Malicious PDF — malware analysis report

Static analysis result for SHA-256 592bfd73e82418dd…

MALICIOUS

PDF

37.6 KB Created: 2020-08-17 12:13:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c35855f698c4a54bfdf7a72d463a8b71 SHA-1: 28bd31458795919261fd0f8704037ea8de4eddfb SHA-256: 592bfd73e82418dd068fe7953a8f49fa7849169c5a409ccb4156897239f53215
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing:Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of embedded links, identified as a link farm. One of these links, 'https://ttraff.com/pify?keyword=beretta+92fs+inox+stainless+steel+guide+rod', points to known malicious redirector infrastructure. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of numerous external links, many pointing to Shopify domains, indicates a strategy to manipulate search engine results or distribute malicious content through seemingly benign documents.

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=beretta+92fs+inox+stainless+steel+guide+rod In PDF document text
    • http://files.gurtons.com/uploads/1/3/2/6/132683264/jisuv.pdfIn PDF document text
    • http://files.chefdavidbmorrison.com/uploads/1/3/1/3/131398224/5779367.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6581/8789/files/51455792016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2315/4847/files/air_pollution_effects_on_plants.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0755/8310/files/68997823884.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/5815185758.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6856/3351/files/duxobubid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4032/4256/files/14887622971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2021/2645/files/zufidotonakasu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1040/4000/files/calligraphy_exercises_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1123/4199/files/share_market_basics_in_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9259/0236/files/atomic_structure_class_8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7892/7011/files/proyecto_de_tesis_unalm.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6976/7842/files/setajojekakal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6295/1062/files/64314686189.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
🗂 Part of campaign: chefdavidbmorrison.com 6 samples

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000453b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x453B 5360 bytes
SHA-256: 924233531a0ed43b8122edc65612c48212c30c42f9bac1b79082a03d8a7e06b4
font_01_sfnt_off00005788.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5788 9852 bytes
SHA-256: f7060f7d45e8f0feba0a1b189e179595aad23fb8563e12bf3b2c770109c4c972
font_02_sfnt_off0000793f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x793F 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3