Overview

overview

10

Static

static

Widows11Update.exe

windows10-2004-x64

10

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General

  • Target

    Widows11Update.exe

  • Size

    3MB

  • Sample

    230120-jxjxnsac32

  • MD5

    9b0091500c0ebfea2c4e2bad322bec57

  • SHA1

    f4eb84034b244a847efb5c0002360a400a0815f0

  • SHA256

    9a32d238e703ab4d481abb14417517a4b7f3ee860729aed21a445aa71ed0094b

  • SHA512

    cabebcdde955669da6488526926069822a192e17832cdac36e14ef6d4437eaad8976744329b78115afc0650f6cb1eb5b354c92aff68b3fbfb6526ff27942c7db

  • SSDEEP

    98304:7uWB26ODixd60A76oBUEmlflIPsnuUpmMUaal4mE4anVIX:7R26ODadZg6fd2ZUpfUaaRE4aVIX

Score
10/10
wannacrydiscoverypersistenceransomwarespywarestealerworm

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\@Please_Read_Me@.txt

Family

wannacry

Ransom Note
Q: What's wrong with my files? A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted. If you follow our instructions, we guarantee that you can decrypt all your files quickly and safely! Let's start decrypting! Q: What do I do? A: First, you need to pay service fees for the decryption. Please send $300 worth of bitcoin to this bitcoin address: 12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw Next, please find an application file named "@WanaDecryptor@.exe". It is the decrypt software. Run and follow the instructions! (You may need to disable your antivirus for a while.) Q: How can I trust? A: Don't worry about decryption. We will decrypt your files surely because nobody will trust us if we cheat users. * If you need our assistance, send a message by clicking <Contact Us> on the decryptor window. �
Wallets

12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw

Targets

    • Target

      Widows11Update.exe

    • Size

      3MB

    • MD5

      9b0091500c0ebfea2c4e2bad322bec57

    • SHA1

      f4eb84034b244a847efb5c0002360a400a0815f0

    • SHA256

      9a32d238e703ab4d481abb14417517a4b7f3ee860729aed21a445aa71ed0094b

    • SHA512

      cabebcdde955669da6488526926069822a192e17832cdac36e14ef6d4437eaad8976744329b78115afc0650f6cb1eb5b354c92aff68b3fbfb6526ff27942c7db

    • SSDEEP

      98304:7uWB26ODixd60A76oBUEmlflIPsnuUpmMUaal4mE4anVIX:7R26ODadZg6fd2ZUpfUaaRE4aVIX

    Score
    10/10
    wannacrydiscoverypersistenceransomwarespywarestealerworm

    • Wannacry

      WannaCry is a ransomware cryptoworm.

      ransomwarewormwannacry

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomware

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

      ransomware

    • Checks computer location settings

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

    • Drops startup file

    • Loads dropped DLL

    • Modifies file permissions

      discovery

    • 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

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1

MITRE ATT&CK Matrix

Collection

Command and Control

    Credential Access

    Defense Evasion

    Discovery

    Execution

      Exfiltration

        Impact

        Initial Access

          Lateral Movement

            Persistence

            Privilege Escalation

              Tasks