Overview

overview

10

Static

static

10

9317dfe933...in.exe

windows7_x64

10

9317dfe933...in.exe

windows10_x64

10

Analysis

  • max time kernel
    120s
  • max time network
    123s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    24-12-2021 11:14

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General

  • Target

    9317dfe933c5c58703e0555320b047ca6c85b8bd2af03667cd4e42d1a0984726.bin.exe

  • Size

    541KB

  • MD5

    ccadb45534279d6a27e30c10e1655c7f

  • SHA1

    9b88f4388dd785a09efbafb0b7474447b118e92b

  • SHA256

    9317dfe933c5c58703e0555320b047ca6c85b8bd2af03667cd4e42d1a0984726

  • SHA512

    cac5bb24ed1b6037bec76e0df5409a6139aa7b8b01205b3c515157c16b879ede6fa1b61598f3fddb350395f1d5b5af044ec23ff99030bb4607494cf13f06aa1d

Score
10/10
mespinozaneshtapersistenceransomwarespywarestealer

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] [email protected] [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/ -------------- 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 to tell my boss? A: Protect Your System Amigo.

Signatures

  • Mespinoza Ransomware 2 TTPs

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

    ransomwaremespinoza
  • Modifies system executable filetype association 2 TTPs 1 IoCs
    persistence
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

    persistencespywareneshta
  • Executes dropped EXE 1 IoCs
  • Modifies extensions of user files 10 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • System policy modification 1 TTPs 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\9317dfe933c5c58703e0555320b047ca6c85b8bd2af03667cd4e42d1a0984726.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\9317dfe933c5c58703e0555320b047ca6c85b8bd2af03667cd4e42d1a0984726.bin.exe"
    1⤵
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2464
    • C:\Users\Admin\AppData\Local\Temp\3582-490\9317dfe933c5c58703e0555320b047ca6c85b8bd2af03667cd4e42d1a0984726.bin.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\9317dfe933c5c58703e0555320b047ca6c85b8bd2af03667cd4e42d1a0984726.bin.exe"
      2⤵
      • Executes dropped EXE
      • Modifies extensions of user files
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:3776
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\update.bat" "
        3⤵
          PID:2976

    Network

    MITRE ATT&CK Enterprise v6

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    Downloads