Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e403076d27c9030…

MALICIOUS

PDF

16.9 KB Created: 2019-05-01 19:08:55 +01:00 Authoring application: mPDF 5.7
MD5: f40087fee57bc7f4b3cb2c0c12560fc6 SHA-1: 41a6df31d8f3455162b27740061877124841e6b6 SHA-256: 1e403076d27c9030bda6a8d141352d63b6356edabc6d69c9bc3f4c75aae9c5a1
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 to external websites, a technique often used for SEO manipulation or to redirect users to malicious content. The ML classifier strongly indicated maliciousness. While the document body was unreadable, the PDF structure and embedded URLs suggest a lure to a link farm. No scripts were extracted from this sample.

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/6205206202209203/Summary-of-Barkskins-by-Annie-Proulx-Includes-Analysis-by-Instaread-Summaries.pdf
    • http://xiixmcuin.linkpc.net/6205206202208207/Cider-by-Annie-Proulx.pdf
    • http://xiixmcuin.linkpc.net/1203207208209207/Postcards-by-Annie-Proulx.pdf
    • http://xiixmcuin.linkpc.net/6208202200200/Accordion-Crimes-by-Annie-Proulx.pdf
    • http://xiixmcuin.linkpc.net/2203205201203/Close-Range-by-Annie-Proulx.pdf
    • http://xiixmcuin.linkpc.net/3200205201203206/Brokeback-Mountain-by-Annie-Proulx.pdf
    • http://xiixmcuin.linkpc.net/6205206203208208/Red-Desert-History-of-a-Place-by-Annie-Proulx.pdf
    • http://xiixmcuin.linkpc.net/1203205204202200/Bad-Dirt-Wyoming-Stories-2-by-Annie-Proulx.pdf
    • http://xiixmcuin.linkpc.net/6205206202208205/Understanding-Annie-Proulx-by-Karen-L-Rood.pdf
    • http://xiixmcuin.linkpc.net/2209209200200203/Brokeback-Mountain-Story-to-Screenplay-by-Annie-Proulx.pdf
    • http://xiixmcuin.linkpc.net/6205206202209201/The-Geographical-Imagination-of-Annie-Proulx-Rethinking-Regionalism-by-Alex-Hunt.pdf
    • http://xiixmcuin.linkpc.net/6205206204202205/Plan-and-Make-Your-Own-Fences-amp-Gates-Walkways-Walls-amp-Drives-by-Annie-Proulx.pdf
    • http://xiixmcuin.linkpc.net/6205206202209205/Annie-Proulx-s-Brokeback-Mountain-and-Postcards-A-Reader-s-Guide-by-Mark-Asquith.pdf
    • http://xiixmcuin.linkpc.net/6205206204207202/The-complete-dairy-foods-cookbook-How-to-make-everything-from-cheese-to-custard-in-your-own-kitchen-by-E-Annie-Proulx.pdf
    • http://xiixmcuin.linkpc.net/6205206203209202/Close-Range-Wyoming-Stories-by-E-Annie-Proulx-l-Summary-amp-Study-Guide-by-BookRags.pdf
    • http://xiixmcuin.linkpc.net/1204203203206200/Annie-Duke-How-I-Raised-Folded-Bluffed-Flirted-Cursed-and-Won-Millions-at-the-World-Series-of-Poker-by-Annie-Duke.pdf
    • http://xiixmcuin.linkpc.net/3200206201209205/Three-by-Annie-Dillard-Pilgrim-at-Tinker-Creek-An-American-Childhood-The-Writing-Life-by-Annie-Dillard.pdf
    • http://xiixmcuin.linkpc.net/4208208203207/Annie-Annie-by-Molly-Cone.pdf
    • http://xiixmcuin.linkpc.net/9200205208201/Mormon-Mother-An-Autobiography-by-Annie-Clark-Tanner-by-Annie-C-Tanner.pdf
    • http://xiixmcuin.linkpc.net/6205206203209206/Bad-Luck-by-Suzanne-Proulx.pdf
    • http://xiixmcuin.linkpc.net/6205206202209201/The-Ge

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