Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8a2cad1cb011acb…

MALICIOUS

PDF

45.4 KB Created: 2018-12-14 20:02:38 +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: 82ed4716d16d2db0764b8b858ac07386 SHA-1: 8469734a58fbc702fd5e207ef4b2fc25b9f39457 SHA-256: e8a2cad1cb011acbe952bcbccd293f123a502d7d687f14de0c8ed53a2250ed25
60 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links pointing to external PDF documents, primarily hosted on www.gorillawalker.com. This behavior is indicative of a link farm or SEO manipulation tactic. While no scripts were extracted, the sheer volume of external links suggests an attempt to drive traffic or potentially distribute further malicious content through these linked PDFs. The attack pattern is inferred from the PDF_SEO_LINK_FARM heuristic.

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-quick-word-handbook-for-practical-writing.pdf
    • http://www.gorillawalker.com/a-smart-kids-guide-to-bustling-barbados-and-stone-age.pdf
    • http://www.gorillawalker.com/random-walk-and-the-heat-equation-student-mathematical-library.pdf
    • http://www.gorillawalker.com/by-robert-zubrin-the-case-for-mars-the-plan-to.pdf
    • http://www.gorillawalker.com/profile-political-leaders-of-the-united-workers-party-of-saint.pdf
    • http://www.gorillawalker.com/the-communist-manifesto-by-karl-marx-friedrich-engels-martin-malia.pdf
    • http://www.gorillawalker.com/the-language-of-food-a-linguist-reads-the-menu-library.pdf
    • http://www.gorillawalker.com/credit-hell-how-to-dig-out-of-debt.pdf
    • http://www.gorillawalker.com/advanced-nutrition-macronutrients-micronutrients-and-metabolism-second-edition.pdf
    • http://www.gorillawalker.com/holy-in-christ-thoughts-on-the-calling-of-god-s.pdf
    • http://www.gorillawalker.com/visual-fractions-a-beginning-fractions-book.pdf
    • http://www.gorillawalker.com/the-catholic-moral-tradition-today-a-synthesis-moral-traditions-and.pdf
    • http://www.gorillawalker.com/the-kingmaker-s-daughter.pdf
    • http://www.gorillawalker.com/rigby-on-our-way-to-english-small-book-6pk-grade.pdf
    • http://www.gorillawalker.com/revolucionarios-por-el-evangelio-testimonio-de-15-cristianos-en-el.pdf
    • http://www.gorillawalker.com/frommer-s-city-guide-to-montreal-and-quebec-city-1991.pdf
    • http://www.gorillawalker.com/the-pr-buzz-factor-how-using-public-relations-can-boost.pdf
    • http://www.gorillawalker.com/mathematical-reasoning-for-elementary-teachers-7th-edition.pdf
    • http://www.gorillawalker.com/making-the-yield-real-estate-hard-money-lending-uncovered.pdf
    • http://www.gorillawalker.com/esquemas-electricos-y-electronicos-spanish-edition.pdf
    • http://www.gorillawalker.com/the-power-of-relaxation-using-tai-chi-and-visualization-to.pdf
    • http://www.gorillawalker.com/gender-space-architecture-an-interdisciplinary-introduction-architext.pdf
    • http://www.gorillawalker.com/im-dienste-der-sache-liber-amicorum-f-r-joachim-gaertner.pdf
    • http://www.gorillawalker.com/mexico-and-central-american-handbook-from-the-rio-grande-to.pdf
    • http://www.gorillawalker.com/uptown-downtown-in-old-charleston-sketches-and-stories.pdf
    • http://www.gorillawalker.com/clinical-pharmacology-in-pregnancy-fundamentals-and-rational-pharmacotherapy.pdf
    • http://www.gorillawalker.com/a-c-becken-co-petitioner-v-the-gemex-corporation-u.pdf
    • http://www.gorillawalker.com/the-night-circus-kindle-edition.pdf
    • http://www.gorillawalker.com/drum-circle-a-guide-to-world-percussion-book-enhanced-cd.pdf
    • http://www.gorillawalker.com/statistics-on-vlsi-designs-cmu-cs-80-111.pdf
    • http://www.gorillawalker.com/survival-skills-for-the-fire-chief-fire-engineering.pdf
    • http://www.gorillawalker.com/building-microsoft-access-applications-business-skills.pdf
    • http://www.gorillawalker.com/sap-bw-data-modeling.pdf
    • http://www.gorillawalker.com/bizarre-bible-stories-flying-pigs-walking-bones-and-24-other.pdf
    • http://www.gorillawalker.com/international-review-of-cell-and-molecular-biology-volume-318.pdf
    • http://www.gorillawalker.com/josefo-las-obras-esenciales.pdf
    • http://www.gorillawalker.com/sae-42-volt-technology-and-advanced-vehicle-electrical-systems.pdf
    • http://www.gorillawalker.com/a-churn-for-the-worse-an-amish-mystery.pdf
    • http://www.gorillawalker.com/the-dance-of-anger-cd-a-woman-s-guide-to.pdf
    • http://www.gorillawalker.com/principles-of-oral-surgery-pergamon-series-in-dentistry-vol-3.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/