Malicious PDF — malware analysis report

Static analysis result for SHA-256 681c6028f8cf32b2…

MALICIOUS

PDF

32.3 KB Created: 2019-11-23 20:10:24 +03:00 Authoring application: TeX (via pdfTeX-0.13d)
MD5: 0973c007bb58af2097135ab3188aa9cc SHA-1: c18756ad9a1347dcb56e2a0b39cc5715f04a87b8 SHA-256: 681c6028f8cf32b20f6bc07aea8d30922b3232bead2c8428c2bd64327d355c7e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1190 Exploit Public-Facing Application

The PDF contains a large number of embedded links pointing to external PDF files on the domain 'gorillawalker.com'. This behavior is indicative of a link farm, likely intended for SEO manipulation or to distribute potentially malicious content. The ML classifier also flagged this PDF as malicious, supporting the suspicious nature of the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8529

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://www.gorillawalker.com/the-holly-tree-inn-and-a-christmas-tree-classic-reprint.pdf
    • http://www.gorillawalker.com/twelve-steps-to-spiritual-wholeness.pdf
    • http://www.gorillawalker.com/asperger-syndrome-and-adolescence-helping-preteens-and-teens-get-ready.pdf
    • http://www.gorillawalker.com/hip-hop-world-a-groundwork-guide-groundwork-guides-kindle-edition.pdf
    • http://www.gorillawalker.com/wilsberg-ein-bisschen-mord-muss-sein-wilsbergs-19-fall-german.pdf
    • http://www.gorillawalker.com/new-orleans-a-picture-book-to-remember-her-by.pdf
    • http://www.gorillawalker.com/the-women-of-harrington-hall-a-novel.pdf
    • http://www.gorillawalker.com/shari-ah-governance-in-islamic-banks-edinburgh-guides-to-islamic.pdf
    • http://www.gorillawalker.com/current-issues-in-juvenile-law-program-material-april-may-1981.pdf
    • http://www.gorillawalker.com/management-of-ems.pdf
    • http://www.gorillawalker.com/chasing-lance-through-france-on-a-ride-of-a-lifetime.pdf
    • http://www.gorillawalker.com/who-the-devil-made-it-conversations-with.pdf
    • http://www.gorillawalker.com/steven-ehrlich-a-dynamic-serenity-house-design.pdf
    • http://www.gorillawalker.com/georgian-house-style-an-architectural-and-interior-design-source-book.pdf
    • http://www.gorillawalker.com/the-rose-girls.pdf
    • http://www.gorillawalker.com/alaska-coloring-book-maya-filippo-coloring-books.pdf
    • http://www.gorillawalker.com/progress-in-inverse-spectral-geometry-trends-in-mathematics.pdf
    • http://www.gorillawalker.com/organizing-and-managing-classroom-learning-communities.pdf
    • http://www.gorillawalker.com/biologia-biology-spanish-edition.pdf
    • http://www.gorillawalker.com/a-bibliography-of-studies-and-translations-of-modern-chinese-literature.pdf
    • http://www.gorillawalker.com/spinoza-s-modernity-mendelssohn-lessing-and-heine.pdf
    • http://www.gorillawalker.com/at-sea-with-my-writing-a-novelist-cruises-to-book.pdf
    • http://www.gorillawalker.com/indonesia-hildebrand-s-travel-guide.pdf
    • http://www.gorillawalker.com/jean-cocteau-french-film-directors-mup.pdf
    • http://www.gorillawalker.com/facing-it-aids-diaries-and-the-death-of-the-author.pdf
    • http://www.gorillawalker.com/the-gold-cell-the-knopf-poetry-series.pdf
    • http://www.gorillawalker.com/breeding-the-queen-sex-slaves-of-the-amazon-sex-slaves.pdf
    • http://www.gorillawalker.com/the-worst-times-are-the-best-times.pdf
    • http://www.gorillawalker.com/baseball-hacks-tips-tools-for-analyzing-and-winning-with-statistics.pdf
    • http://www.gorillawalker.com/finite-mathematics-with-applications.pdf
    • http://www.gorillawalker.com/die-ms-hat-es-nicht-leicht-mit-uns-ein-weiteres.pdf
    • http://www.gorillawalker.com/amnesia-labyrinth-vol-1.pdf
    • http://www.gorillawalker.com/freemasonry-a-history.pdf
    • http://www.gorillawalker.com/the-frozen-dead.pdf
    • http://www.gorillawalker.com/the-medicalization-of-everyday-life-selected-essays-unabridged-audible-audio.pdf
    • http://www.gorillawalker.com/the-encyclopedia-of-b-westerns.pdf
    • http://www.gorillawalker.com/parapro-assessment-secrets-study-guide-paraprofessional-test-review-for-the.pdf
    • http://www.gorillawalker.com/naked-finance-business-finance-pure-and-simple.pdf
    • http://www.gorillawalker.com/multiagent-systems-a-modern-approach-to-distributed-artificial-intelligence.pdf
    • http://www.gorillawalker.com/never-mind-the-zombies-here-s-the-agnivores-the-return.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://www.aiim.org/pdfa/ns/extension/
    • http://www.aiim.org/pdfa/ns/schema#
    • http://www.aiim.org/pdfa/ns/property#
    • http://www.aiim.org/pdfa/ns/id/

Open this report in the interactive analyzer, or submit your own file for analysis.