General
- Target 2026-08-08_43a3218a5b46ff551d3142ce9b37cbe0_mespinoza
- Size 276KB
- Sample260808-tqg5lsed37
- SHA256 01b75dcbeca4a081748f770ad67f6798834525e77962a9d001ae56a19d86c5f5
- MD5 43a3218a5b46ff551d3142ce9b37cbe0
- SHA1 e046eddd21248c231d926976dc15c73e9113ba68
- SHA512 97a168de59b0b07d6290680a1b1045e82cb80d0827dc1ad2cda12342229ad484f2eed155801c5b67c23e33c8e1f01196774aa0f63421f6fc6f2e801360719f84
- SSDEEP 6144:i99Gs9a2e3/HlNiEfcxgPC+oxkvEb8SZ9P+W+agqrzj:irGs9Te3/FNtExg9oxk8p9P+ggqfj
- TLSH T1BA548C4E77A54CF2E5A38278CD519672E7B2B8A51E20C70F12A1C77F6F235A0AD2C311
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
2026-08-08_43a3218a5b46ff551d3142ce9b37cbe0_mespinoza.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
2026-08-08_43a3218a5b46ff551d3142ce9b37cbe0_mespinoza.exe
Resource
win11ltsc2024-20260709-en
Malware Config
Targets
-
- Target 2026-08-08_43a3218a5b46ff551d3142ce9b37cbe0_mespinoza
- Size 276KB
- SHA256 01b75dcbeca4a081748f770ad67f6798834525e77962a9d001ae56a19d86c5f5
- MD5 43a3218a5b46ff551d3142ce9b37cbe0
- SHA1 e046eddd21248c231d926976dc15c73e9113ba68
- SHA512 97a168de59b0b07d6290680a1b1045e82cb80d0827dc1ad2cda12342229ad484f2eed155801c5b67c23e33c8e1f01196774aa0f63421f6fc6f2e801360719f84
- SSDEEP 6144:i99Gs9a2e3/HlNiEfcxgPC+oxkvEb8SZ9P+W+agqrzj:irGs9Te3/FNtExg9oxk8p9P+ggqfj
- TLSH T1BA548C4E77A54CF2E5A38278CD519672E7B2B8A51E20C70F12A1C77F6F235A0AD2C311
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Renames multiple (12799) 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