General

  • Target

    test123.exe

  • Size

    397KB

  • Sample

    241216-wtk2saxjhw

  • MD5

    ac5a257992599ba6e64e705cff27a671

  • SHA1

    15854c4b735880e0aa384e85f306e4adf67140f5

  • SHA256

    4fba7c66c4fedc46793a324e514b073635a54ab72f9af9685b88c29297168de3

  • SHA512

    9af441aeb9fd4860aa3aa11ceefe68520f79b8e40a9be45f0ae37c2910ff52647c1299975ea1ba77e84d905fd46ab448971b1135b122496ffae55221ac9f3f66

  • SSDEEP

    12288:D92GgykqXIBXPtrJwZvXO/6hVGhGIcVO+HGgIOXK:R7sL

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\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

      test123.exe

    • Size

      397KB

    • MD5

      ac5a257992599ba6e64e705cff27a671

    • SHA1

      15854c4b735880e0aa384e85f306e4adf67140f5

    • SHA256

      4fba7c66c4fedc46793a324e514b073635a54ab72f9af9685b88c29297168de3

    • SHA512

      9af441aeb9fd4860aa3aa11ceefe68520f79b8e40a9be45f0ae37c2910ff52647c1299975ea1ba77e84d905fd46ab448971b1135b122496ffae55221ac9f3f66

    • SSDEEP

      12288:D92GgykqXIBXPtrJwZvXO/6hVGhGIcVO+HGgIOXK:R7sL

    • Chaos

      Ransomware family first seen in June 2021.

    • Chaos Ransomware

    • Chaos family

    • 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.

    • 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 v15

Tasks