Malicious PDF — malware analysis report

Static analysis result for SHA-256 79c4cc78870f8783…

MALICIOUS

PDF

33.2 KB Created: 2019-09-15 18:34:37 +03:00 Authoring application: CorelDRAW X8 (via Corel PDF Engine Version 18.1.0.661) First seen: 2021-10-11
MD5: 8421f8eab53cccbd8370fb8e0e7edf7f SHA-1: da5754acc6dc6c4a4ff17688d221c7c29b4bd966 SHA-256: 79c4cc78870f8783693f28d8b19d4c718755aa443b25a43fce2da7a02061627d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links pointing to PDF files on the domain 'www.gorillawalker.com'. This pattern is indicative of a link farm or SEO manipulation tactic. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was unreadable, but the sheer volume of links suggests a malicious intent to drive traffic or distribute content.

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/inside-job-8-secrets-to-loving-your-work-and-thriving.pdf In PDF document text
    • http://www.gorillawalker.com/digital-radiography-selected-topics.pdfIn PDF document text
    • http://www.gorillawalker.com/seduction-s-kiss-the-allure-chronicles.pdfIn PDF document text
    • http://www.gorillawalker.com/gingerbread-and-cranberries-and-a-1-2-cup-of-sand.pdfIn PDF document text
    • http://www.gorillawalker.com/true-sf-anime-kindle-edition.pdfIn PDF document text
    • http://www.gorillawalker.com/clothes-off-the-hottest-girls-in-the-sexiest-underwears-3.pdfIn PDF document text
    • http://www.gorillawalker.com/footprints-of-a-pilgrim-the-life-and-loves-of-ruth.pdfIn PDF document text
    • http://www.gorillawalker.com/concerto-for-flute-or-violoncello-or-harpsichord-strings-and-bass.pdfIn PDF document text
    • http://www.gorillawalker.com/persian-gulf-war-air-power-survey-volume-five-statistical-compendium.pdfIn PDF document text
    • http://www.gorillawalker.com/the-hammer-and-the-blade-an-egil-nix-novel.pdfIn PDF document text
    • http://www.gorillawalker.com/vagabond-vol-29.pdfIn PDF document text
    • http://www.gorillawalker.com/what-if-writing-exercises-for-fiction-writers.pdfIn PDF document text
    • http://www.gorillawalker.com/bridging-eight-decades-my-life-story-a-memoir-and-more.pdfIn PDF document text
    • http://www.gorillawalker.com/hondo-and-fabian.pdfIn PDF document text
    • http://www.gorillawalker.com/the-promise-and-the-blessing-a-historical-survey-of-the.pdfIn PDF document text
    • http://www.gorillawalker.com/messerschmitt-fact-file.pdfIn PDF document text
    • http://www.gorillawalker.com/an-american-demon-a-memoir.pdfIn PDF document text
    • http://www.gorillawalker.com/principles-and-practice-of-mechanical-ventilation-third-edition-tobin-principles.pdfIn PDF document text
    • http://www.gorillawalker.com/t-ai-shang-kan-ying-p-ien-treatise-of-the.pdfIn PDF document text
    • http://www.gorillawalker.com/abundancia-del-erizo-de-mar-centrostephanus-coronatus-echinoidea-diadematidae-en.pdfIn PDF document text
    • http://www.gorillawalker.com/delphi-complete-works-of-cicero-illustrated-delphi-ancient-classics-book.pdfIn PDF document text
    • http://www.gorillawalker.com/civil-war-cooking-the-confederacy-exploring-history-through-simple-recipes.pdfIn PDF document text
    • http://www.gorillawalker.com/social-problems-a-brief-introduction-2nd-edition.pdfIn PDF document text
    • http://www.gorillawalker.com/the-world-s-greatest-lighthouses.pdfIn PDF document text
    • http://www.gorillawalker.com/mathematics-for-economists-international-student-edition.pdfIn PDF document text
    • http://www.gorillawalker.com/paper-magic.pdfIn PDF document text
    • http://www.gorillawalker.com/die-hoffmann-aff-re-german-edition.pdfIn PDF document text
    • http://www.gorillawalker.com/the-passion-novena-a-scriptural-rosary.pdfIn PDF document text
    • http://www.gorillawalker.com/breath-machine-alto-recorder-duet.pdfIn PDF document text
    • http://www.gorillawalker.com/clymer-yamaha-v-star-650-1998-2007-clymer-motorcycle-repair.pdfIn PDF document text
    • http://www.gorillawalker.com/the-sscp-prep-guide-mastering-the-seven-key-areas-of.pdfIn PDF document text
    • http://www.gorillawalker.com/environmental-science-toward-a-sustainable-future-12-e.pdfIn PDF document text
    • http://www.gorillawalker.com/the-dialectical-behavior-therapy-skills-workbook-for-anger-using-dbt.pdfIn PDF document text
    • http://www.gorillawalker.com/the-green-ghost-and-other-stories.pdfIn PDF document text
    • http://www.gorillawalker.com/dreadful-fates-what-a-shocking-way-to-go-hardcover.pdfIn PDF document text
    • http://www.gorillawalker.com/the-great-ideas-program-biology-psychology-and-medicine.pdfIn PDF document text
    • http://www.gorillawalker.com/photographs-of-egypt-the-holy-land.pdfIn PDF document text
    • http://www.gorillawalker.com/pocket-guide-to-common-wild-flowers.pdfIn PDF document text
    • http://www.gorillawalker.com/sing-the-songs-of-rodgers-and-hammerstein-high-voice.pdfIn PDF document text
    • http://www.gorillawalker.com/the-expositor-s-bible-commentary-volume-4-1-2-kings.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://www.aiim.org/pdfa/ns/extension/In PDF document text
    • http://www.aiim.org/pdfa/ns/schema#In PDF document text
    • http://www.aiim.org/pdfa/ns/property#In PDF document text
    • http://www.aiim.org/pdfa/ns/id/In PDF document text

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