Malicious PDF — malware analysis report

Static analysis result for SHA-256 786616362fc07e14…

MALICIOUS

PDF

45.0 KB Created: 2020-08-08 20:46:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 072b4a82434f2adec011bc2708c58a9f SHA-1: 603533be2fe8ae14c539bc88cce0570dcaca6805 SHA-256: 786616362fc07e141de7ccda4afc49e1dbe660fbffedf0dbe4449c1744cf102d
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious URL, disguised as a UPS manual. The ML classifier strongly indicated maliciousness, and heuristics identified it as a redirector and part of an SEO link farm. The document body itself contains the malicious URL and numerous other links to PDFs hosted on Shopify, likely to improve search engine ranking for the malicious content.

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/wb?keyword=riello%2030kva%20ups%20manual In PDF document text
    • http://salopomi.karinepigeon.ca/uploads/1/3/1/6/131636612/1ef5b4420f75fb.pdfIn PDF document text
    • http://files.thethembaproject.org/uploads/1/3/2/7/132740541/692938.pdfIn PDF document text
    • http://files.valentineorthotics.com/uploads/1/3/0/8/130814017/kakotipaxadovufas.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/1/0431/2177/0656/files/92814695167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7723/7917/files/zezukoremil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38692385895.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7840/9622/files/ruberu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7505/1415/files/ginegivotejujabete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0156/0737/files/71313340434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8086/7235/files/91131218407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6577/8080/files/52041204865.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6836/6760/files/jewapusexowodo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3714/5753/files/48656086314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4854/3142/files/kannada_bible_old_testament_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7618/8315/files/30020194293.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4540/2277/files/treble_clef_staff_paper.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_off00007199.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7199 5304 bytes
SHA-256: e8d0fee269299bd9382eb9717d1423513e237cac360fcd45ca6f7103911d275c
font_01_sfnt_off000083a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83A3 10488 bytes
SHA-256: c49e6f4aaf7192691b52590f90f81e82e7d36afb29edfe720db4939acace2ed7

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