Malicious PDF — malware analysis report

Static analysis result for SHA-256 726406359546b00e…

MALICIOUS

PDF

57.8 KB Created: 2020-08-13 22:29:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ef96bde101032af3ba4068d0df4c3e81 SHA-1: a2b6175c813465e5714e115a3f6dc1e79f5c46c5 SHA-256: 726406359546b00e213801af4995c683c46839509ec0d630c85b927cf2b36f63
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, disguised with a movie title. This is further supported by heuristics indicating the PDF links to known malicious redirector infrastructure and is part of an SEO link farm. The embedded content, though obfuscated, contains the malicious URL, suggesting the document's primary purpose is to drive traffic to this malicious site.

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=film+bunraku+full+movie In PDF document text
    • http://files.hsc3knives.com/uploads/1/3/0/9/130969243/a00465f049b.pdfIn PDF document text
    • http://files.5avedesign.com/uploads/1/3/1/8/131856257/9758174.pdfIn PDF document text
    • http://devama.sacredheartemmett.com/uploads/1/3/1/4/131406153/gudevejatibori.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/80804151078.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9437/5576/files/candidiasis_oral_tratamiento_en_nios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3260/7894/files/rimatavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53635556436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7644/3543/files/sangrado_por_varices_esofagicas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5800/3096/files/79289765957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9551/3505/files/76193643210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1503/5288/files/79305004625.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0497/7564/files/fotozako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6925/0463/files/complexity_and_contradiction_in_architecture_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xikidewutuxazumal.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009804.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9804 4756 bytes
SHA-256: cbe64b33b98d0377151a3c45b89222ba44e7d3048e6f736c6630c8fe80cacca4
font_01_sfnt_off0000a80e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA80E 10488 bytes
SHA-256: d514adddb8f1834d0ad93cf6bc42b0cf9068bbb212ab82ea33bba474c9aa83fc
font_02_sfnt_off0000cbeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBEB 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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