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General
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Target
2024-04-30_c9f6fc22d04c4d56622e9322d1a34d70_wannacry
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Size
1.1MB
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Sample
240430-x1bx5aga38
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MD5
c9f6fc22d04c4d56622e9322d1a34d70
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SHA1
d45ed6385e183456f1d0f68aba47727df1d38256
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SHA256
b7b3f9f8e59c42d40505a0e53039b69ba969b84b14d31a71557f5a09855b678a
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SHA512
f73342e15b3f1fb180f845950ed90f0fdc9c54f1040d457d78f2a13be445d65650dca455b254254db566e81b4c089539370edda3ef76a4c5bbc32ea7aaaa40e2
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SSDEEP
12288:o7YHBR9ideJWmXm+if5BYstvfCjqf2KqY5UBx2qIYvnv+pkiccfIzdLzsb4D7ZfL:ogBNq5u0v6AUjBfLyZEi
Behavioral task
behavioral1
Sample
2024-04-30_c9f6fc22d04c4d56622e9322d1a34d70_wannacry.exe
Resource
win10v2004-20240419-en
Malware Config
Extracted
C:\Users\Default\read_it.txt
https://coinflip.tech
Targets
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Target
2024-04-30_c9f6fc22d04c4d56622e9322d1a34d70_wannacry
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Size
1.1MB
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MD5
c9f6fc22d04c4d56622e9322d1a34d70
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SHA1
d45ed6385e183456f1d0f68aba47727df1d38256
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SHA256
b7b3f9f8e59c42d40505a0e53039b69ba969b84b14d31a71557f5a09855b678a
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SHA512
f73342e15b3f1fb180f845950ed90f0fdc9c54f1040d457d78f2a13be445d65650dca455b254254db566e81b4c089539370edda3ef76a4c5bbc32ea7aaaa40e2
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SSDEEP
12288:o7YHBR9ideJWmXm+if5BYstvfCjqf2KqY5UBx2qIYvnv+pkiccfIzdLzsb4D7ZfL:ogBNq5u0v6AUjBfLyZEi
Score10/10-
Chaos Ransomware
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Modifies visibility of file extensions in Explorer
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Modifies visiblity of hidden/system files in Explorer
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Modifies boot configuration data using bcdedit
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Renames multiple (223) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Disables Task Manager via registry modification
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Modifies Installed Components in the registry
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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Modifies system executable filetype association
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Registers COM server for autorun
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Adds Run key to start application
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Drops desktop.ini file(s)
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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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Checks system information in the registry
System information is often read in order to detect sandboxing environments.
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Drops file in System32 directory
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Sets desktop wallpaper using registry
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
3Event Triggered Execution
1Change Default File Association
1Privilege Escalation
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
3Event Triggered Execution
1Change Default File Association
1Defense Evasion
Hide Artifacts
2Hidden Files and Directories
2Indicator Removal
3File Deletion
3Modify Registry
7