Malicious PDF — malware analysis report

Static analysis result for SHA-256 22ec7b4159d41154…

MALICIOUS

PDF

45.2 KB Created: 2018-12-15 21:25:31 +03:00 Authoring application: Adobe InDesign CC 2017 (Windows) (via Adobe PDF Library 15.0)
MD5: 111743b8625966fc6e3bbc626a970590 SHA-1: 3b0ff6b5d1f5537ffc30ff9026081205e8eec29e SHA-256: 22ec7b4159d411549a1db375c9723ff9334d8754e13e5d8dc4c3aa6669d828c8
90 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and contains a large number of embedded links to external PDFs hosted on the same domain. This suggests a link farm or SEO poisoning tactic designed to drive traffic to the domain. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8634

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-wannado-curriculum-a-math-teacher-s-journey-to-the.pdf
    • http://www.gorillawalker.com/south-sea-tales-by-jack-london-short-story-collection-the.pdf
    • http://www.gorillawalker.com/the-templar-legacy-a-novel-cotton-malone.pdf
    • http://www.gorillawalker.com/substrate-noise-coupling-in-analog-rf-circuits-artech-house-microwave.pdf
    • http://www.gorillawalker.com/principles-of-chemistry-a-molecular-approach.pdf
    • http://www.gorillawalker.com/the-shadow-no-4-the-murder-master-and-the-hydra.pdf
    • http://www.gorillawalker.com/manuscript-paper-for-soprano-i-ii-and-alto-tenor-and.pdf
    • http://www.gorillawalker.com/iec-60130-12-ed-2-0-b-1976-connectors-for.pdf
    • http://www.gorillawalker.com/tvro-technology.pdf
    • http://www.gorillawalker.com/owned-by-bbc-2-interracial-cuckold-lifestyle-naughty-interracial-hot.pdf
    • http://www.gorillawalker.com/spalding-s-official-football-guide-for-1918.pdf
    • http://www.gorillawalker.com/hybrid-lives-of-teaching-artists-in-dance-and-theatre-arts.pdf
    • http://www.gorillawalker.com/rocker-scars-strikes.pdf
    • http://www.gorillawalker.com/giacomo-leopardi-selected-poems-kindle-edition.pdf
    • http://www.gorillawalker.com/principles-of-prescribing-clinical-experiences-of-pioneers-of-homeopathy.pdf
    • http://www.gorillawalker.com/the-court-and-times-of-charles-the-first-illustrated-by.pdf
    • http://www.gorillawalker.com/battletech-silent-reapers-zyklus-2-auf-der-flucht-german-edition.pdf
    • http://www.gorillawalker.com/do-obsessional-beliefs-discriminate-ocd-without-tic-patients-from-ocd.pdf
    • http://www.gorillawalker.com/marley-marley-springs-ahead.pdf
    • http://www.gorillawalker.com/marvel-chronicle-a-year-by-year-history.pdf
    • http://www.gorillawalker.com/andante-e-rondo-ongarese-op-35-version-for-bassoon-and.pdf
    • http://www.gorillawalker.com/destinos-second-edition-of-the-alternate-edition.pdf
    • http://www.gorillawalker.com/rancidity-in-foods.pdf
    • http://www.gorillawalker.com/the-walking-dead-03-die-zuflucht-german-edition.pdf
    • http://www.gorillawalker.com/ellie-and-elvis-bloomsbury-paperbacks.pdf
    • http://www.gorillawalker.com/forensic-pathology.pdf
    • http://www.gorillawalker.com/branded-orca-currents.pdf
    • http://www.gorillawalker.com/christopher-columbus-and-his-voyage-to-america-lets-celebrate-series.pdf
    • http://www.gorillawalker.com/cooking-with-the-firehouse-chef.pdf
    • http://www.gorillawalker.com/sams-teach-yourself-web-services-in-24-hours.pdf
    • http://www.gorillawalker.com/180-essential-vocabulary-words-for-6th-grade-independent-learning-packets.pdf
    • http://www.gorillawalker.com/contract-of-betrayal-spectras-arise-trilogy-book-2.pdf
    • http://www.gorillawalker.com/asian-security-order-instrumental-and-normative-features.pdf
    • http://www.gorillawalker.com/the-last-vampire.pdf
    • http://www.gorillawalker.com/radically-simple-accounting-a-way-out-of-the-dark-and.pdf
    • http://www.gorillawalker.com/vision-casting-the-road-of-leadership-the-summit-at-willow.pdf
    • http://www.gorillawalker.com/ordinary-people-change-the-world-gift-set-ordinary-people-change.pdf
    • http://www.gorillawalker.com/one-piece-vol-34-the-city-of-water-water-seven.pdf
    • http://www.gorillawalker.com/rock-mechanics-an-introduction.pdf
    • http://www.gorillawalker.com/compounds-with-chlorine-bromine-iodine-gmelin-handbook-of-inorganic-and.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/

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