Malicious PDF — malware analysis report

Static analysis result for SHA-256 071d717cfe2138e5…

MALICIOUS

PDF

35.9 KB Created: 2020-11-09 17:08:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 7e224f9453f3de0a8b1da7aee73f06cc SHA-1: e26c1aeddca7252b2ea76c800ba185fbf86d5483 SHA-256: 071d717cfe2138e54f495296d01c98027e14f04792acd0dc8588bd958e4fd6d6
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://cctraff.ru/aws?keyword=ryan+petersen+harlan+iowa In PDF document text
    • https://kofukupapakube.weebly.com/uploads/1/3/4/5/134586312/duxufo.pdfIn PDF document text
    • https://relogeseji.weebly.com/uploads/1/3/0/7/130739887/bexilibizixeba.pdfIn PDF document text
    • https://pepisukuwen.weebly.com/uploads/1/3/1/6/131606293/7865484.pdfIn PDF document text
    • https://gedaxafi.weebly.com/uploads/1/3/4/3/134340736/xivigepubate.pdfIn PDF document text
    • https://wevuviwujito.weebly.com/uploads/1/3/1/6/131636984/705ec1e3dc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a37fd7c9-3292-42dd-8bd2-dff39e2362ee/irulu_manuals_customer_service.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f9f75a1-03ee-4f44-a97a-428ca3d8e9cf/5e_artificer_guide_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b5039bb-59f3-4e07-b805-4ab153178ef5/678368479.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c95cb9f-1ea1-42c9-a7fe-bd28e50b890b/49497336385.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/093b6370-302f-4292-b84a-578a96abfdc2/fugororixofiwoset.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f52cec5-4424-430b-bc59-0abf0acb0178/1692056057.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b333f6f-ba10-46ce-8182-806a29c655ec/wumipugokedi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fcc58be5-fb66-4ae0-9e21-5a33f2dfb006/86750521332.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54c8d9a4-7539-4715-baa2-baf7e5cc295e/four_weddings_where_are_they_now.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3484c6fa-9a88-45f6-8ddd-30a82015de82/classic_tetris_nes_unblocked.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/604c8680-b707-4f9d-83b7-a05ba66363b7/daduvopesiruxomuliribal.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004dbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DBD 5108 bytes
SHA-256: 4faef1a8b6efde145e9f5b766e3974694b9a11085c5d7e764483e0b87b26c7a8
font_01_sfnt_off00005f33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F33 10636 bytes
SHA-256: e5a3d1c9ec6b86cc4e10cd86fde3fcc880392d036dc1e2e72f22c60909f9f6e8

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