Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5621a3176a411d0…

MALICIOUS

PDF

22.5 KB Created: 2019-04-30 03:30:42 +01:00 Authoring application: mPDF 5.7
MD5: 143305f9966b6605f6cb1e9037529866 SHA-1: c2ffe88453a2051ec5c7731ea16cadcebdca4358 SHA-256: b5621a3176a411d03793d5223cec1a002979d9aeb90e38245b88bc059dac7f2c
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link farm with 27 external links, primarily pointing to PDFs with titles related to eating disorders. This suggests a social engineering tactic to lure users to potentially malicious content hosted on the `xiixmcuin.linkpc.net` domain. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9903

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/3207204206209207/Ink-in-Water-An-Illustrated-Memoir-Or-How-I-Kicked-Anorexia-s-Ass-and-Embraced-Body-Positivity-by-Lacy-J-Davis.pdf
    • http://xiixmcuin.linkpc.net/3204202202202/Wasted-A-Memoir-of-Anorexia-and-Bulimia-by-Marya-Hornbacher.pdf
    • http://xiixmcuin.linkpc.net/4209203208207203/An-Apple-a-Day-A-Memoir-of-Love-and-Recovery-from-Anorexia-by-Emma-Woolf.pdf
    • http://xiixmcuin.linkpc.net/1201201201206200/Wasted-Updated-Edition-A-Memoir-of-Anorexia-and-Bulimia-by-Marya-Hornbacher.pdf
    • http://xiixmcuin.linkpc.net/4209204201201209/Battle-for-Control-A-Memoir-of-Anorexia-Exercise-Bulimia-and-Other-Compulsions-by-Doug-Erlandson.pdf
    • http://xiixmcuin.linkpc.net/1201207204203205205/ADHD-Hyper-Mind-Hyper-Body-My-life-growing-up-with-ADHD-How-I-ve-risen-above-it-learned-some-tricks-to-control-it-and-embraced-what-it-s-meant-for-me-by-Martin-Zahl.pdf
    • http://xiixmcuin.linkpc.net/4203208201201207/Water-Dance-With-Me-by-S-J-Davis.pdf
    • http://xiixmcuin.linkpc.net/5200204208209206/Hunger-A-Memoir-of-My-Body-by-Roxane-Gay.pdf
    • http://xiixmcuin.linkpc.net/4204208202209206/A-Body-in-the-Bathhouse-Marcus-Didius-Falco-13-by-Lindsey-Davis.pdf
    • http://xiixmcuin.linkpc.net/1206201203206204/Under-Water-A-Natural-Disaster-Memoir-by-Owen-Grimenstein.pdf
    • http://xiixmcuin.linkpc.net/2208201206200209/Forgetting-to-Be-Afraid-A-Memoir-by-Wendy-Davis.pdf
    • http://xiixmcuin.linkpc.net/1204209208203/When-Smoke-Ran-Like-Water-Tales-Of-Environmental-Deception-And-The-Battle-Against-Pollution-by-Devra-Davis.pdf
    • http://xiixmcuin.linkpc.net/4207205209201209/Like-Sodium-in-Water-A-memoir-of-home-and-heartache-by-Hayden-Eastwood.pdf
    • http://xiixmcuin.linkpc.net/5205209202/The-Fact-of-a-Body-A-Murder-and-a-Memoir-by-Alexandria-Marzano-Lesnevich.pdf
    • http://xiixmcuin.linkpc.net/4206206208206206/A-Kiss-Before-You-Go-An-Illustrated-Memoir-of-Love-and-Loss-by-Danny-Gregory.pdf
    • http://xiixmcuin.linkpc.net/1205209206206207/Dwarf-A-Memoir-of-How-One-Woman-Fought-for-a-Body-and-a-Life-She-Was-Never-Supposed-to-Have-by-Tiffanie-DiDonato.pdf
    • http://xiixmcuin.linkpc.net/8205203204200207/The-Africa-Diaries-An-Illustrated-Memoir-of-Life-in-the-Bush-by-Dereck-Joubert.pdf
    • http://xiixmcuin.linkpc.net/8207202203206/Harlot-s-Sauce-A-Memoir-of-Food-Family-Love-Loss-and-Greece-by-Patricia-V-Davis.pdf
    • http://xiixmcuin.linkpc.net/4204205208203204/Crossing-the-Water-Eighteen-Months-on-an-Island-Working-With-Troubled-Boys----A-Teacher-s-Memoir-by-Daniel-Robb.pdf
    • http://xiixmcuin.linkpc.net/1200208201204200203/Saline-Water-Processing-Desalination-And-Treatment-Of-Seawater-Brackish-Water-And-Industrial-Waste-Water-by-Hans-Gunter-Heitmann.pdf
    • http://xiixmcuin.linkpc.net

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