PDF malware analysis — malicious · 941ff6d4e26ded70

MALICIOUS

PDF

73.9 KB Created: 2020-11-17 18:45:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-12

MD5: 3e9dc71b919a41c4670613e669e8a674 SHA-1: 17e7e74adb6d2f57b18960e7627954bfea1285a0 SHA-256: 941ff6d4e26ded70487f78fa8d8027c5b191f6f7ed7754ebdbabd88f6cf48a19

136 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9983

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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.
External URI info PDF_URI

PDF contains an external URL action
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://trafffi.ru/strik?utm_term=oracion+civica+de+gabino+barreda PDF link annotation
- https://migamusuzugu.weebly.com/uploads/1/3/4/6/134657386/zukigurasopo.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450421/normal_5fa105a2dc1ce.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382784/normal_5fa02425b88ab.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368265/normal_5fa7cc7911e15.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/gifiz/50862220607.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1505b81d-3e3f-4f20-ae7b-155dbd65c903/56494375216.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/71e67a1d-8962-4f21-8e60-112ecea75690/2059420964.pdfIn PDF document text
- https://s3.amazonaws.com/nitizobuv/98136240176.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4141998f-e4c7-4f85-b1cb-63d441d593ec/best_robin_feeders.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e2de.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE2DE	5124 bytes
SHA-256: `53ceff58490debb0b8a6320caa42298214ed109ac2b2151f0d6396a2d3847f1b`
`font_01_sfnt_off0000f457.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF457	11332 bytes
SHA-256: `8c1f484465885899cfe3a98e4167d784659777cd3f434dddc93a2f9cacb2d348`

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