General
- Target 2026-08-07_1283d81ee9bf30040a19454aa4f29f2f_mespinoza
- Size 775KB
- Sample260807-t2a6fasvas
- SHA256 997e6c716e065095a8b3f6a4efbff8dffa6945897e129b1a8fdb0a1918cd1a22
- MD5 1283d81ee9bf30040a19454aa4f29f2f
- SHA1 80bf75393fb73deb62eabf26e96d457f9be505ba
- SHA512 06cbabec46b0c2586d5a9e0cef5d4b760f0321ed67a2baa8160bd3debf5b0d57ca765bfc680cf88213a8547c1ca70437b07391793d8f4bb1c6ae556b19e99a90
- SSDEEP 6144:uCGs9aT2fsnc91Vr97MKNRneNMToeGY4+Zk:uLs9Mtc/Tcp
- TLSH T1B1F4503375A91848FD0E2DF48581B234F321ACAF3E4F7A8ADC48760E99776D23C59166
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
2026-08-07_1283d81ee9bf30040a19454aa4f29f2f_mespinoza.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
2026-08-07_1283d81ee9bf30040a19454aa4f29f2f_mespinoza.exe
Resource
win11ltsc2024-20260709-en
Malware Config
Targets
-
- Target 2026-08-07_1283d81ee9bf30040a19454aa4f29f2f_mespinoza
- Size 775KB
- SHA256 997e6c716e065095a8b3f6a4efbff8dffa6945897e129b1a8fdb0a1918cd1a22
- MD5 1283d81ee9bf30040a19454aa4f29f2f
- SHA1 80bf75393fb73deb62eabf26e96d457f9be505ba
- SHA512 06cbabec46b0c2586d5a9e0cef5d4b760f0321ed67a2baa8160bd3debf5b0d57ca765bfc680cf88213a8547c1ca70437b07391793d8f4bb1c6ae556b19e99a90
- SSDEEP 6144:uCGs9aT2fsnc91Vr97MKNRneNMToeGY4+Zk:uLs9Mtc/Tcp
- TLSH T1B1F4503375A91848FD0E2DF48581B234F321ACAF3E4F7A8ADC48760E99776D23C59166
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Renames multiple (11970) 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