maze

General

Target

UDS-Trojan.Multi.GenericML.xnet-ef95c0b829c2aad4eca365fb9b37719b51f5d8ab518a2ccac920ef65852982d1.exe
Size

4.4MB
Sample

220920-fppw6scac9
MD5

a83040b851cf14288d3262d2bd4460fc
SHA1

bac8269c66d5b0ca2c5487eb3366c910c99a67e1
SHA256

ef95c0b829c2aad4eca365fb9b37719b51f5d8ab518a2ccac920ef65852982d1
SHA512

89848ac37b274bcdf55cbba3b0dd46013de75563a95ed197d42269a2c1c3c2f62c935f24e8db2a912d5cbfd808575dff12d9141eaea3b103cc4bb7707b1cda8e
SSDEEP

98304:6MNbfTJlGuc3B57vYT8A7X27aKc736CtbL8RdwZkid1W5:nN7tvcjUT8A7X219uKdw2B

Score

10^/10

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\DECRYPT-FILES.TXT

Ransom Note

Ooops! All your important files are encrypted! [+] What happend to my computer? [+] All your important files are encrypted. No one can help you to restore files without our special decryptor. Backups were either encrypted or deleted. Shadow copies also removed. If you want to restore some of your files for free write to email (contact is below) and attach 2-3 encrypted files. You will receive decrypted samples. To decrypt other files you have to pay $250. [+] How do i pay? [+] Payment is accepted in Bitcoin only. Please check the current price of Bitcoin and buy some Bitcoins. And send the correct amount to the address specified at the bottom. [+] How can i contact? [+] 1.Download Tor browser (https://www.torproject.org/) 2.Create account on mail2tor (http://mail2tor2zyjdctd.onion/) 3.Write email to us (CobraLocker@mail2tor.com) If you can't use tor in your country you can write to us on our temporary email address. [+] What if i already paid? [+] Send your Bitcoin wallet ID to e-mail provided above. Attention! 1.Do not modify encrypted files. 2.Do not try decrypt your data using third party software. 3.Do not turn off your computer. Our bitcoin address: bc1q80xu9j6wpesm2jg2w4pzpyhqjd5wsrg46ap6pe Our temporary e-mail address: f64dfn9pbhybaqfrh5dp65jrzcg@protonmail.com

Emails

CobraLocker@mail2tor.com

f64dfn9pbhybaqfrh5dp65jrzcg@protonmail.com

URLs

http://mail2tor2zyjdctd.onion/

Targets

- Target
  
  UDS-Trojan.Multi.GenericML.xnet-ef95c0b829c2aad4eca365fb9b37719b51f5d8ab518a2ccac920ef65852982d1.exe
- Size
  
  4.4MB
- MD5
  
  a83040b851cf14288d3262d2bd4460fc
- SHA1
  
  bac8269c66d5b0ca2c5487eb3366c910c99a67e1
- SHA256
  
  ef95c0b829c2aad4eca365fb9b37719b51f5d8ab518a2ccac920ef65852982d1
- SHA512
  
  89848ac37b274bcdf55cbba3b0dd46013de75563a95ed197d42269a2c1c3c2f62c935f24e8db2a912d5cbfd808575dff12d9141eaea3b103cc4bb7707b1cda8e
- SSDEEP
  
  98304:6MNbfTJlGuc3B57vYT8A7X27aKc736CtbL8RdwZkid1W5:nN7tvcjUT8A7X219uKdw2B
Score

10^/10

maze discovery evasion exploit ransomware themida trojan
- Contains code to disable Windows Defender
  A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
- Maze
  Ransomware family also known as ChaCha.
  trojan ransomware maze
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
  evasion
- Disables Task Manager via registry modification
  evasion
- Executes dropped EXE
- Modifies extensions of user files
  Ransomware generally changes the extension on encrypted files.
  ransomware
- Possible privilege escalation attempt
  exploit
- Checks BIOS information in registry
  BIOS information is often read in order to detect sandboxing environments.
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Modifies file permissions
  discovery
- Themida packer
  Detects Themida, an advanced Windows software protection system.
  themida
- Checks whether UAC is enabled
  evasion trojan
- Suspicious use of NtSetInformationThreadHideFromDebugger
behavioral1 behavioral2