General

  • Target

    http://92k.us

  • Sample

    250117-zw7v4ssrav

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Roaming\Microsoft\OneNote\16.0\_R_E_A_D___T_H_I_S___0U84W87P_.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/18E0-D157-A6A3-0098-BEB8 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/18E0-D157-A6A3-0098-BEB8 2. http://xpcx6erilkjced3j.19kdeh.top/18E0-D157-A6A3-0098-BEB8 3. http://xpcx6erilkjced3j.1mpsnr.top/18E0-D157-A6A3-0098-BEB8 4. http://xpcx6erilkjced3j.18ey8e.top/18E0-D157-A6A3-0098-BEB8 5. http://xpcx6erilkjced3j.17gcun.top/18E0-D157-A6A3-0098-BEB8 ----- Note! These are temporary addresses! They will be available for a limited amount of time! -----
URLs

http://xpcx6erilkjced3j.onion/18E0-D157-A6A3-0098-BEB8

http://xpcx6erilkjced3j.1n5mod.top/18E0-D157-A6A3-0098-BEB8

http://xpcx6erilkjced3j.19kdeh.top/18E0-D157-A6A3-0098-BEB8

http://xpcx6erilkjced3j.1mpsnr.top/18E0-D157-A6A3-0098-BEB8

http://xpcx6erilkjced3j.18ey8e.top/18E0-D157-A6A3-0098-BEB8

http://xpcx6erilkjced3j.17gcun.top/18E0-D157-A6A3-0098-BEB8

Targets

    • Cerber

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

    • Cerber family

    • Contacts a large (1306) amount of remote hosts

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

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Creates a large amount of network flows

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

    • 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

    • Mark of the Web detected: This indicates that the page was originally saved or cloned.

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v15

Tasks

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