nefilim | 265bd3a207eb7dd52c22aa23ddfd14527ed7044b8de18fe0e5869e8326fec4d9

General

Target

fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
Size

3.3MB
MD5

68bb371accb1bc914675c0ab626a9019
SHA1

802a5fc4f1fdfae4a8cf99a4544c191641f9bceb
SHA256

fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7
SHA512

d72af358decda2f2caf1a7f1f6d83d457e0c6156753362a9ae1d3118dbb7706acff019be160028045ca2d22281fae4abf0ffdb6f27680cade0ade634e42bf84f

Score

10^/10

nefilim ransomware

Malware Config

Extracted

Path

C:\$Recycle.Bin\NEFILIM-HELP.txt

Ransom Note

Two things have happened to your company. ========================================================================================================================== Gigabytes of archived files that we deemed valuable or sensitive were downloaded from your network to a secure location. When you contact us we will tell you how much data was downloaded and can provide extensive proof of the data extraction. You can analyze the type of the data we download on our websites. If you do not contact us we will start leaking the data periodically in parts. ========================================================================================================================== We have also encrypted files on your computers with military grade algorithms. If you don't have extensive backups the only way to retrieve your data is with our software. Restoration of your data with our software requires a private key which only we possess. ========================================================================================================================== To confirm that our decryption software works send 2 encrypted files from random computers to us via email. You will receive further instructions after you send us the test files. We will make sure you retrieve your data swiftly and securely and your data that we downloaded will be securely deleted when our demands are met. If we do not come to an agreement your data will be leaked on this website. Website: http://corpleaks.net TOR link: http://hxt254aygrsziejn.onion Mail list: [email protected] [email protected] [email protected]

Emails

[email protected]

URLs

http://corpleaks.net

http://hxt254aygrsziejn.onion

Signatures

Nefilim
Ransomware first seen in early 2020 which shares code with the Nemty family. Rewritten in Golang in July 2020.
ransomware nefilim

Modifies extensions of user files 3 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\ConvertConnect.tiff	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File renamed	C:\Users\Admin\Pictures\ConvertConnect.tiff => C:\Users\Admin\Pictures\ConvertConnect.tiff.NEFILIM	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File renamed	C:\Users\Admin\Pictures\FormatRemove.png => C:\Users\Admin\Pictures\FormatRemove.png.NEFILIM	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe

Drops desktop.ini file(s) 25 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Admin\OneDrive\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\$Recycle.Bin\S-1-5-21-3686645723-710336880-414668232-1000\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Public\Downloads\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Public\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Public\AccountPictures\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Public\Libraries\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe

C:\Users\Admin\AppData\Local\Temp\fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe
"C:\Users\Admin\AppData\Local\Temp\fb3f622cf5557364a0a3abacc3e9acf399b3631bf3630acb8132514c486751e7.exe"
1⤵
- Modifies extensions of user files
- Drops desktop.ini file(s)
PID:3920

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads