General

  • Target

    WannaCrypt0r.zip

  • Size

    3.3MB

  • Sample

    240504-vjrwxaeh38

  • MD5

    e58fdd8b0ce47bcb8ffd89f4499d186d

  • SHA1

    b7e2334ac6e1ad75e3744661bb590a2d1da98b03

  • SHA256

    283f40e9d550833bec101a24fd6fd6fbd9937ed32a51392e818ffff662a1d30a

  • SHA512

    95b6567b373efa6aec6a9bfd7af70ded86f8c72d3e8ba75f756024817815b830f54d18143b0be6de335dd0ca0afe722f88a4684663be5a84946bd30343d43a8c

  • SSDEEP

    49152:0x8KJHkctwJdVlgBq+q1vqtWdhQIajy4AsOLgVv+L3QXz+B7m1qyapDgJmeiTLW:0x8KJX+dVHvtzaj3xWgw79icXW

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Roaming\Microsoft\OneNote\16.0\_R_E_A_D___T_H_I_S___WRDXZ7_.txt

Family

cerber

Ransom Note
Hi, I'am CRBR ENCRYPTOR ;) ----- ALL YOUR DOCUMENTS, PH0T0S, DATABASES AND OTHER IMPORTANT FILES HAVE BEEN ENCRYPTED! ----- The only one way to decrypt your files is to receive the private key and decryption program. To receive the private key and decryption program go to any decrypted folder, inside there is the special file (*_R_E_A_D___T_H_I_S_*) with complete instructions how to decrypt your files. If you cannot find any (*_R_E_A_D___T_H_I_S_*) file at your PC, follow the instructions below: ----- 1. Download "Tor Browser" from https://www.torproject.org/ and install it. 2. In the "Tor Browser" open your personal page here: http://xpcx6erilkjced3j.onion/C3FA-C3C5-6FBF-0098-B5B0 Note! This page is available via "Tor Browser" only. ----- Also you can use temporary addresses on your personal page without using "Tor Browser". ----- 1. http://xpcx6erilkjced3j.1n5mod.top/C3FA-C3C5-6FBF-0098-B5B0 2. http://xpcx6erilkjced3j.19kdeh.top/C3FA-C3C5-6FBF-0098-B5B0 3. http://xpcx6erilkjced3j.1mpsnr.top/C3FA-C3C5-6FBF-0098-B5B0 4. http://xpcx6erilkjced3j.18ey8e.top/C3FA-C3C5-6FBF-0098-B5B0 5. http://xpcx6erilkjced3j.17gcun.top/C3FA-C3C5-6FBF-0098-B5B0 ----- Note! These are temporary addresses! They will be available for a limited amount of time! -----
URLs

http://xpcx6erilkjced3j.onion/C3FA-C3C5-6FBF-0098-B5B0

http://xpcx6erilkjced3j.1n5mod.top/C3FA-C3C5-6FBF-0098-B5B0

http://xpcx6erilkjced3j.19kdeh.top/C3FA-C3C5-6FBF-0098-B5B0

http://xpcx6erilkjced3j.1mpsnr.top/C3FA-C3C5-6FBF-0098-B5B0

http://xpcx6erilkjced3j.18ey8e.top/C3FA-C3C5-6FBF-0098-B5B0

http://xpcx6erilkjced3j.17gcun.top/C3FA-C3C5-6FBF-0098-B5B0

Targets

    • Target

      WannaCrypt0r.zip

    • Size

      3.3MB

    • MD5

      e58fdd8b0ce47bcb8ffd89f4499d186d

    • SHA1

      b7e2334ac6e1ad75e3744661bb590a2d1da98b03

    • SHA256

      283f40e9d550833bec101a24fd6fd6fbd9937ed32a51392e818ffff662a1d30a

    • SHA512

      95b6567b373efa6aec6a9bfd7af70ded86f8c72d3e8ba75f756024817815b830f54d18143b0be6de335dd0ca0afe722f88a4684663be5a84946bd30343d43a8c

    • SSDEEP

      49152:0x8KJHkctwJdVlgBq+q1vqtWdhQIajy4AsOLgVv+L3QXz+B7m1qyapDgJmeiTLW:0x8KJX+dVHvtzaj3xWgw79icXW

    • Cerber

      Cerber is a widely used ransomware-as-a-service (RaaS), first seen in 2017.

    • Contacts a large (1106) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

    • Modifies Windows Firewall

    • Drops startup file

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

1
T1112

Discovery

Network Service Discovery

1
T1046

Query Registry

2
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Command and Control

Web Service

1
T1102

Impact

Defacement

1
T1491

Tasks