Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb4f97cb0c649fdd…

MALICIOUS

PDF

44.7 KB Created: 2019-03-17 13:19:24 +03:00 Authoring application: pdfTeX-1.40.14 (via Revision 5)
MD5: 8f42e4d207f38a0a388c9b358bf5bbed SHA-1: d0f75692fb832d1ee577139e3e58bc912313c2c7 SHA-256: cb4f97cb0c649fdd294db5b4a3c089b8d9634281b43af777d55c82e713eebe3b
60 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded URLs pointing to external PDF files, indicating a link farm or redirection strategy. The heuristic 'PDF_SEO_LINK_FARM' confirms this behavior, suggesting the document is designed to drive traffic to these external resources. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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-triangle-shirtwaist-factory-fire-disasters-in-history.pdf
    • http://www.gorillawalker.com/ark.pdf
    • http://www.gorillawalker.com/common-law-and-ucc-contracts-law-for-colleges-book-version.pdf
    • http://www.gorillawalker.com/taking-a-stand-against-bullying-a-parent-s-guide.pdf
    • http://www.gorillawalker.com/transport-phenomena-a-unified-approach-by-brodkey-robert-s-hershey.pdf
    • http://www.gorillawalker.com/la-diosa-de-los-evangelios-en-busca-del-aspecto-femenino.pdf
    • http://www.gorillawalker.com/v-bombers-valiant-vulcan-and-victor-crowood-aviation-series.pdf
    • http://www.gorillawalker.com/10-001-titillating-tidbits-of-avian-trivia.pdf
    • http://www.gorillawalker.com/seeing-in-the-dark-reflections-on-dreams-and-dreaming.pdf
    • http://www.gorillawalker.com/full-auto-mac-10-modification-manual.pdf
    • http://www.gorillawalker.com/the-abundance-code-how-to-bust-the-7-money-myths.pdf
    • http://www.gorillawalker.com/the-growth-of-nursing-home-care.pdf
    • http://www.gorillawalker.com/first-aid-for-birds-an-owner-s-guide-to-a.pdf
    • http://www.gorillawalker.com/air-war-in-the-gulf-1991-osprey-combat-aircraft-27.pdf
    • http://www.gorillawalker.com/the-midas-a-professional-manual.pdf
    • http://www.gorillawalker.com/diogenes-of-sinope-the-man-in-the-tub-contributions-in.pdf
    • http://www.gorillawalker.com/rothmans-football-yearbook-1998-99.pdf
    • http://www.gorillawalker.com/karen-and-brett-at-326-harper-s-cove-harper-s.pdf
    • http://www.gorillawalker.com/collins-secondary-social-studies-for-the-caribbean-student-s-book.pdf
    • http://www.gorillawalker.com/guide-to-the-western-mediterranean-including-southern-spain-northern-africa.pdf
    • http://www.gorillawalker.com/simply-for-two-39-green-smoothie-recipes-detox-lose-weight.pdf
    • http://www.gorillawalker.com/venezuela-a-study-of-the-international-travel-market.pdf
    • http://www.gorillawalker.com/dementia-care-a-care-worker-handbook.pdf
    • http://www.gorillawalker.com/tantric-massage-the-beginner-s-guide-learn-the-ancient-art.pdf
    • http://www.gorillawalker.com/aausc-2014-volume-issues-in-language-program-direction-innovation-and.pdf
    • http://www.gorillawalker.com/babar-visita-otro-planeta-babar-series.pdf
    • http://www.gorillawalker.com/the-literary-cultures-of-east-central-europe-series-history-of.pdf
    • http://www.gorillawalker.com/helheim-volume-1-the-witch-war.pdf
    • http://www.gorillawalker.com/marriage-domestic-life-and-social-change-writings-for-jacqueline-burgoyne.pdf
    • http://www.gorillawalker.com/trepak-russian-festival-dance-sheet-music.pdf
    • http://www.gorillawalker.com/genetic-counseling-for-adult-neurogenetic-disease-a-casebook-for-clinicians.pdf
    • http://www.gorillawalker.com/encyclopedia-of-family-health-first-aid.pdf
    • http://www.gorillawalker.com/moons-2016-calendar.pdf
    • http://www.gorillawalker.com/the-gods-of-the-egyptians-volume-1.pdf
    • http://www.gorillawalker.com/dialectical-behavior-therapy-skills-training-with-adolescents.pdf
    • http://www.gorillawalker.com/el-desaf-o-del-amor-para-cada-d-a-devocionales.pdf
    • http://www.gorillawalker.com/big-bug-little-bug-first-words.pdf
    • http://www.gorillawalker.com/introductory-statistics-student-solutions-manual.pdf
    • http://www.gorillawalker.com/practical-electron-microscopy-in-materials-science.pdf
    • http://www.gorillawalker.com/the-ghost-rockets-mystery-missiles-and-phantom-projectiles-in-our.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/