General
- Target 2026-08-05_38359546360353694072ff3ef39b9b66_mespinoza
- Size 276KB
- Sample260805-rlrr5stybv
- SHA256 a916245269178964e69ec80ba85836cbf797cc02f405db13e32ff24c265525e9
- MD5 38359546360353694072ff3ef39b9b66
- SHA1 e27339c624f2be3d84cc6c10780c898090ad9e49
- SHA512 b99e075b1ad99b8732a3d47e4651d7f5fd473e5f03d242b6a15b7e6ab2d52c249241cbbe3b65aec034c7c9a7fb20f1b8d6b3e7ef1ce6d8a3aacb8098a418dfe7
- SSDEEP 6144:MsRYs9O2ul/qTNBEffmgkQjozAvEb8SZ9P4X7X5m5G:MoYs9nul/MNCHmgPozA8p9P4rXYo
- TLSH T161549D4E77A54CF2D5A38278CD519672F7B2B8A51E20CB0F12A1C76F6F23560AD2C711
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
2026-08-05_38359546360353694072ff3ef39b9b66_mespinoza.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
2026-08-05_38359546360353694072ff3ef39b9b66_mespinoza.exe
Resource
win11ltsc2024-20260709-en
Malware Config
Targets
-
- Target 2026-08-05_38359546360353694072ff3ef39b9b66_mespinoza
- Size 276KB
- SHA256 a916245269178964e69ec80ba85836cbf797cc02f405db13e32ff24c265525e9
- MD5 38359546360353694072ff3ef39b9b66
- SHA1 e27339c624f2be3d84cc6c10780c898090ad9e49
- SHA512 b99e075b1ad99b8732a3d47e4651d7f5fd473e5f03d242b6a15b7e6ab2d52c249241cbbe3b65aec034c7c9a7fb20f1b8d6b3e7ef1ce6d8a3aacb8098a418dfe7
- SSDEEP 6144:MsRYs9O2ul/qTNBEffmgkQjozAvEb8SZ9P4X7X5m5G:MoYs9nul/MNCHmgPozA8p9P4rXYo
- TLSH T161549D4E77A54CF2D5A38278CD519672F7B2B8A51E20CB0F12A1C76F6F23560AD2C711
- MD5 SHA1 SHA512 SSDEEP TLSH
Renames multiple (11278) 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