Resubmissions

30-12-2024 21:01

241230-zt81ds1nbt 10

30-12-2024 20:58

241230-zsd4maykhl 7

General

  • Target

    https://cdn.discordapp.com/attachments/1248930730034073713/1323187617851904082/INFECTED_decrypted_first_payload_try_2_INFECTED_pass_infected50.7z?ex=677399ff&is=6772487f&hm=ce2e331cc5a309666e39a0392308f63a8218507b23197b9f3c4f6f7971246886&

  • Sample

    241230-zt81ds1nbt

Malware Config

Targets

    • Target

      https://cdn.discordapp.com/attachments/1248930730034073713/1323187617851904082/INFECTED_decrypted_first_payload_try_2_INFECTED_pass_infected50.7z?ex=677399ff&is=6772487f&hm=ce2e331cc5a309666e39a0392308f63a8218507b23197b9f3c4f6f7971246886&

    • Dharma

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

    • Dharma family

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Renames multiple (578) files with added filename extension

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

    • Downloads MZ/PE file

    • A potential corporate email address has been identified in the URL: [email protected]

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • 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)

    • Legitimate hosting services abused for malware hosting/C2

    • Network Share Discovery

      Attempt to gather information on host network.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks