Resubmissions

30-01-2025 19:56

250130-ynna3a1mcv 3

30-01-2025 19:50

250130-ykrt3ssrcj 10

General

  • Target

    http://roblox.com

  • Sample

    250130-ykrt3ssrcj

Malware Config

Targets

    • Chimera

      Ransomware which infects local and network files, often distributed via Dropbox links.

    • Chimera Ransomware Loader DLL

      Drops/unpacks executable file which resembles Chimera's Loader.dll.

    • Chimera family

    • Renames multiple (3280) files with added filename extension

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

    • Downloads MZ/PE file

    • Office macro that triggers on suspicious action

      Office document macro which triggers in special circumstances - often malicious.

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

    • Drops desktop.ini file(s)

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Enterprise v15

Tasks