Malicious PDF — malware analysis report

Static analysis result for SHA-256 120751ad2a34249f…

MALICIOUS

PDF

17.4 KB Created: 2019-05-07 03:29:27 +01:00 Authoring application: mPDF 5.7
MD5: 40425c1cc5dcdc261bed8f74b4084d98 SHA-1: cfd3c5bb01487fabf132c88e872fcd1ee7ce5c05 SHA-256: 120751ad2a34249f0ca66928a9a3604cd752b1a96a75e91e9d6f15d72dfdf28e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links 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. While the specific intent beyond link farming is unclear, the sheer volume of links suggests a malicious purpose.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/6201205203202201/Facts-Of-Life-by-Pippo-Lionni.pdf
    • http://xiixmcuin.linkpc.net/1201200206200207200/Pippi-Pack-2-Books-quot-Pippi-Longstocking-quot-and-quot-Pippi-Goes-on-Board-quot-by-Astrid-Lindgren.pdf
    • http://xiixmcuin.linkpc.net/6201205202200202/Leo-Lionni-A-Passion-for-Creativity-by-Leo-Lionni.pdf
    • http://xiixmcuin.linkpc.net/6201205202200204/Leo-Lionni-s-Little-Mice-Tales-by-Leo-Lionni.pdf
    • http://xiixmcuin.linkpc.net/4207206206201204/The-Facts-of-Life-by-R-D-Laing.pdf
    • http://xiixmcuin.linkpc.net/7202203200208205/Patient-Drug-Facts-2004-Published-by-Facts-and-Comparisons-by-Timothy-R-Covington.pdf
    • http://xiixmcuin.linkpc.net/7201207207206205/Random-Facts-1869-Facts-To-Make-You-Want-To-Learn-More-by-Nazar-Shevchenko.pdf
    • http://xiixmcuin.linkpc.net/7203208203201207/Invincible-Vol-5-The-Facts-of-Life-by-Robert-Kirkman.pdf
    • http://xiixmcuin.linkpc.net/7207200201202208/Colorless-Tsukuru-Tazaki-and-His-Years-of-Pilgrimage---101-Book-Facts-1-Fun-Facts-amp-Trivia-Tidbits-by-G-Whiz.pdf
    • http://xiixmcuin.linkpc.net/7205204205203200/Americanah-by-Chimamanda-Ngozi-Adichie-Top-50-Facts-Coutndown-by-Top-50-Facts.pdf
    • http://xiixmcuin.linkpc.net/8206202207208205/Creation-Facts-Of-Life-Revisited-Pb-by-Gary-E-Parker.pdf
    • http://xiixmcuin.linkpc.net/1209209207202203/The-Facts-of-Life-and-Other-Dirty-Jokes-by-Willie-Nelson.pdf
    • http://xiixmcuin.linkpc.net/5202200202205204/The-New-Corporate-Facts-of-Life-Rethink-Your-Business-to-Transform-Today-s-Challeneges-Into-Tomorrow-s-Profits-by-Diana-Rivenburgh.pdf
    • http://xiixmcuin.linkpc.net/3201208209208209/Animal-Butts-amp-Facts-Too-Fun-Animal-Books-for-Kids-With-Facts-amp-Incredible-Photos-Exploring-Our-Incredible-World-Children-s-Book-Series-by-Mark-Smith.pdf
    • http://xiixmcuin.linkpc.net/1201200205209201207/Pippi-On-The-Run-by-Astrid-Lindgren.pdf
    • http://xiixmcuin.linkpc.net/1201200205209207208/Pippi-Longstocking-4-by-Astrid-Lindgren.pdf
    • http://xiixmcuin.linkpc.net/2203205208201201/Pippi-Longstocking-by-Astrid-Lindgren.pdf
    • http://xiixmcuin.linkpc.net/4207204201201/Pippi-Goes-on-Board-by-Astrid-Lindgren.pdf
    • http://xiixmcuin.linkpc.net/3202204206209/Pippi-Longstocking-by-Astrid-Lindgren.pdf
    • http://xiixmcuin.linkpc.net/2205205203206203/Do-You-Know-Pippi-Longstocking-by-Astrid-Lindgren.pdf

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