Any files that are encrypted with LockBit 3.0 (Black) / CriptomanGizmo ransomware (used by affiliate or non-LockBit affiliates after its builder was leaked) will have a random 9 character alpha-numerical extension appended to the end of the encrypted data filename and typically will leave files (ransom notes) which include the same [random 9 character].README.txt as part of its name as explained here by Amigo-A (Andrew Ivanov). These are some examples.
.hZiV1YwzR
.3WbzmF0CC
.JxxLLpPns
hZiV1YwzR.README.txt
3WbzmF0CC.README.txt
JxxLLpPns.README.txt
The random 9 char naming format of your README.txt ransom note and contents together with the same random 9 alpha-numerical char extension appended to your encrypted files are similar to what we have seen with this ransomware. In your case.
.igZ5WiJ3z
igZ5WiJ3z.README.txt
Some LockBit 3 Black/CriptomanGizmo ransom notes are known to include a long string of hexadecimal characters comprising a Decryption ID similar to N3ww4v3/Mimic but without an asterisk (*) and extension after the ID numbers.
Your personal DECRYPTION ID: 495927C9CC58D8A36B47827EAE1AEA72
»» Your personal DECRYPTION ID: 9FE85D4F9C7EA210F904E9BC55F74ECA
>>>> Your personal DECRYPTION ID: 8F2AC6FD69FFFB2BEF710F5010CA2763
specify your ID - 6800F4848694EC5B39B3525AF9F34521
report your ID - C7EC9516C90F63DF285
YOU LOCK-ID: 7565BD6495000673051C5B6F24EE1B30
Your ransom note contents are similar to what we have seen with this ransomware and includes a personal Decryption ID like those listed above.
>>>> Your personal DECRYPTION ID: FD529**********************************
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Thanks
The BC Staff