MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external links, many of which point to SEO-optimized PDF files, suggesting a link farm or redirector strategy. The primary lure appears to be a fake driver download, indicated by the URL containing 'dell+755+audio+drivers+free+download'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://xezojetit.ru/strik?utm_term=dell+755+audio+drivers+free+download PDF link annotation
- http://sizegoduxuxa.mygamesonline.org/95761519513.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411252/normal_6059a0f84249c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454671/normal_60533086c32b8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4410204/normal_6053680f0106a.pdfIn PDF document text
- http://raponikidosal.getenjoyment.net/jizopawenonukedoweros.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4427793/normal_5fd9e3ec8aef1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459165/normal_600d2d334f5cd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417988/normal_6020a8dd11bb0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385880/normal_603598c612aa2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4452161/normal_606cbaf7755f6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369659/normal_6055b02ac61bf.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4392862/normal_60536845bbb2c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393901/normal_602c49fff23d3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4505699/normal_602d8b53c3514.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://01477de9-116b-42a6-a62c-54244336611e.filesusr.com/ugd/dea9e9_ba02845ab5604c4a93b91ecc79d43db7.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/dbb69b5f-5082-4bbe-8981-3e3171a10cb2/how_to_analyse_tone.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/53fb86cb-9b1c-4bd0-89c9-affcb1021f87/24099850254.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4d44082e-0797-4f55-8bdd-2b02d921e63b/varileruwikobisevonilutis.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e42261cb-bafa-41f0-b076-1d7051720cbf/40835309287.pdfIn PDF document text
- https://c4cd0dbc-23d7-4f11-b65f-2561cec8abe5.filesusr.com/ugd/516793_ec04cfb5fa8242cba4f9a2943def8cf6.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_off0000e0b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0B6 | 5256 bytes |
SHA-256: 1c138b9bba378197836dd3fce441aae9f983a873527ce7c16e11ce34d4ae4bb9 |
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font_01_sfnt_off0000f2d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2D0 | 10476 bytes |
SHA-256: 793609af946c06e3715bc41699d90c75ea978610526d38edfaa1b745509a3dda |
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