Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b52fad313452202…

MALICIOUS

PDF

41.6 KB Created: 2020-08-20 09:24:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e14070b3d126cb4a8b65a360a50f27bc SHA-1: ba0ced7ee903a50bfc96fa285fbfa5daa1d8feec SHA-256: 3b52fad313452202fe1e606ede62988446090bc472302098de8f577b16da7118
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link that redirects to a known malicious infrastructure, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'Bus ticket format in word' and the malicious URL. The PDF_SEO_LINK_FARM heuristic indicates a mass of external links, suggesting a link farm or SEO poisoning attempt. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious nature of the file.

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=bus+ticket+format+in+word In PDF document text
    • http://files.riverranchgoldens.com/uploads/1/3/1/6/131607163/kiwefo_povisukuxadez_lixozibi.pdfIn PDF document text
    • http://files.riataliadesigns.com/uploads/1/3/1/4/131483138/13986ab9e1a.pdfIn PDF document text
    • http://lovisex.lechicacademy.com/uploads/1/3/2/8/132814930/6629424.pdfIn PDF document text
    • http://navew.taiwanhotelnews.com/uploads/1/3/0/8/130813714/pumenixuwifo.pdfIn PDF document text
    • http://files.kategarrettwrites.co.uk/uploads/1/3/2/7/132741556/nevur_logejovumure_lozati.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/1/0434/0128/1701/files/64869307452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1888/7073/files/kanor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6402/5493/files/21935913347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4190/7100/files/nfl_collective_bargaining_agreement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9405/6861/files/annuities_tables.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5959/2864/files/halo_glasslands.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6006/0567/files/kijofexusefusimibonawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0954/6136/files/bipegol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2836/4968/files/42130735033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4518/9794/files/89829099516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4645/1862/files/discord_how_to_setup_webhooks.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_off00005d10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D10 5340 bytes
SHA-256: 23689c9446eb168bc1a5c3f4f88157b873b6b948211afa4d0cf5da63c5cd21ee
font_01_sfnt_off00006f34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F34 13696 bytes
SHA-256: b76c46db498eb8d200fa97c030db19ab1b559029c59d848962cc5d65ed31f3be

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