Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f85409ff0c0be67…

MALICIOUS

PDF

36.4 KB Created: 2020-08-23 15:54:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 2089b18d8077648fe8f08552e399f8e7 SHA-1: 5edda6ffc748ac0e830457c487b31b614c19bf9f SHA-256: 9f85409ff0c0be6778d486fd9477f8ab27985cb0873df857a292dd5e57ba841a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=the+old+governess+reading+plus+answers', which is designed to lead users to harmful content. Additionally, the document functions as a link farm, embedding numerous external PDF links, many of which point to Shopify domains. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that this is a malicious document delivery mechanism.

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=the+old+governess+reading+plus+answers In PDF document text
    • http://files.sebandmili.com/uploads/1/3/1/4/131408103/murafikezaxumaf-tabekuwaromava-tejino-vivivege.pdfIn PDF document text
    • http://files.samswen.com/uploads/1/3/1/3/131383426/aff827c9.pdfIn PDF document text
    • http://puvoleli.raychenclay.com/uploads/1/3/0/8/130813509/f796aab6.pdfIn PDF document text
    • http://getirurik.renewyoubodywork.com/uploads/1/3/1/0/131070420/mazilopof_gokexixe_wakiwemobumeg_tafoti.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/1/0427/9051/8940/files/45322349855.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1514/2551/files/chaos_knights_40k_vk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4097/1674/files/nanuxoxozalaturufenowen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3626/9983/files/blank_page_with_border.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/57480082087.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7531/9448/files/84787993783.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3696/5026/files/fishing_guides_in_clearwater_florida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3154/3463/files/73745500993.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 3

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_off000050b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50B0 5324 bytes
SHA-256: d7ff9c9edb3f068e011bed9b300a961ca6138916dd76199c7a563dc628440bb7
font_01_sfnt_off000062de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62DE 10024 bytes
SHA-256: dda117fafe9975847a2c17e5b510c8671a4bae84a89c5dbfe06aaadf00c8e9a5

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