Malicious PDF — malware analysis report

Static analysis result for SHA-256 4946c915392fc5f1…

MALICIOUS

PDF

47.0 KB Created: 2020-08-05 01:29:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 495a0fa9a5bb22db183b412484da76fb SHA-1: 982d093fdaf48ca571f9d5d6e54c8ddbd59083fd SHA-256: 4946c915392fc5f13a9ad32e1956c9498f4aa966341e63a4b5c68509cb7dfe55
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, includes the text 'Ascaris suum in pigs pdf' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of multiple shopify.com links indicates a link farm strategy to obscure the malicious destination.

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=ascaris+suum+in+pigs+pdf In PDF document text
    • http://files.clinicalambassador.com/uploads/1/3/1/4/131438397/6549405.pdfIn PDF document text
    • http://files.michellestartzmanmetalwork.com/uploads/1/3/0/9/130969306/diwodi.pdfIn PDF document text
    • http://files.okaykosmetics.ca/uploads/1/3/1/8/131856166/sisokez.pdfIn PDF document text
    • http://zitijini.senbukankarate.com/uploads/1/3/1/4/131483337/welabos.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/1/0430/9745/6801/files/15699158916.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5005/0460/files/gixiworitufepokitonurer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7075/8820/files/15765557678.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3005/9940/files/bujagezubirapuveba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9549/0721/files/gukomajexukatesuxuvoxikin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3917/8399/files/ccna_100_125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/pet_smart_coupons.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0760/4896/files/vixefopujive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3031/5159/files/76708158472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/tigusezabanapavixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0681/9493/files/93801692405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/kontakt_5_keygen.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 6

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_off00007a42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A42 5432 bytes
SHA-256: 90dbb35557830d9e20f3dac226ac1e446b2245b5e46ab181055cb336a370f273
font_01_sfnt_off00008caa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CAA 10104 bytes
SHA-256: 802c8dca341d56e0e33c04b01aaf31ca2918ff760d0bf240c3ae4adb88f38134

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