General
- Target 1a9c27e5be8c58da1c02fc4245a07831d5d431cdd1a91cd35d2dd0ad62da71cd.exe
- Size 422KB
- Sample250412-q42vdswks9
- SHA256 1a9c27e5be8c58da1c02fc4245a07831d5d431cdd1a91cd35d2dd0ad62da71cd
- MD5 4ef0160b3eb114a94aeedd0bb5716058
- SHA1 10cb9fa20dec34fa7ceab8248a0deef8ecb7bcef
- SHA512 86f4ac8d77a1d50b4ebc74e1992f9487ff1abb3b4e275f0e7a5355b1111f967d0f74958cf5b8dc673da2d384e5944e60deae7005a1b5f0c4dfdd3aa45cfe2b89
- SSDEEP 6144:izOLumbr+/LRsL5whr2FaSSJmo7zYrMFFMk3nwH8nTNFT:iUCaJo7tMowHI
- MD5 SHA1 SHA512 SSDEEP
Behavioral task
behavioral1
Sample
1a9c27e5be8c58da1c02fc4245a07831d5d431cdd1a91cd35d2dd0ad62da71cd.exe
Resource
win10v2004-20250410-en
Malware Config
Targets
-
- Target 1a9c27e5be8c58da1c02fc4245a07831d5d431cdd1a91cd35d2dd0ad62da71cd.exe
- Size 422KB
- SHA256 1a9c27e5be8c58da1c02fc4245a07831d5d431cdd1a91cd35d2dd0ad62da71cd
- MD5 4ef0160b3eb114a94aeedd0bb5716058
- SHA1 10cb9fa20dec34fa7ceab8248a0deef8ecb7bcef
- SHA512 86f4ac8d77a1d50b4ebc74e1992f9487ff1abb3b4e275f0e7a5355b1111f967d0f74958cf5b8dc673da2d384e5944e60deae7005a1b5f0c4dfdd3aa45cfe2b89
- SSDEEP 6144:izOLumbr+/LRsL5whr2FaSSJmo7zYrMFFMk3nwH8nTNFT:iUCaJo7tMowHI
- MD5 SHA1 SHA512 SSDEEP
-
Detect Rhysida ransomware
-
Rhysida family
-
Clears Windows event logs
-
Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
-
Renames multiple (9659) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Credentials from Password Stores: Windows Credential Manager
Suspicious access to Credentials History.
-
Drops startup file
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Hide Artifacts: Hidden Window
Windows that would typically be displayed when an application carries out an operation can be hidden.
-
Indicator Removal: Clear Persistence
Clear artifacts associated with previously established persistence like scheduletasks on a host.
-
Power Settings
powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.
-
Sets desktop wallpaper using registry
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1PowerShell
1Windows Management Instrumentation
1Defense Evasion
Direct Volume Access
1Hide Artifacts
1Hidden Window
1Indicator Removal
4Clear Persistence
1Clear Windows Event Logs
1File Deletion
2Modify Registry
1Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1