Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f85f0b05bd7a132…

MALICIOUS

PDF

22.5 KB Created: 2019-05-02 18:46:13 +01:00 Authoring application: mPDF 5.7
MD5: cf8e84534ba523bb90fe070721a6b55d SHA-1: 564dce298d3c94aa6bcd0c6f30222f13d094d67f SHA-256: 9f85f0b05bd7a1324c41942f98f4d537976de8e6c60ff7356f2f78b97d947b8e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on the duckdns.org domain. The ML classifier also flagged this PDF as malicious with high confidence. The primary attack pattern involves tricking the user into clicking these links, which likely lead to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9901

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://cmeinasaoo.duckdns.org/1b29b23b27b29b25/Star-Wars-Roleplaying-Game-Saga-Edition-Core-Rulebook-Star-Wars-RPG-D20-by-Christopher-Perkins.pdf
    • http://cmeinasaoo.duckdns.org/3b23b29b27b21b20/Star-Wars-Vol-2-Showdown-on-the-Smuggler-s-Moon-Star-Wars-2-by-Jason-Aaron.pdf
    • http://cmeinasaoo.duckdns.org/8b23b22b20b29b28/Star-Wars-Rebels-The-Secret-Jedi-The-Adventures-of-Kanan-Jarrus-Rebel-Leader-by-Star-Wars-Rebels.pdf
    • http://cmeinasaoo.duckdns.org/6b25b27b29b29/Star-by-Star-Star-Wars-The-New-Jedi-Order-9-by-Troy-Denning.pdf
    • http://cmeinasaoo.duckdns.org/3b23b29b21b23b21/Star-Wars-Vector-Vol-1-Star-Wars-Vector-1-by-John-Jackson-Miller.pdf
    • http://cmeinasaoo.duckdns.org/7b24b29b23b24b24/Star-Wars-Choose-Your-Destiny-Book-1-A-Han-amp-Chewie-Adventure-Star-Wars-Choose-Your-Destiny-by-Elsa-Charretier.pdf
    • http://cmeinasaoo.duckdns.org/8b21b21b20b21b21/Star-Wars-Attack-of-the-Clones-by-Christopher-Nicholas.pdf
    • http://cmeinasaoo.duckdns.org/3b23b29b27b23b26/Star-Wars-Knights-of-the-Old-Republic-Vol-4-Daze-of-Hate-Knights-of-Suffering-Star-Wars-Knights-of-the-Old-Republic-4-by-John-Jackson-Miller.pdf
    • http://cmeinasaoo.duckdns.org/3b23b29b21b22b27/Star-Wars-Knights-of-the-Old-Republic-Vol-6-Vindication-Star-Wars-Knights-of-the-Old-Republic-6-by-John-Jackson-Miller.pdf
    • http://cmeinasaoo.duckdns.org/2b25b26b22/Star-Wars-Darth-Vader-Vol-2-Shadows-and-Secrets-Star-Wars-Darth-Vader-2-by-Kieron-Gillen.pdf
    • http://cmeinasaoo.duckdns.org/2b29b24b27b29b29/William-Shakespeare-s-Jedi-the-Last-Star-Wars-Part-the-Eighth-William-Shakespeare-s-Star-Wars-8-by-Ian-Doescher.pdf
    • http://cmeinasaoo.duckdns.org/8b29b22b28b24/Wild-Space-Star-Wars-The-Clone-Wars-2-by-Karen-Miller.pdf
    • http://cmeinasaoo.duckdns.org/3b23b29b23b22b21/Stealth-Star-Wars-Clone-Wars-Gambit-1-by-Karen-Miller.pdf
    • http://cmeinasaoo.duckdns.org/3b24b20b20b27b21/Star-Wars-Clone-Wars-Volume-7-When-They-Were-Brothers-by-W-Haden-Blackman.pdf
    • http://cmeinasaoo.duckdns.org/3b23b29b23b23b24/Slave-Ship-Star-Wars-The-Bounty-Hunter-Wars-2-by-K-W-Jeter.pdf
    • http://cmeinasaoo.duckdns.org/3b24b20b20b25b28/Klutz-Star-Wars-The-Clone-Wars-by-Bonnie-Burton.pdf
    • http://cmeinasaoo.duckdns.org/3b23b29b27b23b21/Star-Wars-The-Empire-Strikes-Back---The-Special-Edition-by-Archie-Goodwin.pdf
    • http://cmeinasaoo.duckdns.org/5b24b20b28b21/The-Followers-Star-Wars-Jedi-Apprentice-20-Special-Edition-2-by-Jude-Watson.pdf
    • http://cmeinasaoo.duckdns.org/3b20b23b22b26b23/The-Eugenics-Wars-Vol-2-The-Rise-and-Fall-of-Khan-Noonien-Singh-Star-Trek-The-Eugenics-Wars-2-by-Greg-Cox.pdf
    • http://cmeinasaoo.duckdns.org/3b24b20b20b28b27/The-Star-Wars-by-J-W-Rinzler.pdf
    • http://cmeinasaoo.duckdns.org/7b24b29b23b24b24/Star-Wars-Choose-Your-Destiny-Book-1-A-Han-a