Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d34450407a158c5…

MALICIOUS

PDF

35.3 KB Created: 2020-10-30 21:48:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-14
MD5: 83bb0056f2e205a7efc9e73498b8b1be SHA-1: c988927115ee34f9358bdac0ea9b431496add636 SHA-256: 0d34450407a158c57114407a168145aff3ebdb08c424368213acd686ec73e3a3
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://gettraff.ru/wb?keyword=d%20pharmacy%201st%20year%20books%20pdf%20download In PDF document text
    • https://cdn-cms.f-static.net/uploads/4391898/normal_5f956b3edcb15.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378390/normal_5f920a2e81cb9.pdfIn PDF document text
    • https://mosodujisar.weebly.com/uploads/1/3/0/7/130739504/fuwitob-dabafib.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370299/normal_5f91d71e823ca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366952/normal_5f87a27895f67.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366382/normal_5f872d2ecd45d.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/1/0268/6998/9573/files/microlithography_science_and_technology_second_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9182/0711/files/27297219400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/8119/6227/files/maplestory_mobile_character_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/9241/5909/files/sit_and_reach_box_amazon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89c7ab1f-23ac-4d4e-a48f-c2af2f548ce3/sixexovutefofirunupol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/7113/3627/files/4_hour_work_week_summary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2c66231-65d8-4dc0-8bbf-2a31c355f3b1/stardust_parents_guide.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_off000049be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49BE 5844 bytes
SHA-256: ce0233915c67eb9dfa9cff9f8e1190b99d4a27882355af24c7afe00b9da4c70a
font_01_sfnt_off00005d9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D9B 10184 bytes
SHA-256: a7c7496d9b912f0d6d320e100c67f04bcaaeb739cf6962238d4067e90a41d647

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