Malicious PDF — malware analysis report

Static analysis result for SHA-256 086442298ccd5768…

MALICIOUS

PDF

45.3 KB Created: 2020-08-22 03:44:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f74e6c972db00aed1eb12f3de60e09d SHA-1: 439e41d53b73bfebd3b49cbad0fd4db7c23bd54a SHA-256: 086442298ccd5768faa2d7a06b4af484eb4a0d666855d5a4573c5a8a0131fde3
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a primary URL redirecting to a known malicious domain. The document body and heuristics indicate a phishing lure, likely attempting to trick users into downloading further malicious content or visiting a compromised site. No scripts were extracted, but the PDF structure and embedded links strongly suggest a malicious intent.

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=abdominal+trauma+radiology+pdf In PDF document text
    • http://files.sweet-williams.com/uploads/1/3/1/4/131409677/fipew.pdfIn PDF document text
    • http://files.towtruckmilltownnj.com/uploads/1/3/0/7/130776343/5f6347d.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/1/0432/0854/0315/files/10497028469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8951/7978/files/61225613969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9641/6161/files/king_of_weighted_calisthenics_program.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2562/9335/files/mail_server_configuration_in_linux_step_by_step_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4760/6679/files/angry_face_texting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4081/5774/files/99413985192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3222/9541/files/certificacion_leed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9242/6405/files/20203120302.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3480/4375/files/41156762352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3830/1590/files/xefiviworetanaresepago.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 3

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_off0000740b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x740B 5416 bytes
SHA-256: ba58477ad1656fa7067e19287dba77bc208b8c457f40f2e4e7cdd91e9f49d3a4
font_01_sfnt_off00008662.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8662 10040 bytes
SHA-256: bf96ca392cb1782646a80948f88738c218c9a1a31f5e2108532d0d1ae41b8b65

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