Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd93ed2b1f880bd…

MALICIOUS

PDF

43.3 KB Created: 2020-10-12 04:32:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-26
MD5: ab7db2ccfed8e722dd314e02bc2647f9 SHA-1: df44eec0f872afa015892bd88157f4e9f60b5fcf SHA-256: 3dd93ed2b1f880bd4eca6b986ad7f08e453a106709ba5dff2dba2104c1092996
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://ggtraff.ru/strik?keyword=primal+fear+wiki+ark In PDF document text
    • https://site-1036987.mozfiles.com/files/1036987/52058282101.pdfIn PDF document text
    • https://site-1036699.mozfiles.com/files/1036699/27400639942.pdfIn PDF document text
    • https://site-1036955.mozfiles.com/files/1036955/85589587706.pdfIn PDF document text
    • https://site-1036722.mozfiles.com/files/1036722/lawodenimasadu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/6724/4183/files/husband_visa_application_dubai.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/3540/1633/files/55093162585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3098/6400/files/48262591419.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/8720/2971/files/carpet_cleaning_el_paso_tx.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce24449a-0710-4930-87cd-c85bcc6ca856/bimuwadejonevikokowux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17e5a2b6-f692-4d17-bac7-a7822e77daa0/30623267589.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20326857-c151-4fe0-bc6f-0d31d84204ab/pakuburilenuvuzex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0d8d305-3fb2-439f-9659-d5e89a3bfe5f/damixaresitabufidodalaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc25bf6b-59de-4c3a-86ef-6671ba0ac555/vumukirek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10999a06-674e-4228-9c61-8fa0df4e849c/18607612249.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0eaa802f-3cac-42db-83fb-8a4b13dbfde1/geposolapuxamadojilasawew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ccc1f8d-291b-4a05-a934-e816f03abf8e/dowawolujuzagikixuja.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A65 4892 bytes
SHA-256: f7f1be38b2bef02c8a780afa1fb27151d0f17985b2316599b9ea3d1956df1c0c
font_01_sfnt_off00007b02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B02 10584 bytes
SHA-256: 1cf917ed62fbe25c9789619e62b3c3269e5d9d7c228cf9a82db9414646b8c820

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