ctblocker | 995944ed13ab4ff7f88fa268bb0c29b23ff762f4329730fd056dcac5e27f9d22

General

Target

f24e6374518fa7aed3d24a064a03bd23
Size

654KB
Sample

231222-t12l1agehm
MD5

f24e6374518fa7aed3d24a064a03bd23
SHA1

d0ffebdb6e5f97c2842d5578f889345b88224d5c
SHA256

995944ed13ab4ff7f88fa268bb0c29b23ff762f4329730fd056dcac5e27f9d22
SHA512

de8c3f80802c06bc85dc1605aae39e981e46861820fd2e2b87eca28febcafc26513ac562d8c133799ab18ffe7c752b45cd3e1fbf6c539e9db9fd45686fa1c484
SSDEEP

12288:MkzXMinmtrfsNG9USY7x3lgSsIXlYlOHls2E/qZaTcMUJnGHqsvXX1tfLs:LjArfCG+nN3aNIXNFZ5R1GHqsvDI

Score

10^/10

ctblocker ransomware

Malware Config

Extracted

Path

C:\ProgramData\onfckwn.html

Ransom Note

Your documents, photos, databases and other important files have been encrypted with strongest encryption and unique key, generated for this computer. Private decryption key is stored on a secret Internet server and nobody can decrypt your files until you pay and obtain the private key. If you see the main locker window, follow the instructions on the locker. Overwise, it's seems that you or your antivirus deleted the locker program. Now you have the last chance to decrypt your files. Open http://kph3onblkthy4z37.onion.cab or http://kph3onblkthy4z37.tor2web.org in your browser. They are public gates to the secret server. If you have problems with gates, use direct connection: 1. Download Tor Browser from http://torproject.org. 2. In the Tor Browser open the http://kph3onblkthy4z37.onion Note that this server is available via Tor Browser only. Retry in 1 hour if site is not reachable. Copy and paste the following public key in the input form on server. Avoid missprints. Follow the instructions on the server. The list of your encrypted files: Path File

URLs

http://kph3onblkthy4z37.onion.cab

http://kph3onblkthy4z37.tor2web.org

http://kph3onblkthy4z37.onion

Targets

- Target
  
  f24e6374518fa7aed3d24a064a03bd23
- Size
  
  654KB
- MD5
  
  f24e6374518fa7aed3d24a064a03bd23
- SHA1
  
  d0ffebdb6e5f97c2842d5578f889345b88224d5c
- SHA256
  
  995944ed13ab4ff7f88fa268bb0c29b23ff762f4329730fd056dcac5e27f9d22
- SHA512
  
  de8c3f80802c06bc85dc1605aae39e981e46861820fd2e2b87eca28febcafc26513ac562d8c133799ab18ffe7c752b45cd3e1fbf6c539e9db9fd45686fa1c484
- SSDEEP
  
  12288:MkzXMinmtrfsNG9USY7x3lgSsIXlYlOHls2E/qZaTcMUJnGHqsvXX1tfLs:LjArfCG+nN3aNIXNFZ5R1GHqsvDI
Score

10^/10

ctblocker ransomware
- CTB-Locker
  Ransomware family which uses Tor to hide its C2 communications.
  ransomware ctblocker
- Deletes shadow copies
  Ransomware often targets backup files to inhibit system recovery.
  ransomware
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE
- Drops desktop.ini file(s)
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
- Drops file in System32 directory
- Sets desktop wallpaper using registry
  ransomware
behavioral1 behavioral2