ctblocker | 8c5385fccd9d705cca3f3e85227db53c67cfe19ae5460b4335bcf39a32c9ff07

General

Target

6d83d702fad47bf24a04c4b3e2c9d930_JaffaCakes118
Size

714KB
Sample

241023-hbbhqswbpd
MD5

6d83d702fad47bf24a04c4b3e2c9d930
SHA1

e706a46e3bbb821e8f4aec1f3e488be1504b855b
SHA256

8c5385fccd9d705cca3f3e85227db53c67cfe19ae5460b4335bcf39a32c9ff07
SHA512

62cda9516333dfe92d4099f2cc25d8e434ac23abc28dbd522695b200a4a1545473a6a419bd9ac8fadb54283980a82f37d1faa2ab32df92a9d10e74750c58499d
SSDEEP

12288:mSuYrHkpL3KyptgMzPez1OkvHj3CfL0PzGJRZLB3LE:X1kpL3KyAWPez1fD3mLIzGvZt3LE

Score

10^/10

Malware Config

Extracted

Path

C:\ProgramData\ilimarf.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://43qzvceo6ondd6wt.onion.cab or http://43qzvceo6ondd6wt.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://43qzvceo6ondd6wt.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://43qzvceo6ondd6wt.onion.cab

http://43qzvceo6ondd6wt.tor2web.org

http://43qzvceo6ondd6wt.onion

Targets

- Target
  
  6d83d702fad47bf24a04c4b3e2c9d930_JaffaCakes118
- Size
  
  714KB
- MD5
  
  6d83d702fad47bf24a04c4b3e2c9d930
- SHA1
  
  e706a46e3bbb821e8f4aec1f3e488be1504b855b
- SHA256
  
  8c5385fccd9d705cca3f3e85227db53c67cfe19ae5460b4335bcf39a32c9ff07
- SHA512
  
  62cda9516333dfe92d4099f2cc25d8e434ac23abc28dbd522695b200a4a1545473a6a419bd9ac8fadb54283980a82f37d1faa2ab32df92a9d10e74750c58499d
- SSDEEP
  
  12288:mSuYrHkpL3KyptgMzPez1OkvHj3CfL0PzGJRZLB3LE:X1kpL3KyAWPez1fD3mLIzGvZt3LE
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