Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bac2184172af576…

MALICIOUS

PDF

14.1 KB Created: 2019-04-30 05:20:17 +01:00 Authoring application: mPDF 5.7
MD5: 1f635495bb410a050a29e2f54655d7dd SHA-1: eeec59412f2ffaf887fde72ecfa8c76bc156aa04 SHA-256: 0bac2184172af5763bb100e5c7081f75730b0feeb388fabd10a1ea2f51cc2991
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified as a link farm. While the document body is heavily obfuscated, the presence of numerous links suggests an attempt to direct users to external resources, potentially for malicious downloads or phishing. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://xiixmcuin.linkpc.net/6202201201203/The-Phantom-King-The-Kings-2-by-Heather-Killough-Walden.pdf
    • http://xiixmcuin.linkpc.net/5200207201209/The-Vampire-King-The-Kings-1-by-Heather-Killough-Walden.pdf
    • http://xiixmcuin.linkpc.net/2207203201207204/The-Seelie-King-The-Kings-5-by-Heather-Killough-Walden.pdf
    • http://xiixmcuin.linkpc.net/2209202208206204/The-Vampire-King-The-Kings-1-by-Heather-Killough-Walden.pdf
    • http://xiixmcuin.linkpc.net/4200202200206/The-Strip-The-Big-Bad-Wolf-2-by-Heather-Killough-Walden.pdf
    • http://xiixmcuin.linkpc.net/4205205208206204/The-Spell-The-Big-Bad-Wolf-3-by-Heather-Killough-Walden.pdf
    • http://xiixmcuin.linkpc.net/4200204203206208/The-Hunt-The-Big-Bad-Wolf-4-by-Heather-Killough-Walden.pdf
    • http://xiixmcuin.linkpc.net/8203209200200/A-Sinister-Game-by-Heather-Killough-Walden.pdf
    • http://xiixmcuin.linkpc.net/4205205208206206/The-Strip-The-Big-Bad-Wolf-2-by-Heather-Killough-Walden.pdf
    • http://xiixmcuin.linkpc.net/2207207200205206/Redeemer-Syndicate-Novels-1-by-Heather-Killough-Walden.pdf
    • http://xiixmcuin.linkpc.net/1207207207207207/Samael-The-Lost-Angels-5-by-Heather-Killough-Walden.pdf
    • http://xiixmcuin.linkpc.net/2201204200208209/Drake-of-Tanith-The-Chosen-Soul-2-by-Heather-Killough-Walden.pdf
    • http://xiixmcuin.linkpc.net/3203208203208206/Messenger-s-Angel-The-Lost-Angels-2-by-Heather-Killough-Walden.pdf
    • http://xiixmcuin.linkpc.net/3203206204207201/Death-s-Angel-The-Lost-Angels-3-by-Heather-Killough-Walden.pdf
    • http://xiixmcuin.linkpc.net/4209204206208/Hell-Bent-Love-Kills-Professionally-by-Heather-Killough-Walden.pdf
    • http://xiixmcuin.linkpc.net/2202206209202206/Avenger-s-Angel-The-Lost-Angel-1-by-Heather-Killough-Walden.pdf
    • http://xiixmcuin.linkpc.net/1207208204207202/Vampire-Vampire-by-Heather-Killough-Walden.pdf
    • http://xiixmcuin.linkpc.net/1203200207209208/Phantom-Evil-Krewe-of-Hunters-1-by-Heather-Graham.pdf
    • http://xiixmcuin.linkpc.net/4201200207204203/The-Last-King-The-Kings-1-by-Katee-Robert.pdf
    • http://xiixmcuin.linkpc.net/3200204209205207/Mated-To-The-Werewolf-King-The-Kings-1-by-Alena-Des.pdf

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