General
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Target
5secshuffle.py
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Size
6KB
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Sample
250113-cbwwsazmgt
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MD5
f0625f71f66f011f8251f180407017d3
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SHA1
85834cd6484705f147c32e55e67c2b9cde824323
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SHA256
c29bc7ab31b2c17e5b4ba1734abcfdff97fd1e5ecf078f6d42eb0a083f3cfc6e
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SHA512
ba8c23559bb9cc8be914d9a69d242f55a06a692313c2f88cba4154f1cd8af03be9fac82172e7703cebff18e632bb6c77f2e3efc32fbb8e5f48aad73f1b02dbe7
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SSDEEP
192:JAmEW9Qfl53LDwrfDI3mxUEWw86SDeKd4C8ik6iJN73FJ4Avklatn:JAmEsQfl53LDwMmxUEWw86SDeKd4C8iq
Static task
static1
Behavioral task
behavioral1
Sample
5secshuffle.py
Resource
win10ltsc2021-20241211-en
Malware Config
Extracted
C:\$Recycle.Bin\S-1-5-21-3506525125-3566313221-3651816328-1000\FHBYN-MANUAL.txt
gandcrab
http://gandcrabmfe6mnef.onion/874bd514a789dae0
Extracted
C:\g1rFryAhrVg2xrt\DECRYPT_YOUR_FILES.HTML
Targets
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Target
5secshuffle.py
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Size
6KB
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MD5
f0625f71f66f011f8251f180407017d3
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SHA1
85834cd6484705f147c32e55e67c2b9cde824323
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SHA256
c29bc7ab31b2c17e5b4ba1734abcfdff97fd1e5ecf078f6d42eb0a083f3cfc6e
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SHA512
ba8c23559bb9cc8be914d9a69d242f55a06a692313c2f88cba4154f1cd8af03be9fac82172e7703cebff18e632bb6c77f2e3efc32fbb8e5f48aad73f1b02dbe7
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SSDEEP
192:JAmEW9Qfl53LDwrfDI3mxUEWw86SDeKd4C8ik6iJN73FJ4Avklatn:JAmEsQfl53LDwMmxUEWw86SDeKd4C8iq
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BadRabbit
Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.
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Badrabbit family
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Cryptolocker family
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Gandcrab family
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Mimikatz family
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Modifies WinLogon for persistence
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (449) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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mimikatz is an open source tool to dump credentials on Windows
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Contacts a large (1157) amount of remote hosts
This may indicate a network scan to discover remotely running services.
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Disables RegEdit via registry modification
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Disables Task Manager via registry modification
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Modifies Windows Firewall
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Sets service image path in registry
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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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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Executes dropped EXE
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Impair Defenses: Safe Mode Boot
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Loads dropped DLL
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Adds Run key to start application
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Modifies WinLogon
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Sets desktop wallpaper using registry
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MITRE ATT&CK Enterprise v15
Execution
Scheduled Task/Job
1Scheduled Task
1Windows Management Instrumentation
1Persistence
Boot or Logon Autostart Execution
4Registry Run Keys / Startup Folder
2Winlogon Helper DLL
2Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
4Registry Run Keys / Startup Folder
2Winlogon Helper DLL
2Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Direct Volume Access
1Impair Defenses
2Disable or Modify System Firewall
1Safe Mode Boot
1Indicator Removal
2File Deletion
2Modify Registry
8Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1