Malicious PDF — malware analysis report

Static analysis result for SHA-256 716b6d2db07b583f…

MALICIOUS

PDF

36.1 KB Created: 2020-08-21 18:02:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ca0f08be1bf5c58949d3763adc698d5 SHA-1: f4dffa07eecafbc8ef6ac921c14e89c61568f536 SHA-256: 716b6d2db07b583f7e13cc6e7d0a81547c06f516d1d5b4cda608c9d65ace0175
194 Risk Score

Malware Insights

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

This PDF document contains numerous links designed to appear as a link farm, with a primary malicious redirector URL. The ML classifier strongly indicated maliciousness, and the PDF structure itself is flagged for linking to known malicious infrastructure. The document body, though partially corrupted, contains the malicious URL and references to other PDF files, suggesting a lure for users to click through potentially harmful content.

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=bal+ganesh+video In PDF document text
    • http://files.rayleonardjr.com/uploads/1/3/1/3/131379280/wiwepejomosilow.pdfIn PDF document text
    • http://giguj.reyburnactivities.com/uploads/1/3/1/6/131606505/gevefazefana-xurik.pdfIn PDF document text
    • http://bakuvop.decorativedetails.co.uk/uploads/1/3/2/3/132302780/4781955.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/1/0431/9569/5268/files/95838499883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9073/8328/files/agriculture_books_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8719/0430/files/lugizuvisapizudixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4116/9303/files/nisijakabasebagejiguzolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7983/5549/files/texonegof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/kowuvovanuluseluxewejopog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9050/9973/files/roveropoxidofupokajesaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3444/2908/files/ncert_biology_class_11_short_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8096/5534/files/brokeback_mountain_proulx.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/93527538138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4516/7008/files/78875015363.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 1

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_off00005045.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5045 5100 bytes
SHA-256: 4fd3acd5ddd2ceeb550227b41d9de87b0d2b8c727317eaa817a60e63d75ea230
font_01_sfnt_off0000619c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x619C 10024 bytes
SHA-256: e9cf4c91039aff03c6ed65b6aa0717d90c14eaea8cf541ee7b79490ccb5d4c4f

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