General

  • Target

    desktop.ini

  • Size

    282B

  • Sample

    240820-yp9wfs1and

  • MD5

    3a37312509712d4e12d27240137ff377

  • SHA1

    30ced927e23b584725cf16351394175a6d2a9577

  • SHA256

    b029393ea7b7cf644fb1c9f984f57c1980077562ee2e15d0ffd049c4c48098d3

  • SHA512

    dbb9abe70f8a781d141a71651a62a3a743c71a75a8305e9d23af92f7307fb639dc4a85499115885e2a781b040cbb7613f582544c2d6de521e588531e9c294b05

Malware Config

Extracted

Path

C:\Users\Admin\Downloads\@[email protected]

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: 13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94 Next, please find an application file named "@[email protected]". 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

13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94

Targets

    • Target

      desktop.ini

    • Size

      282B

    • MD5

      3a37312509712d4e12d27240137ff377

    • SHA1

      30ced927e23b584725cf16351394175a6d2a9577

    • SHA256

      b029393ea7b7cf644fb1c9f984f57c1980077562ee2e15d0ffd049c4c48098d3

    • SHA512

      dbb9abe70f8a781d141a71651a62a3a743c71a75a8305e9d23af92f7307fb639dc4a85499115885e2a781b040cbb7613f582544c2d6de521e588531e9c294b05

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Wannacry

      WannaCry is a ransomware cryptoworm.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Downloads MZ/PE file

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Drops desktop.ini file(s)

    • File and Directory Permissions Modification: Windows File and Directory Permissions Modification

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v15

Tasks