General
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Target
Sigmanly_5f3ecd02a94cec2b62bfecd79f5a1d98
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Size
497KB
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Sample
250413-qcldbswmt8
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MD5
5f3ecd02a94cec2b62bfecd79f5a1d98
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SHA1
2cd65d6d0cb10b8d061ee33133f0f98f86917265
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SHA256
b55ecbddcbed916481ad537807cd3e33cb71814be6ce8e03eb63b629ccb8c692
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SHA512
254949d3932a915394dec0eca359291baa8963e0cab55d28af02c678ce9841a3dad9b2d28e911f51655d8a52cf7d7379b446c0a2917b6e083abf95a1aa68dfee
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SSDEEP
6144:rFoCbN9uRhQW8HnuYqWrJhN7L6aMFNYkS+D5gtuMf9opagj7T:IqnTp7N78Y5e5gUG9o/
Behavioral task
behavioral1
Sample
Sigmanly_5f3ecd02a94cec2b62bfecd79f5a1d98.exe
Resource
win10v2004-20250314-en
Malware Config
Targets
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Target
Sigmanly_5f3ecd02a94cec2b62bfecd79f5a1d98
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Size
497KB
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MD5
5f3ecd02a94cec2b62bfecd79f5a1d98
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SHA1
2cd65d6d0cb10b8d061ee33133f0f98f86917265
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SHA256
b55ecbddcbed916481ad537807cd3e33cb71814be6ce8e03eb63b629ccb8c692
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SHA512
254949d3932a915394dec0eca359291baa8963e0cab55d28af02c678ce9841a3dad9b2d28e911f51655d8a52cf7d7379b446c0a2917b6e083abf95a1aa68dfee
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SSDEEP
6144:rFoCbN9uRhQW8HnuYqWrJhN7L6aMFNYkS+D5gtuMf9opagj7T:IqnTp7N78Y5e5gUG9o/
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Detect Rhysida ransomware
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Rhysida family
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Clears Windows event logs
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (9711) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Credentials from Password Stores: Windows Credential Manager
Suspicious access to Credentials History.
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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.
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Indicator Removal: Clear Persistence
Clear artifacts associated with previously established persistence like scheduletasks on a host.
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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.
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Sets desktop wallpaper using registry
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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