Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e3917e792b9c0bc…

MALICIOUS

PDF

43.4 KB Created: 2020-08-13 22:40:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c3369da598d83c9d238f6eb44faa8135 SHA-1: 7522e107104655737f771773fb3af1bf2eeaba11 SHA-256: 9e3917e792b9c0bc9cd040318698bb7072c9f307d494f6a35bbd27f18e4c1c50
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one pointing to a known malicious redirector. The heuristic PDF_SEO_LINK_FARM indicates a large number of external PDF links, likely for SEO manipulation or to distribute malware. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the presence of numerous links suggests a delivery mechanism for malicious content.

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=2019+construction+company+profile+pdf In PDF document text
    • http://difix.sweetdreamsthykingdomcome.com/uploads/1/3/1/4/131454731/zanepusiroxusuvorer.pdfIn PDF document text
    • http://files.frunkpuppyshop.com/uploads/1/3/1/1/131164569/33567c00ae93.pdfIn PDF document text
    • http://vefukaf.tipifarfelu.com/uploads/1/3/1/1/131164250/2304768.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/1/0435/2950/2874/files/josijinogedogajasakajese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9957/7756/files/majekuzexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8587/9713/files/ramen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8789/6480/files/united_airlines_gate_information_sfo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9087/8372/files/programma_centrodestra_elezioni_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9309/0714/files/99123690282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1602/8309/files/jujasafutop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0473/7174/files/dumiku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1167/7083/files/banking_operation_management_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9276/3039/files/39436644827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2195/4206/files/oregon_wine_country_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2603/7411/files/administracion_financiera_gitman.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_off000068f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68F8 5788 bytes
SHA-256: af55551e2702cb3f2a63e4c904778af6b5a46d82fd685b47a4bf9a087e727a82
font_01_sfnt_off00007c8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C8F 10500 bytes
SHA-256: 1a203c2ebef0e610d5f3f9ddd48735d1a34c0880f64fe3dde1ac1fec632da20c

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