Malicious PDF — malware analysis report

Static analysis result for SHA-256 f641e856587ecffb…

MALICIOUS

PDF

40.3 KB Created: 2018-11-15 19:36:34 +03:00 Authoring application: Adobe Acrobat 7.05 (via Adobe Acrobat 7.05 Paper Capture Plug-in)
MD5: 74c6b2c8348e54e5f93eed8ff56fd123 SHA-1: accd0f1d36115dbca32cfdb22223d8dadbc1c68e SHA-256: f641e856587ecffb0562f642a7a9807f83aa6af1bd311dc5cd2113a2ec2ca09b
90 Risk Score

Malware Insights

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

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 from this sample, and the document body was truncated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8872

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/international-boundaries-a-geopolitical-atlas.pdf
    • http://www.gorillawalker.com/the-silver-key-a-dance-of-dragons-1-5-kindle.pdf
    • http://www.gorillawalker.com/cooking-with-wild-berries-fruits-of-illinois-iowa-and-missouri.pdf
    • http://www.gorillawalker.com/profitable-direct-marketing.pdf
    • http://www.gorillawalker.com/physiology-of-behavior-books-a-la-carte-plus-new-mypsychlab.pdf
    • http://www.gorillawalker.com/litigating-morality-american-legal-thought-and-its-english-roots.pdf
    • http://www.gorillawalker.com/the-best-town-in-the-world.pdf
    • http://www.gorillawalker.com/the-emergence-of-russian-foreign-policy.pdf
    • http://www.gorillawalker.com/ghost-in-the-maze-ghost-exile-2-world-of-the.pdf
    • http://www.gorillawalker.com/the-greenhaven-encyclopedia-of-the-renaissance.pdf
    • http://www.gorillawalker.com/applications-challenges-and-advancements-in-electromyography-signal-processing-advances-in.pdf
    • http://www.gorillawalker.com/alpha-dolphin-jason-s-juice-best-friend-first-time-gay.pdf
    • http://www.gorillawalker.com/masquerade-the-feminist-illusion.pdf
    • http://www.gorillawalker.com/moscow-rules-gabriel-allon-book-8-kindle-edition.pdf
    • http://www.gorillawalker.com/tristan-und-isolde-vocal-score.pdf
    • http://www.gorillawalker.com/barbarian-prince.pdf
    • http://www.gorillawalker.com/the-thicket.pdf
    • http://www.gorillawalker.com/priests-for-the-third-millennium-kindle-edition.pdf
    • http://www.gorillawalker.com/linear-programming-network-flows-2e-solutions-manual.pdf
    • http://www.gorillawalker.com/impressionists-artists-in-profile.pdf
    • http://www.gorillawalker.com/using-microsoft-onenote-2010.pdf
    • http://www.gorillawalker.com/just-enough-programming-logic-and-design.pdf
    • http://www.gorillawalker.com/sonata-in-f-k-332-signature-series-abrsm.pdf
    • http://www.gorillawalker.com/aggressive-offenders-cognition-theory-research-and-practice.pdf
    • http://www.gorillawalker.com/progressive-nature-of-epileptogenesis-north-holland-series-in-applied-mathematics.pdf
    • http://www.gorillawalker.com/computational-fluid-mechanics-and-heat-transfer-second-edition-series-in.pdf
    • http://www.gorillawalker.com/first-person-new-media-as-story-performance-and-game.pdf
    • http://www.gorillawalker.com/the-last-battle-radio-theatre-chronicles-of-narnia.pdf
    • http://www.gorillawalker.com/awakening-the-maxnotes-literature-guides.pdf
    • http://www.gorillawalker.com/international-commercial-arbitration-and-the-arbitrator-s-contract-routledge-research.pdf
    • http://www.gorillawalker.com/money-and-wealth-a-book-of-quotations.pdf
    • http://www.gorillawalker.com/the-rosie-effect-a-novel-by-graeme-simsion-trivia-on.pdf
    • http://www.gorillawalker.com/a-guide-to-getting-started-investing-in-numismatic-coins-and.pdf
    • http://www.gorillawalker.com/nonprescription-drug-therapy-guiding-patient-self-care.pdf
    • http://www.gorillawalker.com/act-on-overture-percussion-part-qty-4-a1212.pdf
    • http://www.gorillawalker.com/modern-trends-in-medical-virology.pdf
    • http://www.gorillawalker.com/perfect-bones-a-six-point-plan-for-healthy-bones.pdf
    • http://www.gorillawalker.com/how-to-win-at-poker-tournaments.pdf
    • http://www.gorillawalker.com/crawling-chaos.pdf
    • http://www.gorillawalker.com/the-internet-ip-and-new-market-opportunities-a-strategic-analysis.pdf
    • http://www.gorillawalker.com/cooking-with-wild-be
    • 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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