Malicious PDF — malware analysis report

Static analysis result for SHA-256 800253f4f18779c7…

MALICIOUS

PDF

31.4 KB Created: 2020-08-03 08:49:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8a75de0daefb685e502f51bf9df6adb2 SHA-1: 4af36be84ec5c6ddb287adf1f9d20980ce3bcf7e SHA-256: 800253f4f18779c76201b539e8d8a4ca1e73effc2b907b0cfaba7d6b85908c32
194 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to a redirector, which is a common technique for distributing malicious content or phishing pages. The embedded URL 'https://ttraff.ru/pify?keyword=accuweather+newark+nj' is identified as a malicious redirector, likely leading to a phishing or malware download site. The ML classifier strongly indicates maliciousness, and the presence of numerous external links suggests an attempt to obfuscate the final destination.

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=accuweather+newark+nj In PDF document text
    • http://files.technologyisforeverybody.com/uploads/1/3/1/4/131453432/323698.pdfIn PDF document text
    • http://files.morrisseywellness.com/uploads/1/3/1/4/131452922/gakuw.pdfIn PDF document text
    • http://files.asampoh.com/uploads/1/3/1/6/131636678/gotem.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/1/0430/2589/1479/files/rigonadimarokora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8915/8554/files/bupabiburizugejumiseli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xizujebekox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7618/9346/files/lowes_bloomfield_ct.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3886/6593/files/gejora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/nidab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2969/2577/files/modurujisirefozuno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9776/0668/files/saxisesodolanadajetimixo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1040/0153/files/84955814168.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8772/2648/files/how_to_save_finale_file_as.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 4

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_off00004211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4211 4896 bytes
SHA-256: 460bc822f67c58bd4c0e7f38831b43a356221d3e444d4401669b93ea49dbdbe0
font_01_sfnt_off000052c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52C9 8912 bytes
SHA-256: 3633a759bfed6512dfacc28bbdd14ca9582fe60c466d0fac5b2cb641517bd42c

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