Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8fd3eb8cfdad856…

MALICIOUS

PDF

42.8 KB Created: 2018-11-15 19:35:21 +03:00 Authoring application: Arbortext 5.4 (via PDFlib+PDI 7.0.4 (Win32))
MD5: 746b34e055af0a1f3a8107b43443dd93 SHA-1: f20ce527fcea518ec7061e1853220fc802827dc9 SHA-256: d8fd3eb8cfdad856c1b055ea0ee1f1d3f5171dfb959e71c59886f8f44edb3924
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8242

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/eastern-tour-to-the-holy-land-syria-and-the-great.pdf
    • http://www.gorillawalker.com/intelliporn.pdf
    • http://www.gorillawalker.com/shot-in-the-heart.pdf
    • http://www.gorillawalker.com/uncut-gay-erotic-stories.pdf
    • http://www.gorillawalker.com/cohomology-of-vector-bundles-and-syzygies-cambridge-tracts-in-mathematics.pdf
    • http://www.gorillawalker.com/the-mental-edge-in-trading-adapt-your-personality-traits-and.pdf
    • http://www.gorillawalker.com/encyclopedia-of-human-rights.pdf
    • http://www.gorillawalker.com/peso-y-medidas-antiguas-en-mexico-coleccion-historia-spanish-edition.pdf
    • http://www.gorillawalker.com/non-technical-obstacles-to-the-use-of-solar-energy.pdf
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    • http://www.gorillawalker.com/strabo-of-amasia-a-greek-man-of-letters-in-augustan.pdf
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    • http://www.gorillawalker.com/fall-of-cthulhu-omnibus.pdf
    • http://www.gorillawalker.com/new-testament-survey.pdf
    • http://www.gorillawalker.com/german-and-american-soups.pdf
    • http://www.gorillawalker.com/our-country-s-regions.pdf
    • http://www.gorillawalker.com/endocrinology-and-diabetes-clinical-cases-uncovered.pdf
    • http://www.gorillawalker.com/love-makes-a-house-a-home-a-christian-romance-home.pdf
    • http://www.gorillawalker.com/ovnis-ufos-el-misterio-sin-resolver-the-unsolved-mystery-misterios.pdf
    • http://www.gorillawalker.com/thrust-and-drag-its-prediction-and-verification-progress-in-astronautics.pdf
    • http://www.gorillawalker.com/tv-commercials-how-to-make-them-or-how-big-is.pdf
    • http://www.gorillawalker.com/physische-gesundheit.pdf
    • http://www.gorillawalker.com/30-new-testament-cartoon-postcards-send-a-laugh.pdf
    • http://www.gorillawalker.com/tigger-s-breakfast-disney-classic-pooh.pdf
    • http://www.gorillawalker.com/nottingham-wall-calendar-2016-art-calendar.pdf
    • http://www.gorillawalker.com/estados-unidos-la-historia-spanish-edition.pdf
    • http://www.gorillawalker.com/boatwatch-armchair-shopping-340-sailboats-29-35.pdf
    • http://www.gorillawalker.com/cycling-science-how-rider-and-machine-work-together.pdf
    • http://www.gorillawalker.com/everything-i-know-about-success-i-learned-from-napoleon-hill.pdf
    • http://www.gorillawalker.com/manual-treatment-of-back-pain.pdf
    • http://www.gorillawalker.com/principles-of-mathematical-logic.pdf
    • http://www.gorillawalker.com/orangutan-houdini.pdf
    • http://www.gorillawalker.com/zig-zag-and-zoom-through-the-horse-alphabet-horse-lovers.pdf
    • http://www.gorillawalker.com/army-museums-west-of-mississippi.pdf
    • http://www.gorillawalker.com/american-map-greater-cleveland-ohio-street-atlas.pdf
    • http://www.gorillawalker.com/routledge-philosophy-guidebook-to-husserl-and-the-cartesian-meditations-routledge.pdf
    • http://www.gorillawalker.com/battletech-master-rules-battletech-series.pdf
    • http://www.gorillawalker.com/the-dilemma-of-abortion.pdf
    • http://www.gorillawalker.com/her-sex-slave-punishment-for-her-crime-lesbian-boss-bdsm.pdf
    • http://www.gorillawalker.com/statistics-for-individual-crystallographic-orientation-measurements-industriemathematick-und-angewandte-mathematik.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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