General
- Target 2026-08-08_7d1f041599690eaa820fe3c5eae7e5b0_mespinoza
- Size 276KB
- Sample260808-nt5geswckd
- SHA256 ea81ddd86f4d32b66792828b14d110311e0bb44434fa829dfbd5b23d86a3ecc2
- MD5 7d1f041599690eaa820fe3c5eae7e5b0
- SHA1 c2221aee7522f89a5a5cdc650545853e00117eb4
- SHA512 3405e3bf8439049a3da3adbcefd6306cffc9ab443730c8c9cc4b6705487954d3094212e8dd7abbdcb0d476dc89d0e93d854f85cbb645762ff436cc5a4d380fec
- SSDEEP 6144:b4pus9N235/o4NkEfThgzzroVgvEb8SZ9Py1e3nnn:bYus9s35/tNbLhgroVg8p9Pygnn
- TLSH T152548C4E77A54CF2E5A38278CD659672F6B2B8A51E20CB0F1261C77F6F23560AC2C711
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
2026-08-08_7d1f041599690eaa820fe3c5eae7e5b0_mespinoza.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
2026-08-08_7d1f041599690eaa820fe3c5eae7e5b0_mespinoza.exe
Resource
win11ltsc2024-20260709-en
Malware Config
Targets
-
- Target 2026-08-08_7d1f041599690eaa820fe3c5eae7e5b0_mespinoza
- Size 276KB
- SHA256 ea81ddd86f4d32b66792828b14d110311e0bb44434fa829dfbd5b23d86a3ecc2
- MD5 7d1f041599690eaa820fe3c5eae7e5b0
- SHA1 c2221aee7522f89a5a5cdc650545853e00117eb4
- SHA512 3405e3bf8439049a3da3adbcefd6306cffc9ab443730c8c9cc4b6705487954d3094212e8dd7abbdcb0d476dc89d0e93d854f85cbb645762ff436cc5a4d380fec
- SSDEEP 6144:b4pus9N235/o4NkEfThgzzroVgvEb8SZ9Py1e3nnn:bYus9s35/tNbLhgroVg8p9Pygnn
- TLSH T152548C4E77A54CF2E5A38278CD659672F6B2B8A51E20CB0F1261C77F6F23560AC2C711
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Renames multiple (10707) 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