General

  • Target

    updater.exe

  • Size

    4.6MB

  • Sample

    240219-sw2wjafb58

  • MD5

    94e92de578694ea5e9975230e6986423

  • SHA1

    78afcc8db7f7c5ff5ae13bc0716b060e6287bbb3

  • SHA256

    93075f056d16b39f8697a5c25bb258b8a77b60711e8d2741cd537880364c603c

  • SHA512

    468f9642e6ac83807a99a317489e20a89b7f9ffded2a4987e386174348f242c3a34a4d3d107efa484cc964bc6409db8648b92bc444a034081e54f9fe9ebaa53c

  • SSDEEP

    98304:zmx92R40pFplp/g4JAQEz6RTbWs+pPuRPqjlEpWrmgt3BdtiK92:Sx92RXpFp8MAQSsfRwWWrTBOK9

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\Temp1_Ransomware.WannaCry.zip\@[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: 115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn 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

115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn

Targets

    • Target

      updater.exe

    • Size

      4.6MB

    • MD5

      94e92de578694ea5e9975230e6986423

    • SHA1

      78afcc8db7f7c5ff5ae13bc0716b060e6287bbb3

    • SHA256

      93075f056d16b39f8697a5c25bb258b8a77b60711e8d2741cd537880364c603c

    • SHA512

      468f9642e6ac83807a99a317489e20a89b7f9ffded2a4987e386174348f242c3a34a4d3d107efa484cc964bc6409db8648b92bc444a034081e54f9fe9ebaa53c

    • SSDEEP

      98304:zmx92R40pFplp/g4JAQEz6RTbWs+pPuRPqjlEpWrmgt3BdtiK92:Sx92RXpFp8MAQSsfRwWWrTBOK9

    • Wannacry

      WannaCry is a ransomware cryptoworm.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Sets desktop wallpaper using registry

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks