Malicious PDF — malware analysis report

Static analysis result for SHA-256 245c40b379af00b5…

MALICIOUS

PDF

42.6 KB Created: 2018-12-02 10:56:58 +03:00 Authoring application: FineReader (via -)
MD5: cc7f2a4a301e56809439642b0587ad63 SHA-1: 824f75d2f956743864f1175db7307f949ae36c29 SHA-256: 245c40b379af00b5112093f9633c6c9a04c8b9a1bc6a84b2d8f5880faac99c1a
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a machine learning classifier and contains a large number of external links, indicating a potential SEO spam or phishing campaign. The document body is heavily obfuscated, making it difficult to determine the exact user-facing content. However, the presence of 32 external PDF links suggests a strategy to drive traffic to a large collection of documents hosted on www.gorillawalker.com.

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/the-marriage-clinic-a-scientifically-based-marital-therapy-norton-professional.pdf
    • http://www.gorillawalker.com/living-your-life-with-lung-cancer.pdf
    • http://www.gorillawalker.com/the-dare-boys-in-the-red-city.pdf
    • http://www.gorillawalker.com/how-to-love-your-kids-more-than-you-hate-your.pdf
    • http://www.gorillawalker.com/rapa-nui-el-diablo-dios-y-la-profetisa-evangelizaci-n.pdf
    • http://www.gorillawalker.com/working-for-the-devil-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/3d-printing-and-cnc-fabrication-with-sketchup.pdf
    • http://www.gorillawalker.com/doing-more-with-less-2nd-edition-measuring-analyzing-and-improving.pdf
    • http://www.gorillawalker.com/a-season-in-the-congo-sb-the-french-list.pdf
    • http://www.gorillawalker.com/core-topics-in-endocrinology-in-anaesthesia-and-critical-care.pdf
    • http://www.gorillawalker.com/the-white-road-a-survey-of-polar-exploration.pdf
    • http://www.gorillawalker.com/sport-a-critical-sociology.pdf
    • http://www.gorillawalker.com/builders-of-the-vision-software-and-the-imagination-of-design.pdf
    • http://www.gorillawalker.com/pennsylvania-trees-wildflowers-a-folding-pocket-guide-to-familiar-plants.pdf
    • http://www.gorillawalker.com/characteristic-classes-am-76.pdf
    • http://www.gorillawalker.com/encyclopedia-of-associations-regional-state-and-local-organizations-great-lakes.pdf
    • http://www.gorillawalker.com/aaron.pdf
    • http://www.gorillawalker.com/picasso-linoleum-cuts.pdf
    • http://www.gorillawalker.com/inheriting-abraham-the-legacy-of-the-patriarch-in-judaism-christianity.pdf
    • http://www.gorillawalker.com/in-the-shade-of-the-qur-an-vol-8-fi.pdf
    • http://www.gorillawalker.com/you-re-okay-it-s-just-a-bruise-a-doctor.pdf
    • http://www.gorillawalker.com/indigenous-australia-for-dummies.pdf
    • http://www.gorillawalker.com/nicolas-de-clamanges-spirituality-personal-reform-and-pastoral-renewal-on.pdf
    • http://www.gorillawalker.com/say-yes-bdsm-male-dominance-female-submission.pdf
    • http://www.gorillawalker.com/rigby-on-our-way-to-english-homeschool-connection-masters-grade.pdf
    • http://www.gorillawalker.com/by-zelezny-john-cases-in-communications-law-general-mass-communication.pdf
    • http://www.gorillawalker.com/max-q-student-journal.pdf
    • http://www.gorillawalker.com/realism-myth-and-history-in-defoe-s-fiction.pdf
    • http://www.gorillawalker.com/revised-office-readings-two-volume-set.pdf
    • http://www.gorillawalker.com/marine-science-451p.pdf
    • http://www.gorillawalker.com/in-the-light-of-italy-corot-and-early-open-air.pdf
    • http://www.gorillawalker.com/clinical-neuroanatomy-clinical-neuroanatomy-for-medical-students-snell-by-richard.pdf
    • http://www.gorillawalker.com/biography-today-profiles-of-people-of-interest-to-young-readers.pdf
    • http://www.gorillawalker.com/dictionary-of-mathematics-ntc-pocket-references.pdf
    • http://www.gorillawalker.com/a-place-called-home-writings-on-the-midwestern-small-town.pdf
    • http://www.gorillawalker.com/partition-classique-duet-no-2-r-kreutzer-duo-de-trombones.pdf
    • http://www.gorillawalker.com/chocolate-unwrapped-taste-enjoy-the-world-s-finest-chocolate.pdf
    • http://www.gorillawalker.com/houghton-mifflin-harcourt-collections-california-student-edition-grade-10-2017.pdf
    • http://www.gorillawalker.com/of-shadows-and-ash-maggie-s-grove-book-3.pdf
    • http://www.gorillawalker.com/malta-gozo-travel-with-someone-you-trust-aaa-spiral-guides.pdf
    • http://www.gorillawalker.com/3d-printing-and-cnc-fabrication-with-s
    • 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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