Resubmissions

18-09-2024 06:39

240918-he326axgpj 10

18-09-2024 03:00

240918-dhc8pazdmm 10

General

  • Target

    https://github.com/Da2dalus/The-MALWARE-Repo

  • Sample

    240918-he326axgpj

Malware Config

Targets

    • BadRabbit

      Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.

    • Deletes NTFS Change Journal

      The USN change journal is a persistent log of all changes made to local files used by Windows Server systems.

    • Dharma

      Dharma is a ransomware that uses security software installation to hide malicious activities.

    • Mimikatz

      mimikatz is an open source tool to dump credentials on Windows.

    • Clears Windows event logs

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Renames multiple (52) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • mimikatz is an open source tool to dump credentials on Windows

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

    • 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)

    • Enumerates connected drives

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

    • Legitimate hosting services abused for malware hosting/C2

    • Mark of the Web detected: This indicates that the page was originally saved or cloned.

    • Checks system information in the registry

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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks