Malicious PDF — malware analysis report

Static analysis result for SHA-256 90b1c8cc77c65843…

MALICIOUS

PDF

42.5 KB Created: 2018-11-14 11:23:14 +03:00 Authoring application: PScript5.dll Version 5.2 (via ePapyrus PSI 8.51)
MD5: e6e3b3b00494c07faad80ec5abb4d3da SHA-1: c5c74315022961866af3f4e4fa7ccac6eb41d228 SHA-256: 90b1c8cc77c6584346286b452ff126c98914a7eeb5b34bfa4aa495c55ee4a7e6
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 websites, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious with high confidence. The embedded URLs are likely used to redirect users to malicious sites or for SEO spamming purposes. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/utah-fishing-guide-2000-edition.pdf
    • http://www.gorillawalker.com/fly-trap-the.pdf
    • http://www.gorillawalker.com/the-serpent-s-tongue-a-dick-hardesty-mystery-volume-15.pdf
    • http://www.gorillawalker.com/the-advanced-guide-to-real-estate-investing-how-to-identify.pdf
    • http://www.gorillawalker.com/complex-analysis-for-mathematics-and-engineering.pdf
    • http://www.gorillawalker.com/wetland-heritage-the-louisiana-duck-decoy.pdf
    • http://www.gorillawalker.com/student-instrumental-course-oboe-student-level-i-elementary.pdf
    • http://www.gorillawalker.com/seeds-of-faith-practices-to-grow-a-healthy-spiritual-life.pdf
    • http://www.gorillawalker.com/temples-and-tombs-of-ancient-nubia-the-international-rescue-campaign.pdf
    • http://www.gorillawalker.com/linear-programming-basic-theory-and-applications-mcgraw-hill-series-in.pdf
    • http://www.gorillawalker.com/by-eme-cole-pilates-expanded-supplemental-exercises-to-the-reformer.pdf
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    • http://www.gorillawalker.com/advances-in-chemical-physics-modern-nonlinear-optics-volume-119-part.pdf
    • http://www.gorillawalker.com/michelin-in-your-pocket-greek-islands-of-the-aegean-1e.pdf
    • http://www.gorillawalker.com/savannah-bits-and-pieces.pdf
    • http://www.gorillawalker.com/molecular-mechanisms-of-programmed-cell-death.pdf
    • http://www.gorillawalker.com/epilepsy-sleep-and-sleep-deprivation-epilepsy-research-supplement.pdf
    • http://www.gorillawalker.com/alemtuzumab-an-entry-from-thomson-gale-s-gale-encyclopedia-of.pdf
    • http://www.gorillawalker.com/the-dorsai-companion.pdf
    • http://www.gorillawalker.com/birthdays-in-different-places-learning-about-our-global-community.pdf
    • http://www.gorillawalker.com/lisa-and-lottie.pdf
    • http://www.gorillawalker.com/cuanto-cuento-spanish-edition.pdf
    • http://www.gorillawalker.com/naruto-vol-64-ten-tails.pdf
    • http://www.gorillawalker.com/a-night-at-the-dark-queen-the-saga-of-the.pdf
    • http://www.gorillawalker.com/the-gallup-poll-public-opinion-2003-gallup-polls-annual-rl.pdf
    • http://www.gorillawalker.com/lion-of-babylon-marc-royce.pdf
    • http://www.gorillawalker.com/lifetime-health-student-edition-sexuality-and-responsibility-2007.pdf
    • http://www.gorillawalker.com/trojan-women-masters-of-latin-literature.pdf
    • http://www.gorillawalker.com/beaded-amulet-necklaces-easy-step-by-step-craft-projects-kindle.pdf
    • http://www.gorillawalker.com/kimberly-the-little-ballerina-paper-doll-dover-paper-dolls.pdf
    • http://www.gorillawalker.com/wallace-darwin-and-the-origin-of-species.pdf
    • http://www.gorillawalker.com/design-methods-seeds-of-human-futures.pdf
    • http://www.gorillawalker.com/alpha-team-training-manual-senior-alpha.pdf
    • http://www.gorillawalker.com/mia-hamm-rocks.pdf
    • http://www.gorillawalker.com/estudios-humanisticos-sobre-la-celestina-scripta-humanistica-vol-11-spanish.pdf
    • http://www.gorillawalker.com/perdonar-es-sanar-liberese-de-los-rencores-y-experimente-los.pdf
    • http://www.gorillawalker.com/steroids-at-issue.pdf
    • http://www.gorillawalker.com/growth-champions-the-battle-for-sustained-innovation-leadership.pdf
    • http://www.gorillawalker.com/when-elephants-weep-the-emotional-lives-of-animals.pdf
    • http://www.gorillawalke
    • 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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