Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3bddf92e6e3cd4c…

MALICIOUS

PDF

44.2 KB Created: 2019-03-17 10:58:56 +03:00 Authoring application: Writer (via OpenOffice.org 2.4)
MD5: b5b3e1136edbb1d7b2ce75c3d02af12c SHA-1: 70665d75b9ed56e01fd68f6e23c6662571df87b5 SHA-256: d3bddf92e6e3cd4c07052b6f599cdb46995e1b2502a6f5e67e928c033f16136d
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious with high confidence. The document body is heavily obfuscated and unreadable, but the presence of numerous links to external PDFs hosted on the same domain suggests a link farm or redirection strategy. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9171

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/suicide-and-attempted-suicide-methods-and-consequences.pdf
    • http://www.gorillawalker.com/what-foreigners-need-to-know-about-america-from-a-to.pdf
    • http://www.gorillawalker.com/letter-to-treasury-reopening-hsbc-case-hsbc-money-laundering-case.pdf
    • http://www.gorillawalker.com/the-egyptian-book-of-the-dead-penguin-classics.pdf
    • http://www.gorillawalker.com/through-the-day-with-pilates-the-morning-energise.pdf
    • http://www.gorillawalker.com/daniel-boulud-cocktails.pdf
    • http://www.gorillawalker.com/fakebook-improvisations-on-a-journey-back-to-jazz.pdf
    • http://www.gorillawalker.com/cycling-the-kettle-valley-railway.pdf
    • http://www.gorillawalker.com/history-of-broughton-place-united-presbyterian-church-with-sketches-of.pdf
    • http://www.gorillawalker.com/space-law-reconsidering-the-definition-delimitation-question-and-the-passage.pdf
    • http://www.gorillawalker.com/the-final-addendum.pdf
    • http://www.gorillawalker.com/freedom-from-stress-a-holistic-approach.pdf
    • http://www.gorillawalker.com/chilton-s-repair-and-tune-up-guide-datsun-2.pdf
    • http://www.gorillawalker.com/new-ways-for-families-collaborative-parent-workbook.pdf
    • http://www.gorillawalker.com/the-jaguar-xk-series-crowood-autoclassics.pdf
    • http://www.gorillawalker.com/experiment-with-a-plant-s-roots-lightning-bolt-books.pdf
    • http://www.gorillawalker.com/sacred-rhythms-arranging-our-lives-for-spiritual-transformation.pdf
    • http://www.gorillawalker.com/10-christmas-brownie-mix-recipes-holiday-recipes-anyone-can-make.pdf
    • http://www.gorillawalker.com/bio-dynamics-number-82-summer-1967-a-periodical-furthering-soil.pdf
    • http://www.gorillawalker.com/republic-f-105-thunderchief-warbirdtech-vol-18.pdf
    • http://www.gorillawalker.com/how-we-got-here-from-bows-and-arrows-to-the.pdf
    • http://www.gorillawalker.com/modelling-and-simulation-of-power-generation-plants-advances-in-industrial.pdf
    • http://www.gorillawalker.com/intellectuals-don-t-need-god-and-other-modern-myths.pdf
    • http://www.gorillawalker.com/gestalt-terapia-com-crian.pdf
    • http://www.gorillawalker.com/ap-latin-vergil-and-literature-exams-w-cd-rom-rea.pdf
    • http://www.gorillawalker.com/when-cultures-meet-national-geographic-reading-expeditions-language-literacy-vocabulary.pdf
    • http://www.gorillawalker.com/critical-pedagogy-primer-peter-lang-primer-english-and-english-edition.pdf
    • http://www.gorillawalker.com/slave-to-a-vampire-paranormal-erotic-romance-involving-submissive-female.pdf
    • http://www.gorillawalker.com/the-arthur-of-the-welsh-the-arthurian-legend-in-medieval.pdf
    • http://www.gorillawalker.com/earth-blastoff-readers-exploring-space.pdf
    • http://www.gorillawalker.com/biologically-inspired-design-computational-methods-and-tools.pdf
    • http://www.gorillawalker.com/reading-explorations-book-a-97c-fearon-s-reading-explorations.pdf
    • http://www.gorillawalker.com/step-by-step-guide-to-microwave-cooking-basics-microwave-cooking.pdf
    • http://www.gorillawalker.com/with-all-its-faults-a-candid-account-of-forty-years.pdf
    • http://www.gorillawalker.com/the-true-vine-moody-classics.pdf
    • http://www.gorillawalker.com/conflict-of-religions-in-the-early-roman-empire.pdf
    • http://www.gorillawalker.com/ovid-s-metamorphoses-oxford-approaches-classical-literature.pdf
    • http://www.gorillawalker.com/my-first-book-of-cowboy-songs-dover-music-for-piano.pdf
    • http://www.gorillawalker.com/macular-disorders-an-illustrated-diagnostic-guide-1e.pdf
    • http://www.gorillawalker.com/property-insurance-law-and-claims.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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