Malicious PDF — malware analysis report

Static analysis result for SHA-256 af295a9d2fd208a9…

MALICIOUS

PDF

73.3 KB Created: 2020-11-17 11:41:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-21
MD5: 9011508c0774f56e046f427d74f1c176 SHA-1: c342a09aada38d6e81baf715b6e64f497b47b324 SHA-256: af295a9d2fd208a99e2cbe0be88967c0461ec3585550377006629c2ca969169d
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffine.ru/strik?utm_term=3+4+ctmp+erowid In PDF document text
    • https://cdn-cms.f-static.net/uploads/4379841/normal_5f9060d36595c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385422/normal_5fa64141d010c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367286/normal_5f9a61de1a062.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481400/normal_5faf681c4aaee.pdfIn PDF document text
    • https://xataramev.weebly.com/uploads/1/3/4/3/134320843/fewuwefuvufu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384030/normal_5f97760b187a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366397/normal_5f8f3cd8dbdbe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366000/normal_5f87665d82e6f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367919/normal_5fa5c8752a173.pdfIn PDF document text
    • https://xabopefasuliwik.weebly.com/uploads/1/3/4/4/134445681/1606599.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493227/normal_5fb0352dd273d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366036/normal_5f8a2fc0082ad.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/midaguvimabof/wwe_supercard_credit_qr_codes_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/abbyy_transformer_2._0_full_espaol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa2a73fb-2bdb-4d5c-93b5-336808c729ad/99453527541.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_off0000e3af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3AF 5048 bytes
SHA-256: 85c5444f9600f2958d52a74c968e8b3ced71a8de9a91ab768e92afad8067ae92
font_01_sfnt_off0000f4de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4DE 10624 bytes
SHA-256: eacf7c5f52340fd6635e41158fb3c9bce4e03a6bd2d444fc174bc4b2783a879e

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