MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file exhibits characteristics of a phishing lure, indicated by the presence of numerous external links, many of which point to SEO-optimized PDF files. The primary URL, 'https://pelibifir.ru/123?utm_term=cercle+de+la+forme+saint+lazare', suggests a redirection mechanism for distributing malicious content. The ML classifier and ClamAV detection strongly support its malicious nature, likely as a downloader for further stages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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://pelibifir.ru/123?utm_term=cercle+de+la+forme+saint+lazare PDF link annotation
- https://cdn-cms.f-static.net/uploads/4457279/normal_60381544658e8.pdfIn PDF document text
- https://momimuraw.weebly.com/uploads/1/3/1/3/131384495/zowofafoviwito.pdfIn PDF document text
- https://cdn.sqhk.co/madufuxenuw/sjhnED8/underworld_breach_adventure_cards.pdfIn PDF document text
- https://gibejeki.weebly.com/uploads/1/3/1/4/131438187/f92cc10249bfa1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4484820/normal_6059cfec946c3.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4369768/normal_5feb9e313afca.pdfIn PDF document text
- https://cdn.sqhk.co/zarepowake/dVMieic/best_clipless_mountain_bike_shoes_for_wide_feet.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4480595/normal_60490aaba5bf6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387586/normal_5ff06e37c5455.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388598/normal_60402cbf1a886.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4365624/normal_5fd0843c48091.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4493209/normal_5fdf98fabbc86.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421939/normal_6017b0d52af51.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4445324/normal_600a11811ed15.pdfIn PDF document text
- https://cdn.sqhk.co/tijovomiv/ibhhJhe/killer_sudoku_solver_app.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4455196/normal_604dd48b3590b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387567/normal_6043878a8e63c.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4423443/normal_5fdd9bdf945e4.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/3849f896-ae2f-48b9-9a3b-490c564efcdb/nibanalofusijaripe.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ade6310e-08fa-4b8e-9563-7e7295a131f5/wepiveb.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/11dba620-2ebf-4ae0-a564-790ef5b3ce1a/falilorifo.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f30f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF30F | 5028 bytes |
SHA-256: e73ecd31c81b0fdc83e5ad564ecda06850532b20908af8403efba93f6eb72ff3 |
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font_01_sfnt_off0001040c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1040C | 13016 bytes |
SHA-256: 657cd88f3ff09f1acc28cc8a517350b4bbc4e9a261d20b43fdd6ce2cf0bce5bb |
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font_02_sfnt_off00012d48.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D48 | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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