ctblocker | aaf1c2e67e9049fcbfd9f97302d78837769e1ad20fb2c4f35c69339e95845938

General

Target

0cefce0dbbbedc5eb1febe4d85b23c71_JaffaCakes118
Size

994KB
Sample

241002-3pb2mstanp
MD5

0cefce0dbbbedc5eb1febe4d85b23c71
SHA1

6aef7d5a462268c438c8417ee0da3f130b8aa84a
SHA256

aaf1c2e67e9049fcbfd9f97302d78837769e1ad20fb2c4f35c69339e95845938
SHA512

1311cf0b918419c192b3914a01e467430f445aaf6a003338e2176b1527c74263f658d8d39bd6d9c78b70324615101026767034798945d42d25215ee4d45654bf
SSDEEP

12288:lnhtIy1hwrU6iArDokTOm4Ndc427rSWb3pM+Y9Mu506gK8uaBmuY:Nh+ykBxV4Ndc42PSWdq1JgUaB3Y

Score

10^/10

Malware Config

Extracted

Path

C:\ProgramData\esufwfj.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://onja764ig6vah2jo.onion.cab or http://onja764ig6vah2jo.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://onja764ig6vah2jo.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://onja764ig6vah2jo.onion.cab

http://onja764ig6vah2jo.tor2web.org

http://onja764ig6vah2jo.onion

Targets

- Target
  
  0cefce0dbbbedc5eb1febe4d85b23c71_JaffaCakes118
- Size
  
  994KB
- MD5
  
  0cefce0dbbbedc5eb1febe4d85b23c71
- SHA1
  
  6aef7d5a462268c438c8417ee0da3f130b8aa84a
- SHA256
  
  aaf1c2e67e9049fcbfd9f97302d78837769e1ad20fb2c4f35c69339e95845938
- SHA512
  
  1311cf0b918419c192b3914a01e467430f445aaf6a003338e2176b1527c74263f658d8d39bd6d9c78b70324615101026767034798945d42d25215ee4d45654bf
- SSDEEP
  
  12288:lnhtIy1hwrU6iArDokTOm4Ndc427rSWb3pM+Y9Mu506gK8uaBmuY:Nh+ykBxV4Ndc42PSWdq1JgUaB3Y
Score

10^/10

ctblocker defense_evasion discovery execution impact 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 defense_evasion impact execution
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE
- Loads dropped DLL
- 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
- Suspicious use of SetThreadContext
behavioral1 behavioral2