Malicious PDF — malware analysis report

Static analysis result for SHA-256 17e86c411a13a1c7…

MALICIOUS

PDF

87.0 KB Created: 2020-08-09 16:00:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ed476c24803e7a931d0a510b664d83cf SHA-1: d4352dd658436eade20e699f730bedc8309be1f1 SHA-256: 17e86c411a13a1c77211a98d0abf20880c0f4da60967c03c310190632a6eb9ec
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to manipulate search engine results and lure users to malicious sites. The embedded URL points to a redirector service, which in turn links to a Shopify domain hosting a PDF, likely as part of a phishing or SEO scam. No scripts were extracted, but the overall pattern suggests a phishing lure.

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://ttraff.ru/pify?keyword=geometria+descriptiva+arquitectura+pdf In PDF document text
    • http://tikoroduf.fullpotentialfitness.net/uploads/1/3/1/6/131637881/lesexi_gefoma_menepunorirukev_funur.pdfIn PDF document text
    • http://files.megangrimesphotography.com/uploads/1/3/1/3/131378791/606b5d6116.pdfIn PDF document text
    • http://files.aghaa.com/uploads/1/3/0/8/130874058/vamikarab.pdfIn PDF document text
    • http://nafemox.annahasseltine.com/uploads/1/3/2/3/132302921/setaf.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/1/0432/9183/6566/files/gadafobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1335/6189/files/ultimate_combat_pathfinder.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7225/7181/files/99385489009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5927/2090/files/canon_p23-_dh_v_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6284/4837/files/daemon_tools_pro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6289/4498/files/roxuxekuvejumuxopuduru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8547/1656/files/scholarship_cover_letter_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3150/2749/files/ruketutanafenififodawiru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/6181/0076/files/buffer_solution_calculation_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4421/6727/files/87262978357.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 5

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_off000114d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114D3 5488 bytes
SHA-256: 169c86e60a9dbdbc926308221d9c8583f63a00567e3041a17045e87b69b0cf8c
font_01_sfnt_off0001276f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1276F 11728 bytes
SHA-256: 33f7cfc3a42ada6c5e451587a9702f1f56661244322355a899d3110ea473c06c

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