d82a75a8eb9ec4eb
- SSDEEP 12288:HlWaU/GnS3Hws9z49vaCOENjld5lVvYRMFlvZeo+Btwr:QGn+4ND/5lkoZeo6wr
- TLSH T1C455C541B6A80895FCAE9D7489668675FA32BD9F3D2DB30F1C50B22F1E338D05E25721
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
2026-08-21_98f749743d201768b3d6dd684beb07f4_mespinoza.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
2026-08-21_98f749743d201768b3d6dd684beb07f4_mespinoza.exe
Resource
win11ltsc2024-20260709-en
Malware Config
Targets
-
- Target 2026-08-21_98f749743d201768b3d6dd684beb07f4_mespinoza
- Size 1.3MB
- SHA256 6735150bbb9caede2d58648ac8df2fc76c8c84285f30b8cbceaefe980849fbc7
- MD5 98f749743d201768b3d6dd684beb07f4
- SHA1 e37bed9d0c8d60c216eca254a026c213f62d67a8
- SHA512 5080efe5d51da4dac8d7b52252a022f5561e169cd1f5274c09a8be29926734c49b73ac28953e9d61d58fc151676fffd14b4dd4aa899c2e04d82a75a8eb9ec4eb
- SSDEEP 12288:HlWaU/GnS3Hws9z49vaCOENjld5lVvYRMFlvZeo+Btwr:QGn+4ND/5lkoZeo6wr
- TLSH T1C455C541B6A80895FCAE9D7489668675FA32BD9F3D2DB30F1C50B22F1E338D05E25721
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Renames multiple (10499) 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 dropped EXE
-
Adds Run key to start application
-
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
MITRE ATT&CK Enterprise v16
Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1