Resubmissions

23-08-2024 20:52

240823-znppkawalc 10

23-08-2024 11:05

240823-m66dtasgqk 10

22-08-2024 19:52

240822-yllpfsxdrj 10

General

  • Target

    MBSetup.exe

  • Size

    2.5MB

  • Sample

    240823-m66dtasgqk

  • MD5

    d21bf3852bb27fb6f5459d2cf2bcd51c

  • SHA1

    e59309bbe58c9584517e4bb50ff499dffb29d7b0

  • SHA256

    de9c4e8b4b0c756eee4e39221c1e4e0e11c2e67effb828e27de3c4b4470ccff2

  • SHA512

    17bc7740f131a1d4e84fd7e4ab5e1ce510660f5046340ef6d09ef99c56c88da2b6be3ae5c5ddb7213841c506eaec147c65abba1a7a2a8eb4fb8f6329bbaa03d1

  • SSDEEP

    49152:FMofPlPU+QG/rOVcVz6StQyfvE0Z3R0nxiIq2dsTDwfw1Y:FMslc+QGjuTKtQRq261Y

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: 12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw 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

12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw

Targets

    • Target

      MBSetup.exe

    • Size

      2.5MB

    • MD5

      d21bf3852bb27fb6f5459d2cf2bcd51c

    • SHA1

      e59309bbe58c9584517e4bb50ff499dffb29d7b0

    • SHA256

      de9c4e8b4b0c756eee4e39221c1e4e0e11c2e67effb828e27de3c4b4470ccff2

    • SHA512

      17bc7740f131a1d4e84fd7e4ab5e1ce510660f5046340ef6d09ef99c56c88da2b6be3ae5c5ddb7213841c506eaec147c65abba1a7a2a8eb4fb8f6329bbaa03d1

    • SSDEEP

      49152:FMofPlPU+QG/rOVcVz6StQyfvE0Z3R0nxiIq2dsTDwfw1Y:FMslc+QGjuTKtQRq261Y

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Wannacry

      WannaCry is a ransomware cryptoworm.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Drops file in Drivers directory

    • Modifies RDP port number used by Windows

    • Sets service image path in registry

    • Checks BIOS information in registry

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

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

    • Drops startup file

    • Impair Defenses: Safe Mode Boot

    • Modifies file permissions

    • Reads user/profile data of web browsers

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

    • Downloads MZ/PE file

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

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

    • Legitimate hosting services abused for malware hosting/C2

    • Boot or Logon Autostart Execution: Authentication Package

      Suspicious Windows Authentication Registry Modification.

    • Checks computer location settings

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

    • Drops file in System32 directory

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Modifies WinLogon for persistence

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v15

Tasks