Malicious PDF — malware analysis report

Static analysis result for SHA-256 7934bd03fbff47d6…

MALICIOUS

PDF

70.7 KB Created: 2020-11-17 21:46:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 9e7f177a4db94a3928edbf826ca10c03 SHA-1: 3e88670555cf328c9b0b6962151f1b2da483339d SHA-256: 7934bd03fbff47d631580156b1199e257ce3cb48de358c5de7b176c026664f21
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffking.ru/123?utm_term=la+gran+estafa+de+la+felicidad In PDF document text
    • https://xowiwatodilesa.weebly.com/uploads/1/3/4/3/134363744/3927797.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382406/normal_5f8c64e5f2423.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380083/normal_5f8e8cc6f0e47.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403413/normal_5fb35ab8ae53d.pdfIn PDF document text
    • https://zemaxixose.weebly.com/uploads/1/3/4/6/134636511/db0802d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415308/normal_5f9fd4cccacea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454999/normal_5fb013127ac14.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378846/normal_5fa4c8c800ce8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/9842c18b-0de8-4517-b31c-59b15eb255bd/gobemo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e16c01de-0b9d-4228-bc60-8c744ade4b7b/gidog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13bfa9f0-1463-45ed-8d79-ce9a568c4f32/juruxol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/505a6c26-06d4-4736-810f-f08fa2571253/20986982574.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2d9a76b-28e1-419e-aa4c-8ba1cf4203b2/97553688279.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c68878b4-bcd5-475d-8ac3-acd04f6bd0a8/zewurinetalu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3b497c4-4b90-4087-a3ca-0101fe2eeb7b/tower_of_fate_red_skulls.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d380.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD380 5132 bytes
SHA-256: 4ac2d3770177aaf2896b1dd5b6fd6063be5a366edbe67cf0a801a803e4d9066f
font_01_sfnt_off0000e508.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE508 12028 bytes
SHA-256: ac76fa6de2dd1b03183587b9594bd47344240bcef0f6863ae5817748c23f981c

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