Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc04f0c2b8a8f739…

MALICIOUS

PDF

44.0 KB Created: 2018-11-30 20:05:38 +03:00 Authoring application: PDFpen
MD5: e7c4be069f28923f8b531cb7d358d1e0 SHA-1: f5c41db23af4ee11db92d34fb2811f6507c42bfb SHA-256: bc04f0c2b8a8f739a409fb23e480ea93a4b43991b2055f969add775e61fe1554
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious and contains a large number of embedded links to external PDF files hosted on gorillawalker.com. This behavior is consistent with a link farm or SEO manipulation tactic, potentially used to distribute malicious content or improve search engine rankings for malicious sites. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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/using-media-technology-with-gifted-learners.pdf
    • http://www.gorillawalker.com/collecting-american-firefighting-artifacts.pdf
    • http://www.gorillawalker.com/chakras-and-their-archetypes-uniting-energy-awareness-and-spiritual-growth.pdf
    • http://www.gorillawalker.com/always-coca-cola.pdf
    • http://www.gorillawalker.com/how-to-quit-working-a-simple-plan-to-leave-your.pdf
    • http://www.gorillawalker.com/differential-equations-and-their-applications-an-introduction-to-applied-mathematics.pdf
    • http://www.gorillawalker.com/i-was-the-alpha-male-now-i-m-a-biker.pdf
    • http://www.gorillawalker.com/the-river-war-an-historical-account-of-the-reconquest-of.pdf
    • http://www.gorillawalker.com/el-legion-y-alma-del-emperador-spanish-edition.pdf
    • http://www.gorillawalker.com/differentiating-instruction-with-menus-language-arts-grades-k-2.pdf
    • http://www.gorillawalker.com/uncertainties-of-knowledge-politics-history-social-chan.pdf
    • http://www.gorillawalker.com/doll-hair-salon-revised-american-girl.pdf
    • http://www.gorillawalker.com/masaje-terapeutico-teoria-y-practica-theory-and-practice-of-therapeutic.pdf
    • http://www.gorillawalker.com/berlitz-language-central-south-africa-phrase-book-dictionary-portuguese-tswana.pdf
    • http://www.gorillawalker.com/forests-of-the-dionsaurs.pdf
    • http://www.gorillawalker.com/read-180-stage-c-before-we-were-free-enterprise-edition.pdf
    • http://www.gorillawalker.com/north-of-ireland-2nd.pdf
    • http://www.gorillawalker.com/drive-safe-an-essential-guide-for-motorists.pdf
    • http://www.gorillawalker.com/1001-basic-phrases-english-latin.pdf
    • http://www.gorillawalker.com/structure-determination-from-powder-diffraction-data-iucr-monographs-on-crystallography.pdf
    • http://www.gorillawalker.com/first-class-legendary-ocean-liner-voyages-around-the-world.pdf
    • http://www.gorillawalker.com/courting-justice-ten-new-jersey-cases-that-shook-the-nation.pdf
    • http://www.gorillawalker.com/dublin-berlitz-pocket-guides.pdf
    • http://www.gorillawalker.com/medical-computer-application-national-medical-colleges-computer-class-planning-materials.pdf
    • http://www.gorillawalker.com/joseph-elzear-bernier-champion-of-canadian-arctic-sovereignty.pdf
    • http://www.gorillawalker.com/children-s-picturebooks-the-art-of-visual-storytelling.pdf
    • http://www.gorillawalker.com/god-beyond-nature-kindle-edition.pdf
    • http://www.gorillawalker.com/defeating-the-u-boat-inventing-antisubmarine-warfare-newport-paper.pdf
    • http://www.gorillawalker.com/our-vanishing-landscape-dover-books-on-americana.pdf
    • http://www.gorillawalker.com/frugal-minimalist-how-to-live-more-optimally-by-saving-money.pdf
    • http://www.gorillawalker.com/healthy-pasta-the-sexy-skinny-and-smart-way-to-eat.pdf
    • http://www.gorillawalker.com/twelfth-night-a-wendover-house-mystery.pdf
    • http://www.gorillawalker.com/der-b.pdf
    • http://www.gorillawalker.com/el-esplendor-egipcio-the-splendour-of-egypt-historia-y-civilizacion.pdf
    • http://www.gorillawalker.com/living-with-fire-fire-ecology-and-policy-for-the-twenty.pdf
    • http://www.gorillawalker.com/reading-north-korea-an-ethnological-inquiry-harvard-east-asian-monographs.pdf
    • http://www.gorillawalker.com/a-common-word-muslims-and-christians-on-loving-god-and.pdf
    • http://www.gorillawalker.com/eight-life-enriching-practices-of-united-methodists-united-methodist-studies.pdf
    • http://www.gorillawalker.com/de-madrid-panam-vigo-tuy-tenerife-puerto-rico-cuba-col.pdf
    • http://www.gorillawalker.com/solos-for-the-tenor-saxophone-player-with-piano-accompaniment.pdf
    • http://www.gorillawalker.com/i-was-the-alpha-male-now-i-m-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/

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