Analysis
- max time kernel
110s - max time network
98s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system - submitted
30/12/2023, 16:08
Behavioral task
behavioral1
Sample
3c8ad2dae0b1bb536925b4e8d5a87e77c6134371eada2c7628358d6c6d3083dc.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
3c8ad2dae0b1bb536925b4e8d5a87e77c6134371eada2c7628358d6c6d3083dc.exe
Resource
win10v2004-20231222-en
General
- Target 3c8ad2dae0b1bb536925b4e8d5a87e77c6134371eada2c7628358d6c6d3083dc.exe
- Size 2.9MB
- Sample231230-tk8elscfa7
- SHA256 3c8ad2dae0b1bb536925b4e8d5a87e77c6134371eada2c7628358d6c6d3083dc
- MD5 5178bd507c07bc2d5274e0947834e48e
- SHA1 dd69b20eb1931487d8b65060f2be3671bd5baf33
- SHA512 4db7e98aaaf177fab9faa12f7ae9ee9415ef81fc0b0b31eb47b14fbf04ed899c32df70b984d0b6b2acf43e3a62d9c48624fe2ad86eccc5d0cb1015fc65983341
- SSDEEP 49152:HFyDutqkpj1TFUoXhjEjHjTu5tCeOZobIMfutoqKNi/RgaJ2weF:HFyDkNLXVEbjTuieOaR2+6vwweF
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
-
blackcat
-
enable_network_discovery
true
-
enable_self_propagation
true
-
enable_set_wallpaper
true
-
extension
cvz8n37
-
note_file_name
RECOVER-${EXTENSION}-FILES.txt
-
note_full_text
>> What happened? Important files on your network was ENCRYPTED and now they have "${EXTENSION}" extension. In order to recover your files you need to follow instructions below. >> Sensitive Data Sensitive data on your network was DOWNLOADED. If you DON'T WANT your sensitive data to be PUBLISHED you have to act quickly. Data includes: - Employees personal data, CVs, DL, SSN. - Complete network map including credentials for local and remote services. - Private financial information including: clients data, bills, budgets, annual reports, bank statements. - Manufacturing documents including: datagrams, schemas, drawings in solidworks format - And more... >> CAUTION DO NOT MODIFY ENCRYPTED FILES YOURSELF. DO NOT USE THIRD PARTY SOFTWARE TO RESTORE YOUR DATA. YOU MAY DAMAGE YOUR FILES, IT WILL RESULT IN PERMANENT DATA LOSS. >> What should I do next? 1) Download and install Tor Browser from: https://torproject.org/ 2) Navigate to: http://gbxbwicx3x35kn7n73opnpp4kkzjcra42iv2akoo2dcjinf6jf6qbuyd.onion/?access-key=${ACCESS_KEY}
Signatures
- BlackCat
A Rust-based ransomware sold as RaaS first seen in late 2021.