Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5c80f176b0b7bd9…

MALICIOUS

PDF

33.8 KB Created: 2020-08-26 04:11:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 43b5f0b10686f4583905a9db7281e80b SHA-1: add7072a40478d1302cf39d3d988e8df309b3ee0 SHA-256: e5c80f176b0b7bd9a2dbf53b85a5f8c3624e2ca6eb3c6a8ab901014c598bc026
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, identified as a PDF link farm. One of the primary links, 'https://ttraff.ru/pify?keyword=wong+pediatric+nursing', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to the same malicious URL, suggesting an attempt to drive traffic to potentially harmful content. The presence of numerous Shopify-hosted PDF links indicates a coordinated effort to manipulate search engine results or distribute content through a seemingly benign platform.

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=wong+pediatric+nursing In PDF document text
    • http://dolonobin.d-dcrafts.com/uploads/1/3/1/3/131383483/rawopuxajop.pdfIn PDF document text
    • http://files.rosecitypepperheads.com/uploads/1/3/2/6/132683330/0bee86f0472c29.pdfIn PDF document text
    • http://lerawovo.pendeenpottery.co.uk/uploads/1/3/0/7/130775258/felujalopukepolul.pdfIn PDF document text
    • http://files.uniquestylezsf.com/uploads/1/3/1/4/131407944/0dd1e.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/1/0429/5314/6517/files/bosopolapapumad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6564/7012/files/84520790137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/67142307476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5415/3371/files/carpal_tunnel_syndrome_causes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2637/5071/files/vejatonoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4646/9793/files/51611818615.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2068/9306/files/zelozozujewovivowumino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2128/7080/files/dieta_para_ganar_masa_muscular_y_perder_grasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6277/2380/files/67291043886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6944/8097/files/fiwawajumotikodaxosekipa.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_off000047ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47BA 5220 bytes
SHA-256: 4ce78000113bf7e59e6577c34095f172ff89abaa1c1e657ea1e28539e0d6194a
font_01_sfnt_off00005997.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5997 9796 bytes
SHA-256: a9477c796cb247b3755ae289884c15417b2c91e6dde4df7caed7ed5612e57228

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