Malicious PDF — malware analysis report

Static analysis result for SHA-256 c03a0d91b344f055…

MALICIOUS

PDF

43.6 KB Created: 2020-08-05 03:40:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f4b66b5ebdabc5b2de5b7b7add585614 SHA-1: 7e0834d1a57b5fd90b21d17c5899ee5628cd172e SHA-256: c03a0d91b344f055dfbb72effb1e4704e4929f6eb4d17b50c7f3496971a6d51f
194 Risk Score

Malware Insights

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

This PDF file contains a large number of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The primary malicious URL is https://ttraff.cc/pify?keyword=barry+schwartz+o+paradoxo+da+escolha+pdf, which is likely used to obscure the final destination and potentially evade detection. The document's structure and content suggest it's designed to lure users into clicking these links, possibly for SEO manipulation or to deliver further malware. The ML classifier strongly supports the malicious nature of this PDF.

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=barry+schwartz+o+paradoxo+da+escolha+pdf In PDF document text
    • http://files.vsaatuva.org/uploads/1/3/0/8/130874001/mitewo-xekuviso.pdfIn PDF document text
    • http://files.sterlingsoccer.org/uploads/1/3/1/4/131455680/nupaz-kojajoni-redumor.pdfIn PDF document text
    • http://files.tubs.ie/uploads/1/3/1/0/131071043/xubas.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/1/0428/1748/7011/files/42806993893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9597/2256/files/sowedegapipupana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0042/9731/files/49100722821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7599/3764/files/rudarut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3485/9941/files/50168762460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3009/3728/files/20503965487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2172/2015/files/74323402674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8039/8486/files/68260202769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7542/7735/files/kuxekesep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6295/1062/files/rspec_vs_cucumber.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9257/3334/files/15351675795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5905/9615/files/vazexuworebaxeponefuzo.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 2

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_off00006be6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BE6 5604 bytes
SHA-256: 1a0d936778e8697b085ccd2a9d97c6ef573dbfd7d5865ed7f34ab2e89ba6402d
font_01_sfnt_off00007f1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F1F 10088 bytes
SHA-256: 2e682a7be01550688ec1dea88d2e77c2cc3014bc17a208569aa7ba2af597d264

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