Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f3e3d72ada675a7…

MALICIOUS

PDF

48.0 KB Created: 2020-08-12 16:19:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8cdf2fc81c306721dacff2271a504b49 SHA-1: 38a3aae611d8f25d5b60f8dcf2ab2782a78dfa88 SHA-256: 9f3e3d72ada675a7187b224d25e1e7fb0abb08b7d00687f762051930bab3419e
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be part of a link farm or SEO manipulation scheme. The primary malicious URL identified is https://ttraff.com/pify?keyword=asexual+reproduction+in+flowering+plants+pdf, which is flagged as a malicious redirector. The presence of many links to external PDFs, including benign ones on Shopify, suggests a broad distribution or SEO-based lure.

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=asexual+reproduction+in+flowering+plants+pdf In PDF document text
    • http://files.leisureworldtours.net/uploads/1/3/1/6/131636941/xomofuwumar-dajiwarizexet-tazabidebat.pdfIn PDF document text
    • http://gapaxeg.grayden.info/uploads/1/3/1/6/131636664/7d820cd7ea.pdfIn PDF document text
    • http://files.paleowithstyle.com/uploads/1/3/1/6/131637385/517582.pdfIn PDF document text
    • http://files.franhillpharmacy.com/uploads/1/3/1/4/131437064/6257348.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/1/0430/8946/1410/files/35510905179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5392/1957/files/88214549478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vepotarinaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5621/7750/files/46801165639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7108/5475/files/36005398566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1460/9305/files/physiology_ak_jain_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4125/9671/files/kinawujogobowinuvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6920/1832/files/duvifapilubunevobasedutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1483/8679/files/difference_between_assessment_and_evaluation_in_education.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2640/7833/files/16975488907.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6705/6023/files/jidolajupinawafubavivasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4294/7750/files/gegenid.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_off00007d64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D64 5472 bytes
SHA-256: fb59d487b3c24096b87b80e98c2ed925a7f47ed2c7dd624984435d5dbcdfaa87
font_01_sfnt_off00009023.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9023 10156 bytes
SHA-256: fe49b04569a41237ced424207d5b54f1a10c07aafb4c1b8cc78a2de65cfbc6d6

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