blackcat

General

Target

https://bazaar.abuse.ch/sample/731adcf2d7fb61a8335e23dbee2436249e5d5753977ec465754c6b699e9bf161/
Sample

230505-llejxshc47

Score

10^/10

Malware Config

Extracted

Family

blackcat

Credentials

Username:
CREDITONE\Administrator
Password:
K3ny@2009

Username:
CREDITONE\bexec
Password:
CloneD1sk4Song$%

Username:
CREDITONE\KLarry
Password:
Kl..2021

Username:
CREDITONE\BKuhl
Password:
Gromit2021!

Username:
CREDITONE\rlopez
Password:
Victoria7856!

Username:
CREDITONE\EJaramilla
Password:
1LoveVeros4

Username:
.\Administrator
Password:
$fiji12$

Attributes

enable_network_discovery
true
enable_self_propagation
true
enable_set_wallpaper
true
extension
7954i9r
note_file_name
RECOVER-${EXTENSION}-FILES.txt
note_full_text
>> Introduction Important files on your system was ENCRYPTED and now they have have "${EXTENSION}" extension. In order to recover your files you need to follow instructions below. >> Sensitive Data Sensitive data on your system was DOWNLOADED and it will be PUBLISHED if you refuse to cooperate. Data includes: - Employees personal data, CVs, DL, SSN. - Complete network map including credentials for local and remote services. - Financial information including clients data, bills, budgets, annual reports, bank statements. - Complete datagrams/schemas/drawings for manufacturing in solidworks format - And more... Private preview is published here: http://alphvmmm27o3abo3r2mlmjrpdmzle3rykajqc5xsj7j7ejksbpsa36ad.onion/336eb50d-ebf8-436b-937d-ec075de46e7f/419ef3f950d9f346cf86db56db453539dcd51567ea871728e78dbc9918c7efeb >> CAUTION DO NOT MODIFY FILES YOURSELF. DO NOT USE THIRD PARTY SOFTWARE TO RESTORE YOUR DATA. YOU MAY DAMAGE YOUR FILES, IT WILL RESULT IN PERMANENT DATA LOSS. YOUR DATA IS STRONGLY ENCRYPTED, YOU CAN NOT DECRYPT IT WITHOUT CIPHER KEY. >> Recovery procedure Follow these simple steps to get in touch and recover your data: 1) Download and install Tor Browser from: https://torproject.org/ 2) Navigate to: http://sty5r4hhb5oihbq2mwevrofdiqbgesi66rvxr5sr573xgvtuvr4cs5yd.onion/?access-key=${ACCESS_KEY}

rsa_pubkey.plain

Targets

- Target
  
  https://bazaar.abuse.ch/sample/731adcf2d7fb61a8335e23dbee2436249e5d5753977ec465754c6b699e9bf161/
Score

10^/10

blackcat discovery persistence ransomware
- BlackCat
  A Rust-based ransomware sold as RaaS first seen in late 2021.
  ransomware blackcat
- Downloads MZ/PE file
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE
- Loads dropped DLL
- Modifies system executable filetype association
  persistence
- Registers COM server for autorun
  persistence
- Adds Run key to start application
  persistence
- Checks installed software on the system
  Looks up Uninstall key entries in the registry to enumerate software on the system.
  discovery
- Drops Chrome extension
behavioral1