Malicious PDF — malware analysis report

Static analysis result for SHA-256 d547b4a2c8aa8f2b…

MALICIOUS

PDF

41.7 KB Created: 2019-02-14 08:12:24 +03:00 Authoring application: doPDF Ver 7.1 Build 349 (Windows XP Professional Edition (SP 3) - Version: 5.1.2600 (x86))
MD5: 30aaad7c07684458552d8b68ef5d821d SHA-1: 2390249acbfa1063d760fb4bc0a7d22ff1845c5a SHA-256: d547b4a2c8aa8f2b94905937d9248d7363989060e673b2339515d081820a54df
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to external PDF documents. The ML_NYX_PDF_MALICIOUS classifier also flagged this file with high confidence. The primary attack pattern involves luring users to click on these links, likely to download further malicious content or to engage in SEO-based link farming. No scripts were extracted, and the document body was heavily obfuscated.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9027

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/introduction-to-international-economics.pdf
    • http://www.gorillawalker.com/not-the-little-sister.pdf
    • http://www.gorillawalker.com/the-english-rose-restaurant-cookbook-rev-june.pdf
    • http://www.gorillawalker.com/ultimate-comics-thor.pdf
    • http://www.gorillawalker.com/jazz-in-print-1856-1929-an-anthology-of-selected-early.pdf
    • http://www.gorillawalker.com/the-heart-wants-what-it-wants-selena-gomez-piano-vocal.pdf
    • http://www.gorillawalker.com/collection-analysis-for-the-school-library-media-center-a-practical.pdf
    • http://www.gorillawalker.com/literate-lives-in-the-information-age-narratives-of-literacy-from.pdf
    • http://www.gorillawalker.com/nora-roberts-bride-cd-collection-vision-in-white-bed-of.pdf
    • http://www.gorillawalker.com/stewart-islanders.pdf
    • http://www.gorillawalker.com/the-crime-writer-s-guide-to-police-practice-and-procedure.pdf
    • http://www.gorillawalker.com/the-dalai-lama-s-book-of-love-and-compassion.pdf
    • http://www.gorillawalker.com/improving-your-soil-a-practical-guide-to-soil-management-for.pdf
    • http://www.gorillawalker.com/the-right-frequency-the-story-of-the-talk-giants-who.pdf
    • http://www.gorillawalker.com/singularity-hypotheses.pdf
    • http://www.gorillawalker.com/revision-notes-for-the-final-frcr.pdf
    • http://www.gorillawalker.com/2008-pmp-exam-test-prep-guide-pmbok-3rd-edition.pdf
    • http://www.gorillawalker.com/the-north-carolina-continentals.pdf
    • http://www.gorillawalker.com/donovan-mcnabb-football-superstars.pdf
    • http://www.gorillawalker.com/at-the-crossroads-an-article-from-soccer-digest-html-digital.pdf
    • http://www.gorillawalker.com/god-can-do-it-again.pdf
    • http://www.gorillawalker.com/macdonald-s-party-labour-identities-and-crisis-1922-1931.pdf
    • http://www.gorillawalker.com/rafi-and-rosi-carnival-i-can-read.pdf
    • http://www.gorillawalker.com/biology-of-the-ubiquitous-house-sparrow-from-genes-to-populations.pdf
    • http://www.gorillawalker.com/space-vengeance-a-scrapyard-ship-novel-volume-3.pdf
    • http://www.gorillawalker.com/devotions-for-little-boys-and-girls-new-testament.pdf
    • http://www.gorillawalker.com/half-life.pdf
    • http://www.gorillawalker.com/implementing-lean-six-sigma-in-30-days.pdf
    • http://www.gorillawalker.com/introduction-to-electron-microscopy-second-edition.pdf
    • http://www.gorillawalker.com/encounters-with-silence.pdf
    • http://www.gorillawalker.com/national-museum-of-scotland-the-highlights.pdf
    • http://www.gorillawalker.com/incubus-ballantine-reader-s-circle.pdf
    • http://www.gorillawalker.com/half-a-king-shattered-sea-book-1-kindle-edition.pdf
    • http://www.gorillawalker.com/mastering-autodesk-inventor-2015-and-autodesk-inventor-lt-2015-autodesk.pdf
    • http://www.gorillawalker.com/the-beatles-essential-elements-for-band-correlated-collections-tenor-saxophone.pdf
    • http://www.gorillawalker.com/housing-the-workers-1850-1914-a-comparative-perspective.pdf
    • http://www.gorillawalker.com/blackbirds-miriam-black-book-1.pdf
    • http://www.gorillawalker.com/toward-a-more-perfect-union-writings-of-herbert-j-storing.pdf
    • http://www.gorillawalker.com/yell-and-shout-cry-and-pout-a-kid-s-guide.pdf
    • http://www.gorillawalker.com/stedman-s-ophthalmology-words-stedman-s-word-books.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/

Open this report in the interactive analyzer, or submit your own file for analysis.