Resubmissions

05-02-2025 10:34

250205-mmassssng1 10

05-02-2025 10:33

250205-mlx7pssnfz 10

13-01-2022 17:53

220113-wgrc2abhgp 10

General

  • Target

    scvhost.exe

  • Size

    500KB

  • Sample

    250205-mlx7pssnfz

  • MD5

    e04becb4c8ff826e5e5aa305dee074bc

  • SHA1

    07bf49663c9c76e4a468a98f2fe3a55977432a39

  • SHA256

    5fa8c4ab6dc45672099078277903cce8e86ae1e310f24a0dd9862166e3c0e30c

  • SHA512

    cb4c086df9395d1ebc68cc576d241e584c454e45db5365ed2196f0529cb6c2cad70b0f061e7fced4d980f10aabf8829f6e69602be8e086f73d9c1aa7d4d48fa2

  • SSDEEP

    12288:uKWAb1TS+OeO+OeNhBBhhBB8dBwD9EX1hQvuqN/4fsw86:uKWe+dBk9EFO7NQh

Malware Config

Extracted

Family

mespinoza

Attributes
  • ransomnote

    Hi Company, Every byte on any types of your devices was encrypted. Don't try to use backups because it were encrypted too. To get all your data back contact us: [email protected] Also, be aware that we downloaded files from your servers and in case of non-payment we will be forced to upload them on our website, and if necessary, we will sell them on the darknet. Check out our website, we just posted there new updates for our partners: http://pysa2bitc5ldeyfak4seeruqymqs4sj5wt5qkcq7aoyg4h2acqieywad.onion/ To go to our site you have to use TOR Browser. Download link: https://www.torproject.org/download/ -------------- FAQ: 1. Q: How can I make sure you don't fooling me? A: You can send us 2 files(max 2mb). 2. Q: What to do to get all data back? A: Don't restart the computer, don't move files and write us. 3. Q: What if I have no response? A: Wait and we will answer you in 24 hours. 4. Q: What to tell my boss? A: Protect Your System Amigo.

Extracted

Path

C:\Users\Readme.README

Ransom Note
Hi Company, Every byte on any types of your devices was encrypted. Don't try to use backups because it were encrypted too. To get all your data back contact us: [email protected] Also, be aware that we downloaded files from your servers and in case of non-payment we will be forced to upload them on our website, and if necessary, we will sell them on the darknet. Check out our website, we just posted there new updates for our partners: http://pysa2bitc5ldeyfak4seeruqymqs4sj5wt5qkcq7aoyg4h2acqieywad.onion/ To go to our site you have to use TOR Browser. Download link: https://www.torproject.org/download/ -------------- FAQ: 1. Q: How can I make sure you don't fooling me? A: You can send us 2 files(max 2mb). 2. Q: What to do to get all data back? A: Don't restart the computer, don't move files and write us. 3. Q: What if I have no response? A: Wait and we will answer you in 24 hours. 4. Q: What to tell my boss? A: Protect Your System Amigo.
URLs

http://pysa2bitc5ldeyfak4seeruqymqs4sj5wt5qkcq7aoyg4h2acqieywad.onion/

Targets

    • Target

      scvhost.exe

    • Size

      500KB

    • MD5

      e04becb4c8ff826e5e5aa305dee074bc

    • SHA1

      07bf49663c9c76e4a468a98f2fe3a55977432a39

    • SHA256

      5fa8c4ab6dc45672099078277903cce8e86ae1e310f24a0dd9862166e3c0e30c

    • SHA512

      cb4c086df9395d1ebc68cc576d241e584c454e45db5365ed2196f0529cb6c2cad70b0f061e7fced4d980f10aabf8829f6e69602be8e086f73d9c1aa7d4d48fa2

    • SSDEEP

      12288:uKWAb1TS+OeO+OeNhBBhhBB8dBwD9EX1hQvuqN/4fsw86:uKWe+dBk9EFO7NQh

    • Mespinoza Ransomware

      Also known as Pysa. Ransomware-as-a-servoce which first appeared in 2020.

    • Mespinoza family

    • Renames multiple (2569) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Checks computer location settings

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

    • Deletes itself

    • Reads user/profile data of web browsers

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

MITRE ATT&CK Enterprise v15

Tasks