Malicious PDF — malware analysis report

Static analysis result for SHA-256 c34264df3c237e9d…

MALICIOUS

PDF

45.9 KB Created: 2020-08-15 04:11:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: abb2ff1a6d5f5e2b3c10a1a86155fcf5 SHA-1: 24f9f07bc34c182ef55810cbd0295de1afb43708 SHA-256: c34264df3c237e9dcef02466afc772fda360aa173b91f2cb45b053c32dddade9
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious by an ML classifier and contains numerous embedded links. One link points to a known malicious redirector at 'ttraff.com', suggesting a phishing or redirection attempt. The document also exhibits characteristics of a PDF link farm, with many links pointing to Shopify-hosted PDFs, likely for SEO manipulation or to obscure malicious intent. No scripts were extracted, but the presence of malicious redirectors and the overall structure indicate a likely attempt to lure users to 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.com/pify?keyword=ball+shaped+pillow+forms In PDF document text
    • http://files.shulman-writer.com/uploads/1/3/0/7/130739970/a80e4c53c4.pdfIn PDF document text
    • http://files.amershamaccommodation.co.uk/uploads/1/3/1/0/131070737/7917972.pdfIn PDF document text
    • http://kekaxesoj.stdavidssociety.org/uploads/1/3/1/0/131069766/4977921.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/1/0433/1310/2998/files/varoleje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3834/9211/files/restaurant_training_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2720/2205/files/discord_how_to_bold_text.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9083/6645/files/2807929118.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8613/5961/files/calendrier_2020_avec_jours_fris_vacances_scolaires.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4960/7590/files/jirebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3852/0997/files/84823184359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9492/4694/files/diwumibulejonirunivajupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9262/3016/files/kupiruvekukefikik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2985/5393/files/node_js_advanced_tutorial.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_off000073bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73BB 5424 bytes
SHA-256: 3705158f4be9c653a59abd28b97c640aceeaa153dd2e6943360d12fffc680ef1
font_01_sfnt_off00008618.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8618 10800 bytes
SHA-256: ff7dca0ee50157cb0f5f039d861a4eceb5fded230d5cefe1b7c5f38383cb725d

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