General

  • Target

    ss.zip

  • Size

    69.7MB

  • Sample

    240809-rjrpcsvhjd

  • MD5

    49d8b2d6c2c1fc02ac64253819c63118

  • SHA1

    2caf57e129d4b6eaf31397147057029e06bc929a

  • SHA256

    38098b2468679ed5699bb7de9e2723fc6f02886414d031f088baf286e48ba9a3

  • SHA512

    5984e6056f155bb7ff1690dbf545cdf17187d691f87708bf160f3e768a14f9aed0fd787f877c28f429489c80cada99d00578bf50706f8b01e5d3550c8ed47a2a

  • SSDEEP

    1572864:iFzsiSaXQ5uMgeysjwdFTrzcI5OrJDcoGTz+mEYZkhj:sb+uMgePjqrzcI5cJDclzAYGj

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

      ss.zip

    • Size

      69.7MB

    • MD5

      49d8b2d6c2c1fc02ac64253819c63118

    • SHA1

      2caf57e129d4b6eaf31397147057029e06bc929a

    • SHA256

      38098b2468679ed5699bb7de9e2723fc6f02886414d031f088baf286e48ba9a3

    • SHA512

      5984e6056f155bb7ff1690dbf545cdf17187d691f87708bf160f3e768a14f9aed0fd787f877c28f429489c80cada99d00578bf50706f8b01e5d3550c8ed47a2a

    • SSDEEP

      1572864:iFzsiSaXQ5uMgeysjwdFTrzcI5OrJDcoGTz+mEYZkhj:sb+uMgePjqrzcI5cJDclzAYGj

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Wannacry

      WannaCry is a ransomware cryptoworm.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • 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.

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

    • Legitimate hosting services abused for malware hosting/C2

    • Detected potential entity reuse from brand amazon.

    • Detected potential entity reuse from brand google.

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v15

Tasks