Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e97faa31f6b4566…

MALICIOUS

PDF

46.3 KB Created: 2018-12-02 10:57:38 +03:00 Authoring application: doPDF Ver 7.2 Build 376 (Windows XP Professional Edition (SP 3) - Version: 5.1.2600 (x86))
MD5: bb59c052c594bb72a6d612e7c514ee1d SHA-1: 5d995139a9e7dcf8c55e574c2df0fed411df7088 SHA-256: 1e97faa31f6b45665a713d19aa58f05b88dd2d59e9d6a026e60ec4095ed9affd
90 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, all pointing to the domain www.gorillawalker.com. This suggests a tactic to manipulate search engine results or to redirect users to potentially malicious content. The ML classifier also flagged the document as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8480

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/the-house-of-mirth.pdf
    • http://www.gorillawalker.com/roman-catholic-theology-and-practice-an-evangelical-assessment.pdf
    • http://www.gorillawalker.com/american-character-dolls-identification-value-guide.pdf
    • http://www.gorillawalker.com/junipero-serra-california-s-founding-father.pdf
    • http://www.gorillawalker.com/international-geological-congress-xvi-session-united-states-1933-guidebook-28.pdf
    • http://www.gorillawalker.com/la-busqueda-del-ser-spanish-edition.pdf
    • http://www.gorillawalker.com/original-ending-of-mark-the-a-new-case-for-the.pdf
    • http://www.gorillawalker.com/why-are-we-baptised-the-doctrine-and-discipline-of-the.pdf
    • http://www.gorillawalker.com/an-analysis-of-the-osteopathic-lesion-a-study-in-pathology.pdf
    • http://www.gorillawalker.com/celiac-friendly-solution-breakfast-recipes-ultimate-celiac-cookbook-series-for.pdf
    • http://www.gorillawalker.com/afs-metalcasting-industry-agree-to-dismiss-secondary-aluminum-mact-epa.pdf
    • http://www.gorillawalker.com/die-leuchter-gutachten-kritische-ausgabe-holocaust-handbook-german-edition.pdf
    • http://www.gorillawalker.com/a-bird-s-eye-view-of-life-with-add-and.pdf
    • http://www.gorillawalker.com/abortion-care.pdf
    • http://www.gorillawalker.com/the-churchyards-handbook-care-of-churches.pdf
    • http://www.gorillawalker.com/the-meaning-of-friendship.pdf
    • http://www.gorillawalker.com/the-secret-of-the-strength-what-would-the-anabaptists-tell.pdf
    • http://www.gorillawalker.com/encyclopedia-of-weight-training-weight-training-for-general-conditioning-sport.pdf
    • http://www.gorillawalker.com/cairo-the-practical-guide-maps-new-revised-edition.pdf
    • http://www.gorillawalker.com/literarischer-stil-mittelalterliche-dichtung-zwischen-konvention-und-innovation-xxii-anglo.pdf
    • http://www.gorillawalker.com/alien-tentacle-sex-tentacle-monster-sci-fi-erotica.pdf
    • http://www.gorillawalker.com/the-transformation-of-italian-armed-forces-in-comparative-perspective-adapt.pdf
    • http://www.gorillawalker.com/frommer-s-national-parks-of-the-american-west.pdf
    • http://www.gorillawalker.com/der-rosenkavalier-opera-op-59-full-score-a6177.pdf
    • http://www.gorillawalker.com/la-vida-es-de-verdad-spanish-edition.pdf
    • http://www.gorillawalker.com/the-very-best-of-the-doors-piano-vocal-guitar.pdf
    • http://www.gorillawalker.com/titan-unveiled-saturn-s-mysterious-moon-explored.pdf
    • http://www.gorillawalker.com/orthopaedic-trauma-protocols.pdf
    • http://www.gorillawalker.com/pig-farm-acting-edition.pdf
    • http://www.gorillawalker.com/the-mystery-fancier-vol-8-no-1-january-february-1984.pdf
    • http://www.gorillawalker.com/the-guts-and-glory-of-day-trading-true-stories-of.pdf
    • http://www.gorillawalker.com/the-ariadne-objective-the-underground-war-to-rescue-crete-from.pdf
    • http://www.gorillawalker.com/basic-neurochemistry-principles-of-molecular-cellular-and-medical-neurobiology.pdf
    • http://www.gorillawalker.com/love-slave-kidnap-slavery-and-scintillating-sex.pdf
    • http://www.gorillawalker.com/the-age-of-chivalry-the-illustrated-bulfinch-s-mythology.pdf
    • http://www.gorillawalker.com/money-doesn-t-grow-on-trees-life-lessons.pdf
    • http://www.gorillawalker.com/1995-national-building-cost-manual.pdf
    • http://www.gorillawalker.com/annual-report-of-the-surgeon-general-of-the-public-health.pdf
    • http://www.gorillawalker.com/christian-leadership-lifeguide-bible-studies.pdf
    • http://www.gorillawalker.com/collaboration-explained-facilitation-skills-for-software-project-leaders-agile-software.pdf
    • http://www.gorillawalker.com/international-geological-con
    • 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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