Overview

overview

10

Static

static

3

VirusShare...83.exe

windows7-x64

10

VirusShare...83.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    VirusShare_820330e49a0f1aa4aca6fed989d07083

  • Size

    352KB

  • Sample

    240610-nr3vtahd5t

  • MD5

    820330e49a0f1aa4aca6fed989d07083

  • SHA1

    a9a90a57252ae0ce4adf0a6d1b2a7de0cc4775d1

  • SHA256

    a9bcbc903b6a4fe98280f6de765c3362bdddc2fd49ce3312287c0a9ccdb4a526

  • SHA512

    425229479c423bcd16502954d851cbad8199fa2ac4fe1e8b2a029470e589bfbff41aab6ae9bea2216f4cb3c3fa69f1cc54c8f1747cf44d1d82551c875640930c

  • SSDEEP

    6144:pMeb/EDtpBx1aRXJub19pf3gOURaJmf+ubexB3wLaYZSzvF:pTb/wtN1aRXJg1f3gO9Jm+u2BgeYkzv

Score
10/10
teslacryptdefense_evasionexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\_ReCoVeRy_+sxkdi.txt

Family

teslacrypt

Ransom Note
NOT YOUR LANGUAGE? USE https://translate.google.com What happened to your files ? All of your files were protected by a strong encryption with RSA4096 More information about the encryption keys using RSA4096 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) How did this happen ? !!! Specially for your PC was generated personal RSA4096 Key , both public and private. !!! ALL YOUR FILES were encrypted with the public key, which has been transferred to your computer via the Internet. !!! Decrypting of your files is only possible with the help of the private key and decrypt program , which is on our Secret Server What do I do ? So, there are two ways you can choose: wait for a miracle and get your price doubled, or start obtaining BITCOIN NOW! , and restore your data easy way. If You have really valuable data, you better not waste your time, because there is no other way to get your files, except make a payment. For more specific instructions, please visit your personal home page, there are a few different addresses pointing to your page below: 1 - http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/95481C9AC03AB8 2 - http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/95481C9AC03AB8 3 - http://yyre45dbvn2nhbefbmh.begumvelic.at/95481C9AC03AB8 If for some reasons the addresses are not available, follow these steps: 1 - Download and install tor-browser: http://www.torproject.org/projects/torbrowser.html.en 2 - After a successful installation, run the browser 3 - Type in the address bar: xlowfznrg4wf7dli.onion/95481C9AC03AB8 4 - Follow the instructions on the site IMPORTANT INFORMATION Your personal pages http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/95481C9AC03AB8 http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/95481C9AC03AB8 http://yyre45dbvn2nhbefbmh.begumvelic.at/95481C9AC03AB8 Your personal page Tor-Browser xlowfznrg4wf7dli.ONION/95481C9AC03AB8
URLs

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/95481C9AC03AB8

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/95481C9AC03AB8

http://yyre45dbvn2nhbefbmh.begumvelic.at/95481C9AC03AB8

http://xlowfznrg4wf7dli.ONION/95481C9AC03AB8

Extracted

Path

C:\Program Files\7-Zip\Lang\_ReCoVeRy_+rumwy.txt

Family

teslacrypt

Ransom Note
NOT YOUR LANGUAGE? USE https://translate.google.com What happened to your files ? All of your files were protected by a strong encryption with RSA4096 More information about the encryption keys using RSA4096 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) How did this happen ? !!! Specially for your PC was generated personal RSA4096 Key , both public and private. !!! ALL YOUR FILES were encrypted with the public key, which has been transferred to your computer via the Internet. !!! Decrypting of your files is only possible with the help of the private key and decrypt program , which is on our Secret Server What do I do ? So, there are two ways you can choose: wait for a miracle and get your price doubled, or start obtaining BITCOIN NOW! , and restore your data easy way. If You have really valuable data, you better not waste your time, because there is no other way to get your files, except make a payment. For more specific instructions, please visit your personal home page, there are a few different addresses pointing to your page below: 1 - http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/264591A4AF7D8D95 2 - http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/264591A4AF7D8D95 3 - http://yyre45dbvn2nhbefbmh.begumvelic.at/264591A4AF7D8D95 If for some reasons the addresses are not available, follow these steps: 1 - Download and install tor-browser: http://www.torproject.org/projects/torbrowser.html.en 2 - After a successful installation, run the browser 3 - Type in the address bar: xlowfznrg4wf7dli.onion/264591A4AF7D8D95 4 - Follow the instructions on the site IMPORTANT INFORMATION Your personal pages http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/264591A4AF7D8D95 http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/264591A4AF7D8D95 http://yyre45dbvn2nhbefbmh.begumvelic.at/264591A4AF7D8D95 Your personal page Tor-Browser xlowfznrg4wf7dli.ONION/264591A4AF7D8D95
URLs

http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/264591A4AF7D8D95

http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/264591A4AF7D8D95

http://yyre45dbvn2nhbefbmh.begumvelic.at/264591A4AF7D8D95

http://xlowfznrg4wf7dli.ONION/264591A4AF7D8D95

Targets

    • Target

      VirusShare_820330e49a0f1aa4aca6fed989d07083

    • Size

      352KB

    • MD5

      820330e49a0f1aa4aca6fed989d07083

    • SHA1

      a9a90a57252ae0ce4adf0a6d1b2a7de0cc4775d1

    • SHA256

      a9bcbc903b6a4fe98280f6de765c3362bdddc2fd49ce3312287c0a9ccdb4a526

    • SHA512

      425229479c423bcd16502954d851cbad8199fa2ac4fe1e8b2a029470e589bfbff41aab6ae9bea2216f4cb3c3fa69f1cc54c8f1747cf44d1d82551c875640930c

    • SSDEEP

      6144:pMeb/EDtpBx1aRXJub19pf3gOURaJmf+ubexB3wLaYZSzvF:pTb/wtN1aRXJg1f3gO9Jm+u2BgeYkzv

    Score
    10/10
    teslacryptdefense_evasionexecutionimpactpersistenceransomwarespywarestealer

    • TeslaCrypt, AlphaCrypt

      Ransomware based on CryptoLocker. Shut down by the developers in 2016.

      ransomwareteslacrypt

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Renames multiple (439) files with added filename extension

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

      ransomware

    • Checks computer location settings

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

    • Deletes itself

    • Drops startup file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks