ctblocker | f681f08b89b710b8d32d08a6569629a6403459aa5256cc68e0e3d2b86934a221

General

Target

3f94abbd4364ef5f17dac6211b4e67f2_JaffaCakes118
Size

693KB
Sample

241013-nkn33syfjl
MD5

3f94abbd4364ef5f17dac6211b4e67f2
SHA1

9e8a22912a23c6efa358f20d6e86cc6b77634c74
SHA256

f681f08b89b710b8d32d08a6569629a6403459aa5256cc68e0e3d2b86934a221
SHA512

a0d973bb1a4b4f816bc22851d6a8ac7f578cdbe67cddec39aec6e6639cd4484b80b58642f9b9821970cbf4bf221c43a38388260dd93c3566406d80cd01f39360
SSDEEP

12288:2yi5zcMZ13XNEK5s37Hs7bOnCxrKzptvC0bNr/BWoo0PaAhyt/imgc0fYAChCJmr:2yi5zpZZWqs37HsGC8BRZWLWa6UisMrY

Score

10^/10

Malware Config

Extracted

Path

C:\ProgramData\axwcwrc.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://tmc2ybfqzgkaeilm.onion.cab or http://tmc2ybfqzgkaeilm.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://tmc2ybfqzgkaeilm.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://tmc2ybfqzgkaeilm.onion.cab

http://tmc2ybfqzgkaeilm.tor2web.org

http://tmc2ybfqzgkaeilm.onion

Targets

- Target
  
  Factuur 00078454556-00398583.pdf.exe
- Size
  
  760KB
- MD5
  
  73b5b2675d4391fe6c59cc596bcd2a04
- SHA1
  
  4a598519786f3646d459ede621337e08d67c1b3f
- SHA256
  
  34400196b5de7adde8de4f2d8a5aadd350d1ce06910b9d44c1a17969c42b1b69
- SHA512
  
  9b0f5bf43ae7b001a40f9d2742c2558e6961e3058bd67ec92108cbe75dc088ec3cbc8afeb3bd88bb0d9042db36b66cc1cff1054235fdb3ae4d1b659f0e86114f
- SSDEEP
  
  12288:BDcMXv3/NEK7s37/shbOnMxrUzbtvC0nNr/Bqoo0Pamhyx/iugcGfAAChCJeTlV3:VpX/uqs37/s4MKrRZqLWaE6iUSDX2b
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
- 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