Malicious PDF — malware analysis report

Static analysis result for SHA-256 8758a0c65b8cf943…

MALICIOUS

PDF

42.0 KB Created: 2020-08-23 01:50:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ea3fa11946285a2d4cdd15e750311d3 SHA-1: 3780854f0f1e3f8259271325ee42513e22276a48 SHA-256: 8758a0c65b8cf943257faad756dfb5611652275ce9c4dab754ee699c4a055d41
194 Risk Score

Malware Insights

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

This PDF file contains a large number of embedded links, many pointing to Shopify domains hosting other PDFs, likely for SEO manipulation. One critical finding is a link to 'ttraff.com', identified as a malicious redirector. The ML classifier strongly indicates maliciousness, and the overall structure suggests a phishing or malicious redirection attempt.

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=audible+audiobooks+to+iphone In PDF document text
    • http://files.cdl-canberra-ec.com/uploads/1/3/1/4/131406843/pukurajagefapu_xamuwos_togomisojor.pdfIn PDF document text
    • http://files.inspire-montessori.com/uploads/1/3/1/4/131454620/genusegexeta_xokosizufepu.pdfIn PDF document text
    • http://files.pocketwinemaker.com/uploads/1/3/2/6/132682338/kelosofatofemitakoji.pdfIn PDF document text
    • http://borumap.viana-motion.com/uploads/1/3/2/6/132683138/livupurikub.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/1/0428/9835/8432/files/26443777516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6644/1376/files/2014_nissan_sentra_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8803/6505/files/891133827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6282/7935/files/tefexikasixewasaxenejal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2072/2080/files/matimipufazivevadotuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9599/9129/files/quadratic_equation_exercises_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3319/6706/files/76586038517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4452/8550/files/thermal_physics_kittel_2nd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4257/0402/files/46105818980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5301/4423/files/56724522052.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_off000066f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66F1 5144 bytes
SHA-256: f7e8c3913aee447c1910808630972705467b89d0314a03566e02c7eef1c2060a
font_01_sfnt_off00007860.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7860 10260 bytes
SHA-256: 67e31912d30338a870af3e950185d1ca7e542ff65ccb2e3c30f61d9159fab1ac

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