Malicious PDF — malware analysis report

Static analysis result for SHA-256 75db7c15b2e1b96e…

MALICIOUS

PDF

38.9 KB Created: 2020-08-21 01:02:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bb2e1bc8fe7d33ad9c8980608c1536e9 SHA-1: f5868a17f1faf26da400127d9713dad7e5360cc2 SHA-256: 75db7c15b2e1b96e2ef67410daeeb4d40237e6d348f94cb2b08dbdd24df4b8ce
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or phishing lure. The document body and heuristics indicate an attempt to trick users into clicking a link, likely for malicious purposes. The ML classifier strongly supports the malicious verdict.

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=factoring+quadratic+functions+worksheet In PDF document text
    • http://lukiz.marquialewisfoundation.org/uploads/1/3/0/7/130775735/narezuwiwijivaf-legenexusid-sexaxajig.pdfIn PDF document text
    • http://files.alexisborth.com/uploads/1/3/1/4/131411688/dupatimevin.pdfIn PDF document text
    • http://files.created4youfoods.com/uploads/1/3/2/8/132814958/pakugiwew.pdfIn PDF document text
    • http://files.fingers4hiretranscription.com/uploads/1/3/1/4/131437770/ruxojaponewi.pdfIn PDF document text
    • http://reledatuk.furryzines.com/uploads/1/3/1/1/131163599/noxifuxug.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/1/0439/5024/3995/files/good_aquaculture_practices.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2823/3883/files/how_to_install_eclipse_in_ubuntu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36149341097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5802/1027/files/kaxavujigunal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2718/5316/files/crochet_patterns_book_300_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9224/5666/files/76725051531.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8580/0358/files/google_slides_dimensions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6243/3694/files/adding_fractions_with_different_denominator_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0936/6427/files/50305394798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5338/3833/files/rubitebavinuwiriko.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_off00005a8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A8F 5488 bytes
SHA-256: 0a26a8f99ff7cff09412b3e99c921ce3fb12183901240fdd43dc8c096a274b30
font_01_sfnt_off00006d40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D40 9880 bytes
SHA-256: 014ac85e723a80fe75118c72143776ef48b176f3c81a6e2b7b0d2096824db79d

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