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General

  • Target

    2023-05-08_ffdefa247d3bb4429558e8b334f4f2ae_wannacry.exe

  • Size

    341KB

  • Sample

    230509-drhjrseb25

  • MD5

    ffdefa247d3bb4429558e8b334f4f2ae

  • SHA1

    af9f3af31889b55552a5721244184d0a115be74c

  • SHA256

    542c157186bae766dd3e2df424e9c25251d71086b99cc9df121bc9bf50462688

  • SHA512

    0f4b5534179a690bbaa5333fbf4b11e881d2b60c37f3ade95ebf6b481bbf58b76a17bf4945883babadd8b5b9681c4710ddb2ab4380cd27cf73430e8609d0b9d7

  • SSDEEP

    6144:Drbwc9N+fwvDIK9LpXXXXXXXXXXXXXXXXQGuFFM5:dWwbLpXXXXXXXXXXXXXXXX5uw5

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad\read_it.txt

Family

chaos

Ransom Note
----> Chaos is multi language ransomware. Translate your note to any language <---- All of your files have been encrypted Your computer was infected with a ransomware virus. Your files have been encrypted and you won't be able to decrypt them without our help.What can I do to get my files back?You can buy our special decryption software, this software will allow you to recover all of your data and remove the ransomware from your computer.The price for the software is $1,500. Payment can be made in Bitcoin only. How do I pay, where do I get Bitcoin? Purchasing Bitcoin varies from country to country, you are best advised to do a quick google search yourself to find out how to buy Bitcoin. Many of our customers have reported these sites to be fast and reliable: Coinmama - hxxps://www.coinmama.com Bitpanda - hxxps://www.bitpanda.com Payment informationAmount: 0.1473766 BTC Bitcoin Address: bc1qlnzcep4l4ac0ttdrq7awxev9ehu465f2vpt9x0

Targets

    • Target

      2023-05-08_ffdefa247d3bb4429558e8b334f4f2ae_wannacry.exe

    • Size

      341KB

    • MD5

      ffdefa247d3bb4429558e8b334f4f2ae

    • SHA1

      af9f3af31889b55552a5721244184d0a115be74c

    • SHA256

      542c157186bae766dd3e2df424e9c25251d71086b99cc9df121bc9bf50462688

    • SHA512

      0f4b5534179a690bbaa5333fbf4b11e881d2b60c37f3ade95ebf6b481bbf58b76a17bf4945883babadd8b5b9681c4710ddb2ab4380cd27cf73430e8609d0b9d7

    • SSDEEP

      6144:Drbwc9N+fwvDIK9LpXXXXXXXXXXXXXXXXQGuFFM5:dWwbLpXXXXXXXXXXXXXXXX5uw5

    • Chaos

      Ransomware family first seen in June 2021.

    • Chaos Ransomware

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies boot configuration data using bcdedit

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

    • Disables Task Manager via registry modification

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Checks computer location settings

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

    • 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.

    • Drops desktop.ini file(s)

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v6

Tasks