General
- Target Ransomware.YggGuru.zip
- Size 1.9MB
- Sample260620-r5prwsfv8p
- SHA256 f42eff5341ca6c6a9ecfc24e68caea79d66c6b7709263c9cff86e48ec4604034
- MD5 01c98f53cc36738945bd2de8e73cfad6
- SHA1 10d26cd61b49b3ec0fedc7a7d8c0f476613418a1
- SHA512 170126aa3f7e958f4a3afd07647ee457f25554907009c517bb7fef368ffbc12d752697dfb580d6fab3e8d967a901e547698a1673f6287fb5d4ca28793b83c571
- SSDEEP 49152:pAZs+jJzbJNeN37qc/5jVhQLrvEbKbvb51w/uha+tUWAJ:GrjJfeh7l/5jULrMqvXY0aie
- TLSH T1689533D01210EFE862DCA3827AA64F42E9CC40F6F4EC7D38E395EB16814974498E95F7
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
Users/anthony/ioc/update.exe
Resource
win10ltsc2021-20260513-en
20 signatures
150 seconds
Malware Config
Extracted
Path
-
C:\Users\Admin\Documents\README_RESTORE.txt
Ransom Note
- =============================================================== ALL YOUR FILES HAVE BEEN ENCRYPTED =============================================================== What happened? Your important files have been encrypted using military-grade AES-256-GCM encryption. You will not be able to recover them without our private decryption key. 0 file(s) have been affected. How to recover? To get the decryption tool, you must pay 0.5 BTC to: bc1q9x4m27d3kge0f8v5td0w4rjhkfz5a5nqpfsghr After payment, send your machine ID and transaction proof to: [email protected] You will receive the decryption tool within 24 hours. WARNING: - Do NOT rename or modify encrypted files - Do NOT use third-party decryption software - Do NOT contact law enforcement (they cannot help you) - Payment increases to 1 BTC after 72 hours Your machine ID: Vcgdloyn ===============================================================
Emails
Targets
-
- Target Users/anthony/ioc/update.exe
- Size 1.8MB
- SHA256 c3b71a279800e79535b096b110c9cf27ff16b92cf0a18200dd777a9abae9a5e7
- MD5 b61d829b6b1fc2ecc12a86db5d99d826
- SHA1 2485276a4bed442d34f2b10ea0181c5152f95616
- SHA512 ebc6f21faddee91223c15f3718cf1bfd2bf46b741f4f1be571d8f850ae8740c592a181e1e1da274ea9198311b6e6dad6cbcde8c2ea208bff8530b18a1c77cfec
- SSDEEP 49152:Lm1UlgE++JhVsnnZHTPrjDMiyR6RtW8fUBCWygMGjn:q1UFVsntjDHyR6RtLUwWzR7
- TLSH T1D39533B5A324281FDDC98639988CC5389E4A6007DF47F5913B6D832D4CCCE794669EBC
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
-
Modifies boot configuration data using bcdedit
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Disables Task Manager via registry modification
-
Adds Run key to start application
MITRE ATT&CK Enterprise v16
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Direct Volume Access
1Indicator Removal
3File Deletion
3Modify Registry
2