Malicious PDF — malware analysis report

Static analysis result for SHA-256 585ebf66c0a1a4fb…

MALICIOUS

PDF

40.9 KB Created: 2019-04-04 13:38:53 +03:00 Authoring application: pdfTeX-1.40.14 (via Revision 5)
MD5: a751cb4f89b3d967915b8e8c93ab5546 SHA-1: 7793b1c2142a5ae858af6ef948efa891155082cb SHA-256: 585ebf66c0a1a4fb94e69c57d4db6fbae0d4ee5201c114a32e88377343c5eacf
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing 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 unreadable.

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/use-of-wood-and-plywood-in-architectural-woodwork-in-relationship.pdf
    • http://www.gorillawalker.com/the-story-of-iona.pdf
    • http://www.gorillawalker.com/indian-drama-in-english-a-kaleidoscopic-view-kindle-edition.pdf
    • http://www.gorillawalker.com/la-biblia-levanta-la-tapita-spanish-edition.pdf
    • http://www.gorillawalker.com/strange-shores-murder-in-reykjavik.pdf
    • http://www.gorillawalker.com/wings-of-a-poet-49-collections-of-love-romance-epic.pdf
    • http://www.gorillawalker.com/far-from-the-tree-young-adult-edition.pdf
    • http://www.gorillawalker.com/stock-photographs-the-fort-worth-fat-stock-show-and-rodeo.pdf
    • http://www.gorillawalker.com/funklenkpanzer-a-history-of-german-army-remote-and-radio-controlled.pdf
    • http://www.gorillawalker.com/skateboarding-ramp-tricks.pdf
    • http://www.gorillawalker.com/an-absolute-sort-of-certainty-the-holy-spirit-and-the.pdf
    • http://www.gorillawalker.com/oral-medicine-colour-guide.pdf
    • http://www.gorillawalker.com/burmese-lessons-a-true-love-story.pdf
    • http://www.gorillawalker.com/pilgrimage-a-very-short-introduction-very-short-introductions.pdf
    • http://www.gorillawalker.com/rumanian-aces-of-world-war-2.pdf
    • http://www.gorillawalker.com/because-god-loves-stories-an-anthology-of-jewish-storytelling.pdf
    • http://www.gorillawalker.com/asset-protection-for-business-owners-and-high-income-earners-how.pdf
    • http://www.gorillawalker.com/bir-t-rk-bir-turkish-edition.pdf
    • http://www.gorillawalker.com/the-two-milpas-of-chan-kom-a-study-of-socioeconomis.pdf
    • http://www.gorillawalker.com/caring-for-the-sick-and-elderly-a-parish-guide.pdf
    • http://www.gorillawalker.com/yakuza-japan-s-criminal-underworld-expanded-edition.pdf
    • http://www.gorillawalker.com/yuri-gagarin-and-the-race-to-space-adventures-in-space.pdf
    • http://www.gorillawalker.com/maze-puzzles-over-100-amazing-and-perplexing-mazes.pdf
    • http://www.gorillawalker.com/djibouti-sudoc-prex-3-10-4-d-64-2.pdf
    • http://www.gorillawalker.com/grand-canyon-s-east-rim-drive-westbound-cd.pdf
    • http://www.gorillawalker.com/the-denver-gathering-guide-a-directory-of-activities-for-singles.pdf
    • http://www.gorillawalker.com/secret-diplomatic-history-of-the-eighteenth-century-1899.pdf
    • http://www.gorillawalker.com/vladimir-solov-ev-and-the-knighthood-of-the-divine-sophia.pdf
    • http://www.gorillawalker.com/let-dai-vol-1-v-1.pdf
    • http://www.gorillawalker.com/complete-irish-flute-book-cd-set.pdf
    • http://www.gorillawalker.com/autism-the-nice-guideline-on-recognition-referral-diagnosis-and-management.pdf
    • http://www.gorillawalker.com/opto-mechanical-systems-design-fourth-edition-two-volume-set.pdf
    • http://www.gorillawalker.com/the-reader.pdf
    • http://www.gorillawalker.com/music-minus-one-flute-recorder-or-violin-veracini-four-sonatas.pdf
    • http://www.gorillawalker.com/the-wifeshare-collection-three-erotic-hotwife-stories.pdf
    • http://www.gorillawalker.com/physical-conditioning-the-sandow-lewis-library.pdf
    • http://www.gorillawalker.com/history-of-the-town-of-fitchburg-massachusetts-comprising-also-a.pdf
    • http://www.gorillawalker.com/early-railway-chemistry-and-its-legacy-rsc.pdf
    • http://www.gorillawalker.com/reflective-network-therapy-in-the-preschool-classroom.pdf
    • http://www.gorillawalker.com/all-god-s-critters.pdf
    • http://www.gorillawalker.com/funklenkpanzer-a-history-of-german-army-remote-and-radio-controlled
    • 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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