Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a9a99afa0cfdee8…

MALICIOUS

PDF

34.0 KB Created: 2020-08-18 14:12:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e79b74f239220298e9ced1c6c7f78fe SHA-1: 48384a9c334167457065f4a4d1c172afa0938793 SHA-256: 9a9a99afa0cfdee8b3cc3e9663748a276c20cb56830b1c75cec4fe56e44f7aa9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.cc/pify?keyword=hartshill+school+ofsted+report+2017`. This link is embedded within the document body, suggesting a social engineering lure to trick users into clicking it. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on `cdn.shopify.com`, likely to improve search engine ranking for deceptive 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.cc/pify?keyword=hartshill+school+ofsted+report+2017 In PDF document text
    • http://files.simonbradfieldphotography.com/uploads/1/3/0/7/130739155/1494997.pdfIn PDF document text
    • http://files.windsweptpoodles.net/uploads/1/3/0/7/130738675/1309d765a1.pdfIn PDF document text
    • http://files.waiwichita.org/uploads/1/3/0/8/130814351/xobedax.pdfIn PDF document text
    • http://files.phimi.pt/uploads/1/3/1/8/131871569/jojikupikavamef.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/1/0434/4355/2416/files/rovunup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0645/1094/files/wedag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4655/2227/files/79345680193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2348/2525/files/jspdf_autotable_font_style.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3510/6203/files/anger_management_therapy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8082/7558/files/telugu_baadshah_movie_songs_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0635/9714/files/pirokopurij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2957/6352/files/how_to_download_fonts_to_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0564/8791/files/rapid_typing_for_windows_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/2695/8747/files/gisowagoboluveraraxunebux.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_off000047ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47EE 5608 bytes
SHA-256: 85b1b1cc398c7f2eaebce2ec9375f239e96a52697c2519bdecb13d3f5e6fa8ca
font_01_sfnt_off00005afb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AFB 9500 bytes
SHA-256: 91d1d0ffec13a94116d65bed5f6f3abfb32012eb4827827187990c8930b0a5e2

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