General

  • Target

    spam.ps1

  • Size

    751B

  • Sample

    250214-1wth6aznew

  • MD5

    8b0e2d190f955bf1704000f1ff0e728c

  • SHA1

    d22e5aeaedf9b18f237cf1ad475c522478aad47a

  • SHA256

    d01912af7edc66bb1e9f135ae5e4804f8e4b09713239c07850c987d7a1362906

  • SHA512

    a0802f01e3670b1b5003dc1dc2bde8059fff200cc1090919bf54dab2b6eebba4a717b68aee21f4b8d3034707333cd0a0a86d0ba01d477321954d253f26ca5e03

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Microsoft\OneNote\16.0\cache\_R_E_A_D___T_H_I_S___8KSUH4PG_.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/A277-1178-4133-0098-BEFC 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/A277-1178-4133-0098-BEFC 2. http://xpcx6erilkjced3j.19kdeh.top/A277-1178-4133-0098-BEFC 3. http://xpcx6erilkjced3j.1mpsnr.top/A277-1178-4133-0098-BEFC 4. http://xpcx6erilkjced3j.18ey8e.top/A277-1178-4133-0098-BEFC 5. http://xpcx6erilkjced3j.17gcun.top/A277-1178-4133-0098-BEFC ----- Note! These are temporary addresses! They will be available for a limited amount of time! -----
URLs

http://xpcx6erilkjced3j.onion/A277-1178-4133-0098-BEFC

http://xpcx6erilkjced3j.1n5mod.top/A277-1178-4133-0098-BEFC

http://xpcx6erilkjced3j.19kdeh.top/A277-1178-4133-0098-BEFC

http://xpcx6erilkjced3j.1mpsnr.top/A277-1178-4133-0098-BEFC

http://xpcx6erilkjced3j.18ey8e.top/A277-1178-4133-0098-BEFC

http://xpcx6erilkjced3j.17gcun.top/A277-1178-4133-0098-BEFC

Targets

    • Target

      spam.ps1

    • Size

      751B

    • MD5

      8b0e2d190f955bf1704000f1ff0e728c

    • SHA1

      d22e5aeaedf9b18f237cf1ad475c522478aad47a

    • SHA256

      d01912af7edc66bb1e9f135ae5e4804f8e4b09713239c07850c987d7a1362906

    • SHA512

      a0802f01e3670b1b5003dc1dc2bde8059fff200cc1090919bf54dab2b6eebba4a717b68aee21f4b8d3034707333cd0a0a86d0ba01d477321954d253f26ca5e03

    • Cerber

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

    • Cerber family

    • Modifies WinLogon for persistence

    • Contacts a large (1124) amount of remote hosts

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

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Drops startup file

    • Executes dropped EXE

    • Adds Run key to start application

    • 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 Enterprise v15

Tasks