Analysis
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max time kernel
16s -
max time network
25s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
12-06-2021 22:54
Static task
static1
Behavioral task
behavioral1
Sample
fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe
Resource
win10v20210410
General
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Target
fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe
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Size
3.3MB
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MD5
68bb371accb1bc914675c0ab626a9019
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SHA1
802a5fc4f1fdfae4a8cf99a4544c191641f9bceb
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SHA256
fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7
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SHA512
d72af358decda2f2caf1a7f1f6d83d457e0c6156753362a9ae1d3118dbb7706acff019be160028045ca2d22281fae4abf0ffdb6f27680cade0ade634e42bf84f
Malware Config
Extracted
C:\$Recycle.Bin\NEFILIM-HELP.txt
http://corpleaks.net
http://hxt254aygrsziejn.onion
Signatures
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Nefilim
Ransomware first seen in early 2020 which shares code with the Nemty family. Rewritten in Golang in July 2020.
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Modifies extensions of user files 5 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exedescription ioc Process File renamed C:\Users\Admin\Pictures\BackupDisconnect.raw => C:\Users\Admin\Pictures\BackupDisconnect.raw.NEFILIM fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File renamed C:\Users\Admin\Pictures\OptimizeMerge.crw => C:\Users\Admin\Pictures\OptimizeMerge.crw.NEFILIM fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Admin\Pictures\RemoveResolve.tiff fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File renamed C:\Users\Admin\Pictures\RemoveResolve.tiff => C:\Users\Admin\Pictures\RemoveResolve.tiff.NEFILIM fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File renamed C:\Users\Admin\Pictures\RenamePublish.png => C:\Users\Admin\Pictures\RenamePublish.png.NEFILIM fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe -
Drops desktop.ini file(s) 27 IoCs
Processes:
fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exedescription ioc Process File opened for modification C:\Users\Admin\Favorites\Links for United States\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Admin\Links\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Public\Downloads\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Public\Music\Sample Music\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Public\Music\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Public\Recorded TV\Sample Media\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Public\Videos\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Public\Desktop\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Public\Recorded TV\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Admin\Searches\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Admin\Music\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Public\Libraries\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Public\Videos\Sample Videos\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Public\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Admin\Documents\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Admin\Videos\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Public\Documents\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Public\Pictures\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\$Recycle.Bin\S-1-5-21-2455352368-1077083310-2879168483-1000\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.bin.exe
Processes
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
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MD5
53c5929e3e50b4d25cfa3cf25e673a87
SHA1dbb4319effa8f03925ee4c1c36a3c5e6fac7b5ec
SHA25600c37fdab8b65a92c65bafb3bb73bed08a89d4314bc2af1bedaf70dc4290ddba
SHA5120f5963fe48d85ed825a73c032748327c52ba5e7fde5d29a64ba7ac350fe7f5799278eab2e6cbadc748a84e92ca3805911c075d415835d0f42197feebd125a2c3