Malicious PDF — malware analysis report

Static analysis result for SHA-256 84863066818cbcab…

MALICIOUS

PDF

33.2 KB Created: 2020-08-16 21:07:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 04ce0c8dbb01624da122a62d84540404 SHA-1: 79226d732e6033d3ae446d3d58b84c53ff9d90e4 SHA-256: 84863066818cbcab99f6171020909a23da13c234a67d036c92095479bfaccc9a
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious URL, identified as a redirector. The document body also contains the same malicious URL and a benign-looking URL, likely part of a link farm or SEO manipulation tactic to disguise malicious intent. The ML classifier strongly indicates maliciousness.

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=let%2527+s+dance+chris+rea+sheet+music In PDF document text
    • http://files.americanimmigrationpllc.com/uploads/1/3/1/8/131871787/42eddc94.pdfIn PDF document text
    • http://files.mindfulohio.com/uploads/1/3/0/7/130775102/5411798.pdfIn PDF document text
    • http://files.middlesexmachines.com/uploads/1/3/2/8/132815767/vofojez.pdfIn PDF document text
    • http://files.karenkiddlab.com/uploads/1/3/1/3/131380729/3094053.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/1/0432/5212/1762/files/wc3_full_crack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5353/0788/files/jokulepavulovipovug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9866/1279/files/rekefotovowurajadavigajof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/32403907244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6493/3014/files/kezexume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0154/3831/files/buddha_history.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54341666742.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8000/0423/files/30165568792.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_off000044b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44B8 5124 bytes
SHA-256: 011a11ea122ed833ee57991f4834b4a249674ff82eeb205aa93387e5c03f9932
font_01_sfnt_off000055f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55F9 9936 bytes
SHA-256: 36137272b5064c1ee3a9f4bb7b4530268769d382944fd293350c89a83b665141

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