Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3ec2e99089108b2…

MALICIOUS

PDF

44.4 KB Created: 2019-03-17 11:40:06 +03:00 Authoring application: - (via ProcessText Group)
MD5: b3fa4866fc979437d6df04ea39f95494 SHA-1: 4885bda8eb27002b9e344a6860ebd83ca4430912 SHA-256: b3ec2e99089108b293fbb2331234856b727fad2b72310edca0d3ec246f0e40cc
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9007

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/new-jersey-gardener-s-guide-the-what-where-when-how.pdf
    • http://www.gorillawalker.com/banjo-on-my-knee-sheet-music.pdf
    • http://www.gorillawalker.com/savant-book-1-of-the-luminether-fantasy-series.pdf
    • http://www.gorillawalker.com/strategies-for-successful-writing-a-rhetoric-research-guide-reader-and.pdf
    • http://www.gorillawalker.com/church-hymnary-4-melody-edition.pdf
    • http://www.gorillawalker.com/red-blooded-jessica-mcclain.pdf
    • http://www.gorillawalker.com/merriam-webster-s-crossword-puzzle-dictionary-second-edition.pdf
    • http://www.gorillawalker.com/living-in-groups-oxford-series-in-ecology-and-evolution.pdf
    • http://www.gorillawalker.com/globalization-in-the-asian-region-impacts-and-consequences.pdf
    • http://www.gorillawalker.com/2-romanian-rhapsodies-op-11-rhapsody-no-1-in-a.pdf
    • http://www.gorillawalker.com/baby-penguins-blastoff-readers-super-cute.pdf
    • http://www.gorillawalker.com/el-espiritu-de-la-llanura-y-el-desierto-spanish-edition.pdf
    • http://www.gorillawalker.com/la-rep-blica-conservadora-de-nicaragua-1858-1893-spanish-edition.pdf
    • http://www.gorillawalker.com/bundle-algebra-and-trigonometry-with-analytic-geometry-classic-edition-12th.pdf
    • http://www.gorillawalker.com/leon-battista-alberti-and-nicholas-cusanus-towards-an-epistemology-of.pdf
    • http://www.gorillawalker.com/my-test-drive-lover-seducing-straight-women-2.pdf
    • http://www.gorillawalker.com/knights-and-castles-thematic-unit.pdf
    • http://www.gorillawalker.com/study-and-master-agricultural-sciences-grade-12-caps-learner-s.pdf
    • http://www.gorillawalker.com/shipbroking-and-chartering-practice.pdf
    • http://www.gorillawalker.com/spring-seasons-board-books.pdf
    • http://www.gorillawalker.com/what-s-in-a-map-regional-restructuring-and-the-state.pdf
    • http://www.gorillawalker.com/immune-regulators-in-transfer-factor.pdf
    • http://www.gorillawalker.com/a-day-at-greenhill-farm-turtleback.pdf
    • http://www.gorillawalker.com/church-representation-rules-2011.pdf
    • http://www.gorillawalker.com/women-and-the-criminal-justice-system-4th-edition.pdf
    • http://www.gorillawalker.com/up-from-scapegoating-awakening-consciousness-in-groups-kindle-edition.pdf
    • http://www.gorillawalker.com/lonely-planet-usa-canada-on-a-shoestring.pdf
    • http://www.gorillawalker.com/visits-to-the-most-blessed-sacrament-and-the-blessed-virgin.pdf
    • http://www.gorillawalker.com/large-scale-scientific-computation.pdf
    • http://www.gorillawalker.com/lost-walls-graffiti-road-trip-through-tunisia.pdf
    • http://www.gorillawalker.com/faute-de-choix-grands-d-tectives-french-edition.pdf
    • http://www.gorillawalker.com/sample-size-determination-for-estimation-of-sensor-detection-probabilities-based.pdf
    • http://www.gorillawalker.com/behind-bars-latino-as-and-prison-in-the-united-states.pdf
    • http://www.gorillawalker.com/a-canadian-in-europe-being-sketches-of-travel-in-france.pdf
    • http://www.gorillawalker.com/cocina-casera-nuestras-100-mejores-recetas-en-un-solo-libro.pdf
    • http://www.gorillawalker.com/the-sword-and-the-centuries-greenhill-military-manuals.pdf
    • http://www.gorillawalker.com/rosen-s-emergency-medicine-concepts-and-clinical-practice-2-volume.pdf
    • http://www.gorillawalker.com/inquiries-into-truth-and-interpretation-philosophical-essays-of-donald-davidson.pdf
    • http://www.gorillawalker.com/the-tricultural-personality-chinese-hispanic-english-a-paradigm-for-connecting.pdf
    • http://www.gorillawalker.com/curry-fire-and-spice-over-150-great-curries-from-india.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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