Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a1192e70a2065af…

MALICIOUS

PDF

46.5 KB Created: 2020-10-30 09:58:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-30
MD5: e4e67e6504b45f851dc764f60be6895e SHA-1: 8cfb8621a25da196c3ae417dd27a24de583425ab SHA-256: 5a1192e70a2065af487cafc3e6ae55bb7b97d85037fea3ac7928f1a21540c70b
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=ir%20proximity%20sensor%20touchless%20door%20bell%20pdf In PDF document text
    • https://murenazomof.weebly.com/uploads/1/3/4/0/134012525/6987113.pdfIn PDF document text
    • https://tubenuluni.weebly.com/uploads/1/3/1/4/131437864/1656af1231eb9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365636/normal_5f929551a054e.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/8832de05-54c3-4cdb-a6a9-bd7bc21a71b0/estandares_de_calidad_educativa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad516b82-aad6-4ee3-883f-defe5125f82b/elementary_analysis_solutions_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d796532-2bd3-4d07-b822-92d64a6d7fbe/mojitewupewul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53168215-3f49-4260-ba13-537941294f9f/24858931665.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a12dacb7-671c-4d95-89fe-471ef9220cd0/83553759553.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2152ad6-31cb-458d-8000-ce900b402011/56117363706.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/460e0d4b-ce05-4fac-b1d6-b2cf020aabe8/vuzidotujigejogup.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/616f2df1-1146-49c7-bcc8-90ade92e4318/zofefugunok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b01c3549-e910-4649-955a-41f7d2ee4028/89664738530.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_off000073bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73BB 5432 bytes
SHA-256: 2f29966f829412a1f0cb504f6c25ce90020aadff0b3c62dc2f097d87ddd678f9
font_01_sfnt_off00008615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8615 11492 bytes
SHA-256: 22afb96145780ab884fdebff38d3170f6bf3bf847343ce5157dc36c5dd8b358a

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