Malicious PDF — malware analysis report

Static analysis result for SHA-256 a91c412e9e4a06f8…

MALICIOUS

PDF

33.0 KB Created: 2019-05-24 00:41:37 +03:00 Authoring application: Writer (via OpenOffice.org 2.4)
MD5: d2410809df4b2c2aba822814b417a7c7 SHA-1: 11a1b4df6003c9319bb92bbd103d71fab9e12974 SHA-256: a91c412e9e4a06f85cac5fed7d5f626e4af141894e9415c331012763f37d3f4d
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the PDF as malicious. The primary purpose appears to be to host these links, likely for SEO spam or to redirect users to potentially harmful content hosted on the 'gorillawalker.com' domain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8215

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/constable.pdf
    • http://www.gorillawalker.com/grade-3-division-kumon-math-workbooks.pdf
    • http://www.gorillawalker.com/detail-engineering-1-schlaich-bergermann-und-partner.pdf
    • http://www.gorillawalker.com/freedom-and-order-the-bible-and-british-politics.pdf
    • http://www.gorillawalker.com/a-selected-study-of-gerrard-winstanley-and-the-diggers-in.pdf
    • http://www.gorillawalker.com/colourful-world-of-spiritualism.pdf
    • http://www.gorillawalker.com/a-word-fitly-spoken.pdf
    • http://www.gorillawalker.com/permissible-praise-rays-of-hope-to-light-your-way.pdf
    • http://www.gorillawalker.com/it-due-diligence-checklist-2015-edition.pdf
    • http://www.gorillawalker.com/timber-colony-a-historical-geography-of-early-nineteenth-century-new.pdf
    • http://www.gorillawalker.com/a-greek-prose-course-unit-2-philosophy.pdf
    • http://www.gorillawalker.com/daily-language-review-grade-7.pdf
    • http://www.gorillawalker.com/the-access-manager-s-handbook-a-guide-for-managing-community.pdf
    • http://www.gorillawalker.com/imagery-on-fabric-a-complete-surface-design-handbook-second-edition.pdf
    • http://www.gorillawalker.com/homeopatia-y-lesiones-deportivas-spanish-edition.pdf
    • http://www.gorillawalker.com/algorithms-and-parallel-vlsi-architectures-lectures-and-tutorials-presented-at.pdf
    • http://www.gorillawalker.com/op-rage-across-the-world-1-werewolf-the-apocalypse.pdf
    • http://www.gorillawalker.com/adi-shankaracharya-s-bhajagovindam.pdf
    • http://www.gorillawalker.com/stepping-stones-cello-and-piano.pdf
    • http://www.gorillawalker.com/persons-divine-and-human-king-s-college-essays-in-theological.pdf
    • http://www.gorillawalker.com/foundations-and-adult-health-nursing-pageburst-e-book-on-vitalsource.pdf
    • http://www.gorillawalker.com/the-art-of-bird-illustration-paperback.pdf
    • http://www.gorillawalker.com/letting-go-feminist-and-social-justice-insight-and-activism.pdf
    • http://www.gorillawalker.com/montauk-book-of-the-dead.pdf
    • http://www.gorillawalker.com/mymathlab-guided-notebook-and-etext-reference-mymathlab-ecourse.pdf
    • http://www.gorillawalker.com/latino-arts-and-their-influence-on-the-united-states-songs.pdf
    • http://www.gorillawalker.com/violin-concerto-no-3-op-58-orchestra-score-parts-bassoon.pdf
    • http://www.gorillawalker.com/six-months-off-how-to-plan-negotiate-take-the-break.pdf
    • http://www.gorillawalker.com/grow-up-4-daniel-boom-aka-loud-boy.pdf
    • http://www.gorillawalker.com/the-iceman-the-rise-and-fall-of-a-crime-lord.pdf
    • http://www.gorillawalker.com/manual-del-acumulador-de-orgon-la-energia-vital-de-wilhelm.pdf
    • http://www.gorillawalker.com/dr-s-surprise-triplets-wife-needed-kindle-edition.pdf
    • http://www.gorillawalker.com/history-of-interest-rates.pdf
    • http://www.gorillawalker.com/a-tour-of-normandy.pdf
    • http://www.gorillawalker.com/la-m-s-bella-historia-del-amor-historia-fondo-de.pdf
    • http://www.gorillawalker.com/astrophysicist-and-space-advocate-neil-degrasse-tyson-stem-trailblazer-bios.pdf
    • http://www.gorillawalker.com/kashmir-in-conflict-india-pakistan-and-the-unending-war.pdf
    • http://www.gorillawalker.com/doubles-tennis-tactics.pdf
    • http://www.gorillawalker.com/from-an-antique-land-an-introduction-to-ancient-near-eastern.pdf
    • http://www.gorillawalker.com/in-the-shadow-of-the-master.pdf
    • http://www.gorillawalker.com/the-access-manager-s-handbook-a
    • 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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