Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a40fb324330374a…

MALICIOUS

PDF

45.3 KB Created: 2019-02-13 20:07:51 +03:00 Authoring application: - (via PDFlib Personalization Server 5.0.1 (COM/Win32) unlicensed)
MD5: 0b8f70fff509ca167fc1a377a445cfa0 SHA-1: 90a0c9fd46a69eadef742968ee3342a90cc509d3 SHA-256: 8a40fb324330374a98ae91f0c5ef913db99eea2fb28da81645417625150a40fa
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a link farm with 32 external PDF links, all hosted on www.gorillawalker.com. This heuristic suggests a SEO poisoning or link-farming attack pattern. No scripts were extracted, and the document body was heavily obfuscated, preventing a deeper analysis of the immediate intent beyond the link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8812

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/napoleon-soldier-of-destiny-v-1.pdf
    • http://www.gorillawalker.com/experiencing-god-knowing-and-doing-the-will-of-god-preteen.pdf
    • http://www.gorillawalker.com/environmental-histories-of-the-cold-war-publications-of-the-german.pdf
    • http://www.gorillawalker.com/ragaglitazar-lowers-glucose-triglycerides-in-type-2-patients-investigational-diabetes.pdf
    • http://www.gorillawalker.com/social-worker-as-researcher-integrating-research-with-advocacy.pdf
    • http://www.gorillawalker.com/the-stinky-giant-turtleback-school-library-binding-edition-step-into.pdf
    • http://www.gorillawalker.com/mediterranean-recipes-the-complete-guide-to-breakfast-lunch-dinner-and.pdf
    • http://www.gorillawalker.com/literary-nashville-literary-cities.pdf
    • http://www.gorillawalker.com/heavy-metal-july-1997-featuring-gullivera.pdf
    • http://www.gorillawalker.com/shetland-documents-1580-1611.pdf
    • http://www.gorillawalker.com/paradoxes-of-social-capital-a-multi-generational-study-of-moroccans.pdf
    • http://www.gorillawalker.com/works-for-violin-the-complete-sonatas-and-partitas-for-unaccompanied.pdf
    • http://www.gorillawalker.com/chopin-polonaise-no-3-op-40-no-1-instantly-download.pdf
    • http://www.gorillawalker.com/the-diva-code-miss-piggy-on-life-love-and-the.pdf
    • http://www.gorillawalker.com/the-vo-tech-track-to-success-in-health-care-learning.pdf
    • http://www.gorillawalker.com/q-a-a-day-5-year-journal.pdf
    • http://www.gorillawalker.com/outdoor-glamour-photography-the-complete-digital-guide-to-taking-successful.pdf
    • http://www.gorillawalker.com/the-reconstruction-of-warriors-archibald-mcindoe-the-royal-air-force.pdf
    • http://www.gorillawalker.com/torn-from-the-inside-out-extended-edition-2015-kindle-edition.pdf
    • http://www.gorillawalker.com/my-curvy-valentine-a-perfect-fit-novella-kindle-edition.pdf
    • http://www.gorillawalker.com/librito-de-instrucciones-de-dios-para-jovenes-god-s-little.pdf
    • http://www.gorillawalker.com/a-guide-to-the-gold-mines-of-kansas-containing-an.pdf
    • http://www.gorillawalker.com/art-painting-with-everyday-materials.pdf
    • http://www.gorillawalker.com/domine-los-acordes-y-ritmos-b-sicos-curso-completo-de.pdf
    • http://www.gorillawalker.com/organic-synthesis-concepts-and-methods.pdf
    • http://www.gorillawalker.com/italian-literature-roots-and-branches-essays-in-honor-of-thomas.pdf
    • http://www.gorillawalker.com/hilbert-space-methods-in-signal-processing.pdf
    • http://www.gorillawalker.com/learning-through-laughter.pdf
    • http://www.gorillawalker.com/you-have-killed-me.pdf
    • http://www.gorillawalker.com/microelectronic-circuits-and-devices-custom-edition.pdf
    • http://www.gorillawalker.com/the-complete-concrete.pdf
    • http://www.gorillawalker.com/spying-on-the-enemy-s-camp.pdf
    • http://www.gorillawalker.com/eternal-summer-the-art-of-edward-henry-potthast.pdf
    • http://www.gorillawalker.com/the-shell-desk-diary-for-1980-with-photographs-and-engravingsshowing.pdf
    • http://www.gorillawalker.com/drugs-behavior-an-introduction-to-behavioral-pharmacology-vol-2-fifth.pdf
    • http://www.gorillawalker.com/scandanavia-the-rough-guide-fourth-edition-1997-4th-ed.pdf
    • http://www.gorillawalker.com/elizabeth-lowell-cd-collection-1-desert-rain-lover-in-the.pdf
    • http://www.gorillawalker.com/the-red-fist-of-rome.pdf
    • http://www.gorillawalker.com/words-that-changed-america-great-speeches-that-inspired-challenged-healed.pdf
    • http://www.gorillawalker.com/the-porn-factor-predator-proof-your-family.pdf
    • http://www.gorillawalker.c
    • 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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