Analysis
- max time kernel
285s - max time network
287s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
07/01/2024, 11:13
General
- Target ecea6b772742758a2240898ef772ca11aa9d870aec711cffab8994c23044117c.exe
- Size 2.9MB
- Sample240107-nbw3bsbfbp
- SHA256 ecea6b772742758a2240898ef772ca11aa9d870aec711cffab8994c23044117c
Malware Config
Extracted
-
blackcat
-
enable_network_discovery
true
-
enable_self_propagation
true
-
enable_set_wallpaper
true
-
extension
kh1ftzx
-
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 system 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? Follow these simple steps to get everything back to normal: 1) Download and install Tor Browser from: https://torproject.org/ 2) Navigate to: http://rfosusl6qdm4zhoqbqnjxaloprld2qz35u77h4aap46rhwkouejsooqd.onion/?access-key=${ACCESS_KEY}
Signatures
- BlackCat
A Rust-based ransomware sold as RaaS first seen in late 2021.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ecea6b772742758a2240898ef772ca11aa9d870aec711cffab8994c23044117c.exe"C:\Users\Admin\AppData\Local\Temp\ecea6b772742758a2240898ef772ca11aa9d870aec711cffab8994c23044117c.exe"1⤵
-
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe1⤵
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k UnistackSvcGroup1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
memory/1508-0-0x0000000000400000-0x00000000006F6000-memory.dmp
memory/3636-1-0x0000023A56C40000-0x0000023A56C50000-memory.dmp
memory/3636-17-0x0000023A56D40000-0x0000023A56D50000-memory.dmp
memory/3636-33-0x0000023A5F320000-0x0000023A5F321000-memory.dmp
memory/3636-34-0x0000023A5F350000-0x0000023A5F351000-memory.dmp
memory/3636-35-0x0000023A5F350000-0x0000023A5F351000-memory.dmp
memory/3636-36-0x0000023A5F350000-0x0000023A5F351000-memory.dmp
memory/3636-37-0x0000023A5F350000-0x0000023A5F351000-memory.dmp
memory/3636-38-0x0000023A5F350000-0x0000023A5F351000-memory.dmp
memory/3636-39-0x0000023A5F350000-0x0000023A5F351000-memory.dmp
memory/3636-40-0x0000023A5F350000-0x0000023A5F351000-memory.dmp
memory/3636-41-0x0000023A5F350000-0x0000023A5F351000-memory.dmp
memory/3636-42-0x0000023A5F350000-0x0000023A5F351000-memory.dmp
memory/3636-43-0x0000023A5F350000-0x0000023A5F351000-memory.dmp
memory/3636-44-0x0000023A5EF70000-0x0000023A5EF71000-memory.dmp
memory/3636-45-0x0000023A5EF60000-0x0000023A5EF61000-memory.dmp
memory/3636-47-0x0000023A5EF70000-0x0000023A5EF71000-memory.dmp
memory/3636-50-0x0000023A5EF60000-0x0000023A5EF61000-memory.dmp
memory/3636-53-0x0000023A5EEA0000-0x0000023A5EEA1000-memory.dmp
memory/3636-65-0x0000023A5F0A0000-0x0000023A5F0A1000-memory.dmp
memory/3636-67-0x0000023A5F0B0000-0x0000023A5F0B1000-memory.dmp
memory/3636-68-0x0000023A5F0B0000-0x0000023A5F0B1000-memory.dmp
memory/3636-69-0x0000023A5F1C0000-0x0000023A5F1C1000-memory.dmp