Malicious PDF — malware analysis report

Static analysis result for SHA-256 75657e4e13ba2d60…

MALICIOUS

PDF

48.0 KB Created: 2020-08-12 08:54:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 470e5b52d7420753a77c53c3f009330d SHA-1: ecfcb16c11ebe395c43caa747146dffe889cf5bb SHA-256: 75657e4e13ba2d60f2a92d0b6f172c643b91a0ccf6eff2d8b4896234536cc0fa
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, masquerading as a checklist. One of these links, https://ttraff.com/pify?keyword=boards+and+beyond+checklist+pdf, is identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains embedded URLs that likely lead to further malicious content or phishing pages.

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=boards+and+beyond+checklist+pdf In PDF document text
    • http://files.drescher.photos/uploads/1/3/1/4/131406181/nidefixowibuf_zepumopa_bageraluv.pdfIn PDF document text
    • http://jiviruwal.stmarysbrollagh.com/uploads/1/3/1/6/131636725/9497246.pdfIn PDF document text
    • http://gumegaje.doyouknowhim-nh.org/uploads/1/3/0/7/130775387/781f4bc7ca0361c.pdfIn PDF document text
    • http://files.regencyparkcary.com/uploads/1/3/1/4/131454270/8102637.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/1/0440/6778/2808/files/34058427456.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/wudavuvesazutetoluwafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2587/2549/files/63237089656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5856/9128/files/jajupokikokabij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2240/1185/files/vajafoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8553/6159/files/42632770851.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3690/8439/files/rapidex_english_speaking_course_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2198/4166/files/21249511936.pdfIn 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/1/0433/6038/7240/files/safety_shoes_catalogue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tazoxusejeko.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_off00007dae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DAE 5600 bytes
SHA-256: b6f4c7b55a0bc1de811999a2ebec956baa9c5daacd2975da1b44a83065304c2a
font_01_sfnt_off000090ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90AB 10120 bytes
SHA-256: dbdcfc8498b3e66b881ae35842a2869f6c39971b180ee2911b7602f588ff05a5

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