ctblocker | 748b8dc9ddd13cfdf844a6ba40a59dc5a464d0240133394adffc5496cd1021e7

General

Target

748b8dc9ddd13cfdf844a6ba40a59dc5a464d0240133394adffc5496cd1021e7
Size

654KB
Sample

221128-tvmwnagf28
MD5

9cd4cebf8b04cd6864b59e4c0cf4aafa
SHA1

2287faa3026c5981f3796268112998ac1c06c5d3
SHA256

748b8dc9ddd13cfdf844a6ba40a59dc5a464d0240133394adffc5496cd1021e7
SHA512

03ec7b69a8f616ab4254429499d80e5b5e7e28c1b44b418b446f6a341bdc77393482cd790764981498c6d54d2ffd0d32c118c45dee056d681533167f7b83359d
SSDEEP

12288:MkzXMinmtrfsNG9USY7x3lgSsIXlYlOHls2E/qZaTcMUJnGHqsvXX1tfLs:LjArfCG+nN3aNIXNFZ5R1GHqsvDI

Score

10^/10

ctblocker ransomware

Malware Config

Extracted

Path

C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\!Decrypt-All-Files-otdblmn.txt

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. O4ISHRJ-ABJLJGF-J4XJWRM-ZQ2QKSI-RGVONHD-JZTBNSL-6S3QSCY-H6IYIYO ODI6J2U-M4X4HRR-KHN52EW-XDZDWPZ-CKQQ7PF-4TIL2SS-V6H74RI-QSMOJRD QDN3P76-5C3XDAU-URNFY5T-JMN4OG3-MJEUJXA-MU2DUP4-2YOJIGK-ARHSATB Follow the instructions on the server.

URLs

http://kph3onblkthy4z37.onion.cab

http://kph3onblkthy4z37.tor2web.org

http://kph3onblkthy4z37.onion/

Extracted

Path

C:\Users\Admin\Documents\!Decrypt-All-Files-otdblmn.txt

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. O4ISHRJ-ABJLJGF-J4XJWRM-ZQ2QKSI-RGVONHD-JZTBNSL-6S3QSCY-H6IYIYO ODI6J2U-M4X4HRR-KHN52EW-XDZDWPZ-CKQQ7PF-4TIL2SS-V6H74RI-QSMOJRD QDN3P76-5C3XDAU-URNFY5T-JMN4OG3-MJEURFA-SB2DUP4-2YOJIGK-ARHSDOA Follow the instructions on the server.

URLs

http://kph3onblkthy4z37.onion.cab

http://kph3onblkthy4z37.tor2web.org

http://kph3onblkthy4z37.onion/

Targets

- Target
  
  748b8dc9ddd13cfdf844a6ba40a59dc5a464d0240133394adffc5496cd1021e7
- Size
  
  654KB
- MD5
  
  9cd4cebf8b04cd6864b59e4c0cf4aafa
- SHA1
  
  2287faa3026c5981f3796268112998ac1c06c5d3
- SHA256
  
  748b8dc9ddd13cfdf844a6ba40a59dc5a464d0240133394adffc5496cd1021e7
- SHA512
  
  03ec7b69a8f616ab4254429499d80e5b5e7e28c1b44b418b446f6a341bdc77393482cd790764981498c6d54d2ffd0d32c118c45dee056d681533167f7b83359d
- 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
- Executes dropped EXE
- Modifies extensions of user files
  Ransomware generally changes the extension on encrypted files.
  ransomware
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
  ransomware
behavioral1 behavioral2