Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddd9d1fa150f2db9…

MALICIOUS

PDF

45.9 KB Created: 2019-03-17 11:09:45 +03:00 Authoring application: LaTeX with hyperref package (via dvips + ps2pdf)
MD5: 81e413ec6f8e1e17cef698a17d021157 SHA-1: 57d5f9fad60323473f5579b9722725fea7c8439c SHA-256: ddd9d1fa150f2db97b4f0a953d9bb76a6670993a6e42eb51dfc2a5c45707e1b4
60 Risk Score

Malware Insights

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

The PDF file exhibits a critical heuristic firing for a link farm, containing 32 external links to PDF documents hosted on www.gorillawalker.com. This suggests a tactic to manipulate SEO or to distribute further malicious content. No scripts were extracted from this sample. The embedded URLs are the primary indicators of malicious activity.

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/front-lines.pdf
    • http://www.gorillawalker.com/grace-remix-escape-to-reality-greatest-hits-volume-4.pdf
    • http://www.gorillawalker.com/student-s-solutions-manual-for-use-with-beginning-and-intermediate.pdf
    • http://www.gorillawalker.com/achalasia-a-medical-dictionary-bibliography-and-annotated-research-guide-to.pdf
    • http://www.gorillawalker.com/studyguide-for-small-animal-emergency-and-critical-care-for-veterinary.pdf
    • http://www.gorillawalker.com/convexity-cambridge-tracts-in-mathematics.pdf
    • http://www.gorillawalker.com/the-man-who-paints-nature-meet-the-author.pdf
    • http://www.gorillawalker.com/contemporary-scottish-gothic-mourning-authenticity-and-tradition-palgrave-gothic.pdf
    • http://www.gorillawalker.com/faith-medicine-and-science-a-festschrift-in-honor-of-dr.pdf
    • http://www.gorillawalker.com/the-orphan-zoo-the-rise-and-fall-of-the-farm.pdf
    • http://www.gorillawalker.com/oil-gas-handbook-a-roughneck-s-guide-to-the-universe.pdf
    • http://www.gorillawalker.com/materials-science-in-construction-an-introduction.pdf
    • http://www.gorillawalker.com/breeding-for-disease-resistance-in-farm-animals.pdf
    • http://www.gorillawalker.com/marines-crimson-worlds-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/over-the-top-kindle-edition.pdf
    • http://www.gorillawalker.com/out-of-the-flames.pdf
    • http://www.gorillawalker.com/hla-class-ii-antigens-a-comprehensive-review-of-structure-and.pdf
    • http://www.gorillawalker.com/atlas-of-gastroenterology-hepatology-on-cd-rom-colon-rectum-anus.pdf
    • http://www.gorillawalker.com/the-new-york-times-book-of-insects.pdf
    • http://www.gorillawalker.com/the-ultimate-series-christmas-100-seasonal-favorites-ultimate-hal-leonard.pdf
    • http://www.gorillawalker.com/from-eve-to-esther-letting-old-testament-women-speak-to.pdf
    • http://www.gorillawalker.com/cognitive-therapy-in-clinical-practice-an-illustrative-casebook.pdf
    • http://www.gorillawalker.com/the-iliad-of-homer-large-print.pdf
    • http://www.gorillawalker.com/great-american-hot-rods-a-full-throttle-chronicle-of-custom.pdf
    • http://www.gorillawalker.com/chronicles-of-kilix-volume-1.pdf
    • http://www.gorillawalker.com/paul-s-paradigmatic-i-personal-example-as-literary-strategy-the.pdf
    • http://www.gorillawalker.com/magic-tree-house-research-guide-16-polar-bears-and-the.pdf
    • http://www.gorillawalker.com/voyage-of-the-dawn-trader-cd-chronicles-of-narnia-5.pdf
    • http://www.gorillawalker.com/sons-of-liberty-kindle-edition.pdf
    • http://www.gorillawalker.com/a-compendious-and-complete-system-of-modern-geography-or-a.pdf
    • http://www.gorillawalker.com/maui-on-my-mind.pdf
    • http://www.gorillawalker.com/class-race-gender-and-crime-social-realities-of-justice-in.pdf
    • http://www.gorillawalker.com/crouching-tiger.pdf
    • http://www.gorillawalker.com/ven-conmigo-level-2-grade-10-native-speaker-activity-book.pdf
    • http://www.gorillawalker.com/donkey-kong-64-official-strategy-guide-cheat-code-overload.pdf
    • http://www.gorillawalker.com/c-algebras-proceedings-of-the-sfb-workshop-on-c-algebras.pdf
    • http://www.gorillawalker.com/handy-pocket-guide-to-tropical-coral-reef-fishes-handy-pocket.pdf
    • http://www.gorillawalker.com/nasty-vampire-nun-sensual-exorcist-book-1-2-sensual-stories.pdf
    • http://www.gorillawalker.com/grading-for-the-fashion-industry-the-theory-and-practice.pdf
    • http://www.gorillawalker.com/british-north-america-and-worldwide-stamps-and-covers-including-the.pdf
    • http://www.goril
    • 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/

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