Overview

overview

10

Static

static

READS.exe

windows7_x64

10

READS.exe

windows10_x64

10

Analysis

  • max time kernel
    104s
  • max time network
    71s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    18-09-2021 11:26

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General

  • Target

    READS.exe

  • Size

    53KB

  • MD5

    9bd839a710177cf31625c09e321418ba

  • SHA1

    82ebafbffb2ff94b91c037d5b51561d726ec32c5

  • SHA256

    3e526ba55e9dc43928b592e879aa2ea896681e709a22c6b0b8911d6f264ed63c

  • SHA512

    d3974db692f256f7733ccbf5d130bdcdcc18d18147b0522e8b0a3c10161604c1ee23e651cd132e3e61d81ff99c8af5a24abf465426aedc6dca1baa7adb53fc34

Score
10/10
medusalockerransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\how_to_back_files.html

Family

medusalocker

Ransom Note
Your personal ID: ����������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ll your important files have been encrypted! Your files are safe! Only modified. (RSA+AES) ANY ATTEMPT TO RESTORE YOUR FILES WITH THIRD-PARTY SOFTWARE WILL PERMANENTLY CORRUPT IT. DO NOT MODIFY ENCRYPTED FILES. DO NOT RENAME ENCRYPTED FILES. No software available on internet can help you. We are the only ones able to solve your problem. We gathered highly confidential/personal data. These data are currently stored on a private server. This server will be immediately destroyed after your payment. If you decide to not pay, we will release your data to public or re-seller. So you can expect your data to be publicly available in the near future.. We only seek money and our goal is not to damage your reputation or prevent your business from running. You will can send us 2-3 non-important files and we will decrypt it for free to prove we are able to give your files back. Contact us for price and get decryption software. .onion * Note that this server is available via Tor browser only Follow the instructions to open the link: 1. Type the addres "https://www.torproject.org" in your Internet browser. It opens the Tor site. 2. Press "Download Tor", then press "Download Tor Browser Bundle", install and run it. 3. Now you have Tor browser. In the Tor Browser open .onion 4. Start a chat and follow the further instructions. If you can not use the above link, use the email: [email protected] [email protected] * To contact us, create a new free email account on the site: protonmail.com IF YOU DON'T CONTACT US WITHIN 72 HOURS, PRICE WILL BE HIGHER. ���������

Signatures

  • MedusaLocker

    Ransomware with several variants first seen in September 2019.

    ransomwaremedusalocker
  • Modifies extensions of user files 8 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 desktop.ini file(s) 26 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
    adwarespyware
  • Modifies registry class 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\READS.exe
    "C:\Users\Admin\AppData\Local\Temp\READS.exe"
    1⤵
    • Modifies extensions of user files
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    PID:632
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe" -ServerName:MicrosoftEdge.AppXdnhjhccw3zf0j06tkg3jtqr00qdm0khc.mca
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:2252
  • C:\Windows\system32\browser_broker.exe
    C:\Windows\system32\browser_broker.exe -Embedding
    1⤵
    • Modifies Internet Explorer settings
    PID:3880
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3980
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    PID:1156
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    PID:904

Network

MITRE ATT&CK Enterprise v6

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