Malicious PDF — malware analysis report

Static analysis result for SHA-256 34065ee54da9d64d…

MALICIOUS

PDF

44.9 KB Created: 2020-08-12 04:26:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6efd52169b0eaddc5fce7b532300b36b SHA-1: 9018aedcc2b00446dff7a6a6b950cd2bbd2f53e0 SHA-256: 34065ee54da9d64dafdff5a73242c17392d52b41c26b659901733bdf809047d3
194 Risk Score

Malware Insights

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

The PDF contains a lure for "geological engineering pdf" and redirects to a link farm hosted on ttraff.com, which is identified as malicious redirector infrastructure. The document body itself contains numerous embedded URLs pointing to various PDF files, many hosted on Shopify, suggesting an attempt to create a link farm or distribute further malicious content. The ML classifier strongly indicates maliciousness.

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=geological+engineering+pdf In PDF document text
    • http://files.reading2reading.com/uploads/1/3/0/9/130969555/49253ecafb.pdfIn PDF document text
    • http://files.cheshirecareerhub.net/uploads/1/3/0/7/130738903/171002.pdfIn PDF document text
    • http://parop.ucfifc.com/uploads/1/3/0/9/130969352/4986591.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/1/0432/1103/0690/files/nibomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9139/3698/files/dazekajolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9244/3303/files/53255870431.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0948/1624/files/89206763129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4046/3255/files/mafuturidovujipubezus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7767/1843/files/ripexika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5463/5937/files/hematology_test_procedure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8704/4510/files/air_pollution_control_a_design_approach.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0401/0389/files/career_paths_medical_teacher_s_book.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_off00007269.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7269 5176 bytes
SHA-256: 30d58d9e4e13299228fcf91807144b778713287e288f3d07b2260ac62dfea73f
font_01_sfnt_off00008417.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8417 10304 bytes
SHA-256: a50c13c1bc6bf9a992fd908fd19df21a731bedb4b6f5844356263dfbc5e3b5bf

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