Overview

overview

10

Static

static

3

VirusShare...88.exe

windows7-x64

10

VirusShare...88.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    VirusShare_6f2b558e974817ff40006ddb7039c388
  • Size 300KB
  • Sample240610-nrtbdahd3t
  • SHA256 ce68afd45e2b3448aee1d06ea8f46a5e6ca9d4d370be316e96fa720a9ab76ada
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
defense_evasionevasionexecutionimpactransomwarespywarestealer

Malware Config

Extracted

Path

  • C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\how_recover+iux.txt

Ransom Note
  • ________________________1234____________________________________- What happened to your files ? All of your files were protected by a strong encryption with RSA-2048. More information about the encryption keys using RSA-2048 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) What does this mean ? This means that the structure and data within your files have been irrevocably changed, you will not be able to work with them, read them or see them, it is the same thing as losing them forever, but with our help, you can restore them. How did this happen ? Especially for you, on our server was generated the secret key pair RSA-2048 - 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 ? ________________________1234____________________________________ Alas, if you do not take the necessary measures for the specified time then the conditions for obtaining the private key will be changed. If you really value your data, then we suggest you do not waste valuable time searching for other solutions because they do not exist. ________________________1234____________________________________ For more specific instructions, please visit your personal home page, there are a few different addresses pointing to your page below: 1. http://gfhshhf.home7dfg4.com/DA9DB71AA0133CBB 2. http://td63hftt.buwve5ton2.com/DA9DB71AA0133CBB 3. https://tw7kaqthui5ojcez.onion.to/DA9DB71AA0133CBB 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 and wait for initialization. 3. Type in the address bar: tw7kaqthui5ojcez.onion/DA9DB71AA0133CBB 4. Follow the instructions on the site. IMPORTANT INFORMATION: Your personal pages: http://gfhshhf.home7dfg4.com/DA9DB71AA0133CBB http://td63hftt.buwve5ton2.com/DA9DB71AA0133CBB https://tw7kaqthui5ojcez.onion.to/DA9DB71AA0133CBB Your personal page (using TOR-Browser): tw7kaqthui5ojcez.onion/DA9DB71AA0133CBB Your personal identification number (if you open the site (or TOR-Browser's) directly): DA9DB71AA0133CBB
URLs

  • http://gfhshhf.home7dfg4.com/DA9DB71AA0133CBB

  • http://td63hftt.buwve5ton2.com/DA9DB71AA0133CBB

  • https://tw7kaqthui5ojcez.onion.to/DA9DB71AA0133CBB

  • http://tw7kaqthui5ojcez.onion/DA9DB71AA0133CBB

Extracted

Path

  • C:\Program Files\7-Zip\Lang\how_recover+tim.txt

Ransom Note
  • ________________________1234____________________________________- What happened to your files ? All of your files were protected by a strong encryption with RSA-2048. More information about the encryption keys using RSA-2048 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) What does this mean ? This means that the structure and data within your files have been irrevocably changed, you will not be able to work with them, read them or see them, it is the same thing as losing them forever, but with our help, you can restore them. How did this happen ? Especially for you, on our server was generated the secret key pair RSA-2048 - 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 ? ________________________1234____________________________________ Alas, if you do not take the necessary measures for the specified time then the conditions for obtaining the private key will be changed. If you really value your data, then we suggest you do not waste valuable time searching for other solutions because they do not exist. ________________________1234____________________________________ For more specific instructions, please visit your personal home page, there are a few different addresses pointing to your page below: 1. http://gfhshhf.home7dfg4.com/4FB5E29B87192DE6 2. http://td63hftt.buwve5ton2.com/4FB5E29B87192DE6 3. https://tw7kaqthui5ojcez.onion.to/4FB5E29B87192DE6 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 and wait for initialization. 3. Type in the address bar: tw7kaqthui5ojcez.onion/4FB5E29B87192DE6 4. Follow the instructions on the site. IMPORTANT INFORMATION: Your personal pages: http://gfhshhf.home7dfg4.com/4FB5E29B87192DE6 http://td63hftt.buwve5ton2.com/4FB5E29B87192DE6 https://tw7kaqthui5ojcez.onion.to/4FB5E29B87192DE6 Your personal page (using TOR-Browser): tw7kaqthui5ojcez.onion/4FB5E29B87192DE6 Your personal identification number (if you open the site (or TOR-Browser's) directly): 4FB5E29B87192DE6
URLs

  • http://gfhshhf.home7dfg4.com/4FB5E29B87192DE6

  • http://td63hftt.buwve5ton2.com/4FB5E29B87192DE6

  • https://tw7kaqthui5ojcez.onion.to/4FB5E29B87192DE6

  • http://tw7kaqthui5ojcez.onion/4FB5E29B87192DE6

Targets

    • Target
      VirusShare_6f2b558e974817ff40006ddb7039c388
    • Size 300KB
    • SHA256 ce68afd45e2b3448aee1d06ea8f46a5e6ca9d4d370be316e96fa720a9ab76ada
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    defense_evasionevasionexecutionimpactransomwarespywarestealer

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Renames multiple (417) 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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks