MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external links, many pointing to SEO-optimized content, suggesting a link farm or redirector strategy. The primary URL, https://midufefew.ru/award?keyword=bruce+shaw+construction+costs+2020+pdf, is presented as a construction cost document, which is a common lure for phishing or malware delivery. ClamAV and ML classifiers also identified this PDF as malicious, specifically a phishing trojan.
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://midufefew.ru/award?keyword=bruce+shaw+construction+costs+2020+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4474989/normal_60326d7f3156a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4445742/normal_5fd1aa4fd0559.pdfIn PDF document text
- https://giruwaferelesed.weebly.com/uploads/1/3/4/8/134850821/fezatog.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368975/normal_5fd2c64fe8686.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4393776/normal_5ff6931a7d204.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384037/normal_601af7bdebaee.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4392660/normal_5fee2b5ff294e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4416940/normal_5fd9ac6f5aa39.pdfIn PDF document text
- https://kinifuromokemo.weebly.com/uploads/1/3/5/3/135348191/disagisekulig.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4456377/normal_6067353b151e0.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/genijusemu/dojopozujefejo.pdfIn PDF document text
- https://s3.amazonaws.com/fadupazageraf/jamuvelag.pdfIn PDF document text
- https://s3.amazonaws.com/fodose/15750744914.pdfIn PDF document text
- https://s3.amazonaws.com/kefodek/81089029581.pdfIn PDF document text
- https://s3.amazonaws.com/rurosaveruk/nosuwixazibipu.pdfIn PDF document text
- https://s3.amazonaws.com/tikoweravisixu/oracin_a_san_judas_tadeo_en_casos_dificiles.pdfIn PDF document text
- https://790985df-dfec-4a08-b509-00f37668cf87.filesusr.com/ugd/a421e3_7aeb98efe7b8475da7b1519e955ee0c8.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/tawovojo/kutafemuzetedutoke.pdfIn PDF document text
- https://s3.amazonaws.com/sefepugolupalax/77868024232.pdfIn PDF document text
- https://s3.amazonaws.com/degisapemifa/takaxogomajofidupudosame.pdfIn PDF document text
- https://s3.amazonaws.com/sajezife/65485000833.pdfIn PDF document text
- https://a1bd7baf-2de3-4c81-8914-4b74a732ecf9.filesusr.com/ugd/c89f15_bb0e6e0865e744f7ad7a14829cc161cb.pdf?index=trueIn 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_off0000f13c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF13C | 5624 bytes |
SHA-256: cbea65bf2838a9b8d5c90a6b26fab37cd9e845c79d9a48d67e47732c27514855 |
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font_01_sfnt_off00010477.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10477 | 11324 bytes |
SHA-256: cf7453ec43ab8a943b199e3533431911fb102bb025c0df599a2bb70b63027d27 |
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