Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3a58a333317f547…

MALICIOUS

PDF

60.7 KB Created: 2020-08-05 14:03:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9d29035c3c1bfaedf8dd59daea315f17 SHA-1: acaffd28fc07a9a86fdfb044bf41b6f46a4707a7 SHA-256: c3a58a333317f5474681831867316d8501426889b289daba4b6373dccf7eb145
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a legal document. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates the primary URL leads to malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic suggests the document is part of a larger scheme to generate traffic through numerous external links, many hosted on Shopify. The ML classifier strongly supports the malicious nature of this PDF.

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=california+copy+certification+of+power+of+attorney+pdf In PDF document text
    • http://files.newreligioncurriculum.com/uploads/1/3/2/6/132695543/detijulutesikesegora.pdfIn PDF document text
    • http://files.mcaprint.co.uk/uploads/1/3/0/9/130969312/6316963.pdfIn PDF document text
    • http://files.celestecorp.com/uploads/1/3/1/8/131871494/7847019.pdfIn PDF document text
    • http://files.waynevalleyband.com/uploads/1/3/0/7/130775795/4405005.pdfIn PDF document text
    • http://files.atticapothecary.com/uploads/1/3/2/7/132712040/risevutumob.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/1/0434/4958/1730/files/kidosamuledomoxomogeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3861/3415/files/96498853633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6006/0567/files/dulalovafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6917/6985/files/47805968936.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6189/4565/files/80305587833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/glyph_of_the_orca.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2712/8735/files/31111185013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6982/4414/files/59637484696.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5689/0013/files/nusirotixosob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9765/9294/files/time_dilation_and_length_contraction.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0119/0299/files/xunuluvamonenapekesisifu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a164.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA164 3628 bytes
SHA-256: 22a57867eed27c65fe38ffae9e95b678f887fa93064e509d9c8c202c6dcedb7e
font_01_sfnt_off0000ae66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE66 5072 bytes
SHA-256: 4918cc456a7f7a04e93fb7d9d666b4f7fa0eafafc8979816eab19bba5f9ce469
font_02_sfnt_off0000bfd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFD0 10444 bytes
SHA-256: 08f99b3a8c227c8dad9fa348c6f23c3884b441dc821a8c0ac77eac068b9c0c6c

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