Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f71f852b0178898…

MALICIOUS

PDF

20.6 KB Created: 2019-04-30 04:48:39 +01:00 Authoring application: mPDF 5.7
MD5: d4e7624e2034de339fd553c86de62d25 SHA-1: af4196174ed82193fd70ef9c968255a873fd98be SHA-256: 5f71f852b0178898d8a91ec58e3512f015e3b1886b295d805ce8746f4699b6f5
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, which likely serve to direct users to external content. While the specific intent is unclear due to the benign reputation of the initial URLs, the sheer volume and structure suggest a potential attempt to manipulate search engine rankings or lead users to malicious content disguised as legitimate documents. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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/5098098091092/Elizabeth-Queen-of-the-Seas-by-Lynne-Cox.pdf
    • http://loaminoo.linkpc.net/2095096092093098/The-Temptation-of-Elizabeth-Tudor-Elizabeth-I-Thomas-Seymour-and-the-Making-of-a-Virgin-Queen-by-Elizabeth-Norton.pdf
    • http://loaminoo.linkpc.net/1097098097097093/Counting-One-s-Blessings-The-Selected-Letters-of-Queen-Elizabeth-the-Queen-Mother-by-William-Shawcross.pdf
    • http://loaminoo.linkpc.net/4090093095095093/Five-Gold-Rings-A-Royal-Wedding-Souvenir-Album-from-Queen-Victoria-to-Queen-Elizabeth-II-by-Jane-Roberts.pdf
    • http://loaminoo.linkpc.net/4092097091091096/Queen-Elizabeth-s-Daughter-A-Novel-of-Elizabeth-I-by-Anne-Clinard-Barnhill.pdf
    • http://loaminoo.linkpc.net/3093099095098091/Elizabeth-the-Queen-The-Lady-Elizabeth-by-Alison-Weir.pdf
    • http://loaminoo.linkpc.net/8098090098099/Queen-Elizabeth-I-by-J-E-Neale.pdf
    • http://loaminoo.linkpc.net/2095099092098091/Queen-s-Gambit-by-Elizabeth-Fremantle.pdf
    • http://loaminoo.linkpc.net/8092097094097095/Queen-Victoria-by-Elizabeth-Longford.pdf
    • http://loaminoo.linkpc.net/4099096090090091/Queen-of-the-Loch-by-Elizabeth-Delana-Rosa.pdf
    • http://loaminoo.linkpc.net/3094090091094097/Elizabeth-of-York-The-Forgotten-Tudor-Queen-by-Amy-Licence.pdf
    • http://loaminoo.linkpc.net/3093099095098098/Queen-Elizabeth-and-the-Spanish-Armada-by-Frances-Winwar.pdf
    • http://loaminoo.linkpc.net/4094096094092098/Queen-Elizabeth-s-Wardrobe-Unlock-d-by-Janet-Arnold.pdf
    • http://loaminoo.linkpc.net/3095099093090092/The-Hollow-Queen-Symphony-of-Ages-8-by-Elizabeth-Haydon.pdf
    • http://loaminoo.linkpc.net/2093090097094094/Ashes-of-Britannia-Warrior-Queen-3-by-Haley-Elizabeth-Garwood.pdf
    • http://loaminoo.linkpc.net/9096090099/Elizabeth-the-Queen-The-Life-of-a-Modern-Monarch-by-Sally-Bedell-Smith.pdf
    • http://loaminoo.linkpc.net/3093099092092094/Plantagenet-Princess-Tudor-Queen-The-Story-of-Elizabeth-of-York-by-Samantha-Wilcoxson.pdf
    • http://loaminoo.linkpc.net/1091091093098098092/Calendar-of-the-Patent-and-Close-Rolls-of-Chancery-in-Ireland-Vol-2-From-the-18th-to-the-45th-of-Queen-Elizabeth-by-James-Morrin.pdf
    • http://loaminoo.linkpc.net/7091099099092094/Agents-of-Terror-Queen-Elizabeth-1st-amp-St-Edmund-Campion-Religious-Freedom-or-Government-Control-Which-is-the-terrorist-by-Sarita-Mirador.pdf
    • http://loaminoo.linkpc.net/8091095090090097/Certaine-Sermons-or-Homilies-Appointed-to-Be-Read-in-Churches-in-the-Time-of-Queen-Elizabeth-I-1547-1571-by-Church-of-England.pdf