Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4518e4d515def08…

MALICIOUS

PDF

41.4 KB Created: 2020-08-21 20:47:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 60b21831320604783f6c4743ada10465 SHA-1: 7ca0ade3fbbf28e2de9c6cfaad2649fd6a2325b2 SHA-256: b4518e4d515def08e3b70be878ae3880699cee6c7de6c9ae84fb4f313de9562d
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to a URL that spoofs a 'baltimore county police traffic accident reports' search. This URL is designed to redirect users to malicious infrastructure. The document body contains this URL and other links, suggesting a social engineering lure to trick users into clicking the malicious link.

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=baltimore+county+police+traffic+accident+reports In PDF document text
    • http://files.johnblanke.com/uploads/1/3/2/3/132303286/5245317.pdfIn PDF document text
    • http://pomidebe.banginhardfireworks.com/uploads/1/3/2/6/132681482/tumipepesinez-fivigut-tipunuripokoge.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/1/0436/5497/1557/files/lujasewawesi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9739/1261/files/bar_graph_matplotlib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2307/2412/files/59857152894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2129/5003/files/attack_on_titan_ova_no_regrets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jojanasesejunuveko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/27360052690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5021/2264/files/sustainable_building_design_manual_teri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5428/5479/files/felijizepesezofufab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0496/0661/files/51780192133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4910/6080/files/game_offline_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4853/2128/files/14320810450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8278/4676/files/89441716277.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 5

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_off00006355.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6355 5452 bytes
SHA-256: d872f575b3e48aed08105dac5133c0ea4c66c97e8a7c2b570a06eca66f09e404
font_01_sfnt_off000075d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75D3 10020 bytes
SHA-256: f65550acb03e5cef4459a8c600a1cc80916df2a3b98f590a634b954a227f8357

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