Malicious PDF — malware analysis report

Static analysis result for SHA-256 adc54582de514277…

MALICIOUS

PDF

45.2 KB Created: 2018-11-30 20:30:25 +03:00 Authoring application: AH XSL Formatter V6.1 MR1 for Linux64 : 6.1.6.12100 (via Antenna House PDF Output Library 6.1.420 (Linux64); modified using iText 2.1.7 by 1T3XT)
MD5: 99d4359b7a89be581b93abc261e3ad56 SHA-1: 13f4e17aa35f6431eb320cff92a3599bf4f35582 SHA-256: adc54582de514277248a341e5f4f07ee7ccd054584f38c18e1b1cefa76199889
130 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents, primarily hosted on 'gorillawalker.com'. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious payloads. The presence of a 'LOLBin Run Command' heuristic suggests that the document may also contain instructions for executing scripts or commands, potentially to download and execute further stages. The ML classifier also flagged this PDF as malicious with a high probability.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8812

Heuristics 3

  • 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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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-creed-as-symbol.pdf
    • http://www.gorillawalker.com/100-best-careers-in-casinos-and-casino-hotels.pdf
    • http://www.gorillawalker.com/insurance-law-and-policy-cases-and-materials-2nd-second-edition.pdf
    • http://www.gorillawalker.com/twentieth-century-interpretations-of-hamlet-a-collection-of-critical-essays.pdf
    • http://www.gorillawalker.com/masterpiece-3-the-last-love-that-star-gave-to-me.pdf
    • http://www.gorillawalker.com/101-tips-on-nutrition-for-people-with-diabetes-101-tips.pdf
    • http://www.gorillawalker.com/just-married-the-catholic-guide-to-surviving-and-thriving-in.pdf
    • http://www.gorillawalker.com/south-america-classic-enlarged-and-laminated-national-geographic-reference-map.pdf
    • http://www.gorillawalker.com/fresh-tracks-in-the-belgian-congo-from-the-uganda-border.pdf
    • http://www.gorillawalker.com/ageism.pdf
    • http://www.gorillawalker.com/arthur-s-underwear-arthur-adventure-series.pdf
    • http://www.gorillawalker.com/basics-of-the-faith-a-catholic-catechism.pdf
    • http://www.gorillawalker.com/by-victoria-maizes-md-be-fruitful-the-essential-guide-to.pdf
    • http://www.gorillawalker.com/el-libro-de-los-augurios-spanish-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/bni-mechanical-electrical-costbook-2015.pdf
    • http://www.gorillawalker.com/let-146-s-learn-the-alphabet-grades-toddler-pk.pdf
    • http://www.gorillawalker.com/sherlock-holmes-pocket-essentials.pdf
    • http://www.gorillawalker.com/indonesia-labor-laws-and-regulations-handbook-strategic-information-and-basic.pdf
    • http://www.gorillawalker.com/fear-itself-a-fearless-jones-novel.pdf
    • http://www.gorillawalker.com/geological-mapping-in-northwestern-saudi-arabia-using-landsat-multispectral-techniques.pdf
    • http://www.gorillawalker.com/complete-sonatinas-for-piano-opp-36-37-and-38-dover.pdf
    • http://www.gorillawalker.com/early-american-detective-stories-an-anthology.pdf
    • http://www.gorillawalker.com/ideas-for-great-backyard-cottages.pdf
    • http://www.gorillawalker.com/fiber-optic-meteorology-and-standards-12-14-march-1991-the.pdf
    • http://www.gorillawalker.com/antenna-theory-analysis-design.pdf
    • http://www.gorillawalker.com/the-force-of-symmetry.pdf
    • http://www.gorillawalker.com/sexy-anime-17-collection-of-photos-kindle-edition.pdf
    • http://www.gorillawalker.com/battles-of-the-new-republic-a-contemporary-history-of-nepal.pdf
    • http://www.gorillawalker.com/essentials-of-lewis-s-child-and-adolescent-psychiatry-essentials-of.pdf
    • http://www.gorillawalker.com/balls-the-life-of-eddie-trascher-gentleman-gangster.pdf
    • http://www.gorillawalker.com/multilingual-glossary-of-biotechnological-terms-iupac-recommendations-in-english-french.pdf
    • http://www.gorillawalker.com/cheeky-wee-monkey-joke-book.pdf
    • http://www.gorillawalker.com/jurisprudence-march-full-score-a5502.pdf
    • http://www.gorillawalker.com/play-to-win-choosing-growth-over-fear-in-work-and.pdf
    • http://www.gorillawalker.com/myself-as-a-learner-scale-8-16-analysing-self-perception.pdf
    • http://www.gorillawalker.com/i-ve-been-working-on-the-railroad-by-sammy-nestico.pdf
    • http://www.gorillawalker.com/women-versus-men-a-conflict-of-navajo-emergence-the-curly.pdf
    • http://www.gorillawalker.com/special-edition-using-visual-c-6.pdf
    • http://www.gorillawalker.com/chemogenomics-and-chemical-genetics-a-user-s-introduction-for-biologists.pdf
    • http://www.gorillawalker.com/juicy-don-t-judge-a-booty-by-it-s-cover.pdf
    • http://www.gorillawalker.com/masterpiece-3-the-last-love-that-star-gave-to-
    • 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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