Malicious PDF — malware analysis report

Static analysis result for SHA-256 631541766ba7bf90…

MALICIOUS

PDF

19.6 KB Created: 2019-04-30 04:53:53 +01:00 Authoring application: mPDF 5.7 First seen: 2020-08-10
MD5: 91715b1659f0be243408457f3d9a9296 SHA-1: f36bf6f0cb9a3402eda50c4cb1d4606af26e4202 SHA-256: 631541766ba7bf90d5f4b1f4299835ab7a9dda97693ade91b1bd57b66a3bcd0e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. The embedded URLs are likely intended to redirect the user to other documents, potentially leading to further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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://loaminoo.linkpc.net/1095090094098099/The-Other-Elizabeth-Royal-Sagas-2-by-Betty-Younis.pdf In PDF document text
    • http://loaminoo.linkpc.net/1095090099097090/King-James-Aversion-by-Betty-Younis.pdfIn PDF document text
    • http://loaminoo.linkpc.net/4090096092099092/Deadly-Resurrection-Agatha-Dupree-1-by-Betty-Younis.pdfIn PDF document text
    • http://loaminoo.linkpc.net/7092097091090098/To-Give-and-To-Take-Liverpool-Sagas-Book-2-by-Elizabeth-Murphy.pdfIn PDF document text
    • http://loaminoo.linkpc.net/7093091099098/Elizabeth-and-the-Royal-Pony-Based-on-a-True-Story-of-Elizabeth-I-of-England-by-Joan-Holub.pdfIn PDF document text
    • http://loaminoo.linkpc.net/2096098097092093/The-Oxford-Book-of-Royal-Anecdotes-by-Elizabeth-Longford.pdfIn PDF document text
    • http://loaminoo.linkpc.net/3099096093090090/Redemption-Royal-Blood-Chronicles-7-by-Elizabeth-Loraine.pdfIn PDF document text
    • http://loaminoo.linkpc.net/2094092093095094/Bloodline-Royal-Blood-Chronicles-5-by-Elizabeth-Loraine.pdfIn PDF document text
    • http://loaminoo.linkpc.net/1091096094094094/Elizabeth-s-Legacy-Royal-Institute-of-Magic-1-by-Victor-Kloss.pdfIn PDF document text
    • http://loaminoo.linkpc.net/2094091099090097/The-Dark-Prince-Royal-Blood-Chronicles-3-by-Elizabeth-Loraine.pdfIn PDF document text
    • http://loaminoo.linkpc.net/4090093095095093/Five-Gold-Rings-A-Royal-Wedding-Souvenir-Album-from-Queen-Victoria-to-Queen-Elizabeth-II-by-Jane-Roberts.pdfIn PDF document text
    • http://loaminoo.linkpc.net/3095097096096094/Betty-and-Friends-My-Life-at-the-Zoo-by-Betty-White.pdfIn PDF document text
    • http://loaminoo.linkpc.net/1090095092093096097/Betty-and-the-Beast-Betty-and-Veronica-265-by-Dan-Parent.pdfIn PDF document text
    • http://loaminoo.linkpc.net/2098093092090099/His-Royal-Love-Child-Royal-Brides-4-Scorsolini-Princes-2-by-Lucy-Monroe.pdfIn PDF document text
    • http://loaminoo.linkpc.net/4098095097095099/Royal-Flush-Her-Royal-Spyness-Mysteries-3-by-Rhys-Bowen.pdfIn PDF document text
    • http://loaminoo.linkpc.net/3094093095095090/The-Royal-Marriage-By-Royal-Command-4-by-Fiona-Hood-Stewart.pdfIn PDF document text
    • http://loaminoo.linkpc.net/1098091097097096/The-Royal-Treatment-Alaskan-Royal-Family-1-by-MaryJanice-Davidson.pdfIn PDF document text
    • http://loaminoo.linkpc.net/2094091092092095/Her-Royal-Seduction-Royal-Chronicles-of-Denmark-1-by-Kiki-Leach.pdfIn PDF document text
    • http://loaminoo.linkpc.net/5096098095099094/The-Fighting-Cocks-43-Fighter-Squadron-Royal-Flying-Corps-Royal-Air-Force-1916-2009-by-James-Beedle.pdfIn PDF document text
    • http://loaminoo.linkpc.net/1091097092095097095/Focus-On-100-Most-Popular-Women-Memoirists-Joan-Crawford-Bette-Davis-Angelina-Jolie-Betty-White-Olivia-Munn-Elizabeth-Warren-Helen-Keller-Malala-Yousafzai-Jenny-McCarthy-Paris-Hilton-etc-by-Wikipedia-contributors.pdfIn PDF document text