Malicious PDF — malware analysis report

Static analysis result for SHA-256 792e04a4dec37f34…

MALICIOUS

PDF

43.8 KB Created: 2020-08-21 07:29:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 82eca0c529702a140078e6e7d7545c68 SHA-1: ae88787e1e2be1e78fdd720d9707abdd91bf3d56 SHA-256: 792e04a4dec37f34b706ab3df8a2f90b4cc420b4878f957d171fa88f93d45b3f
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains references to 'Byron bay surf guide' and the wkhtmltopdf tool, suggesting a lure to disguise the malicious intent. The presence of numerous links, including those to benign Shopify URLs, indicates an attempt to manipulate search engine results or create a link farm, ultimately directing users to 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.ru/pify?keyword=byron+bay+surf+guide In PDF document text
    • http://gonati.christineszinner.com/uploads/1/3/2/6/132681352/5016302.pdfIn PDF document text
    • http://files.kyammo.com/uploads/1/3/1/4/131406403/fulizimunepapim.pdfIn PDF document text
    • http://sovuvejik.aliturnerpiper.com/uploads/1/3/0/7/130739835/ffc89564aef1f09.pdfIn PDF document text
    • http://files.amandairl.com/uploads/1/3/0/7/130740596/kizitavoxafabavo.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/1/0429/6749/8911/files/vabukenexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2779/9969/files/91262004672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9306/5877/files/atlas_of_regional_anesthesia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2557/5581/files/english_vocabulary_words_with_meaning_in_gujarati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5725/8401/files/alphabet_spelling_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1800/2340/files/97084154128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/0319/4007/files/judor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/jisexuromepotavixujelax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6269/7894/files/ninodinixubosodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3314/1149/files/bilirrubina_directa_o_conjugada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0270/7616/files/peak_getfueled_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7400/0798/files/54085487804.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 4

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_off00006ce7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE7 5336 bytes
SHA-256: f110d23443386018e1e0e2c1e1de77ad9c195ea73b7056859d9aa8d0697de408
font_01_sfnt_off00007f1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F1A 10440 bytes
SHA-256: cbf06c6370d3b93c129cb782da306bc950dcbdd081e64362eb70f25e127fa0d8

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