MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URLs, including links to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this, indicating the PDF's primary function is to act as a lure to these external sites. No scripts were extracted, but the overall structure points to a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://oniceh.ru/uplcv?utm_term=red+magic+3+android+11 PDF link annotation
- https://pima-alarms.net/slicice/file/paradi.pdfIn PDF document text
- https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613ad64a5947a---jofen.pdfIn PDF document text
- https://shevtsov-art.com/uploads/files/gesexu.pdfIn PDF document text
- http://fsgpj.com/upfolder/e/files/20210908060011.pdfIn PDF document text
- http://cuacuongiare.vn/upload/files/wiwuvob.pdfIn PDF document text
- https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/53a0daap9t50q89o7h3cp7kcrh/pexamepojovadazabuba.pdfIn PDF document text
- https://www.assofmt.org/ckfinder/userfiles/files/86141822687.pdfIn PDF document text
- http://police8coop.com/UserFiles/file/65820873287.pdfIn PDF document text
- http://855solution.com/htdocs/cljr/data/files/33286765768.pdfIn PDF document text
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/bb5b81a35ff690933035e1974e68a0a0/nosabuxisuwex.pdfIn PDF document text
- http://cancunday.com/travela/img/files/99048598033.pdfIn PDF document text
- https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/52neaqi6p172rr5lubm3g1mfqf/20689571857.pdfIn PDF document text
- https://sikdercollegeofpharmacy.com/scp/ckfinder/uploads/userfiles/files/bigaxa.pdfIn PDF document text
- http://dishandspoonproductions.com/ckfinder/userfiles/files/motizot.pdfIn PDF document text
- http://montpellier-business-plan.fr/mbp/upload/images/images/upload/ckfinder/62483471234.pdfIn PDF document text
- https://villanakarin.com/userfiles/files/voxofefuwuruwegotami.pdfIn PDF document text
- http://ljjxmining.com/uploadfile/file///2021090423222037.pdfIn PDF document text
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1612f83a2c9416---topuvefadesuzaf.pdfIn PDF document text
- http://www.me.ntou.edu.tw/ckfinder/userfiles/files/20210914_063329.pdfIn PDF document text
- http://locke-3c.tw/uploads/files/202109052221516049.pdfIn PDF document text
- http://hoanhaochemical.com/uploads/files/dexemikomub.pdfIn PDF document text
- http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/16131204ed47db---nilesonozusosa.pdfIn PDF document text
- http://japanbizkorea.com/userData/ebizro_board/file/67059090206.pdfIn PDF document text
- http://www.findvoters.com/userfiles/file/lavesatopijugikajulejizi.pdfIn PDF document text
- http://alphamarino.kz/images/news/file/wexawopodexe.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d3b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3B9 | 18116 bytes |
SHA-256: ede0b95267329cd814cd8e43ecd06a301f6f16176ec4af37e22b5f7d5ec96e67 |
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font_01_sfnt_off000102d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102D7 | 10668 bytes |
SHA-256: ae1c847d8526331159f4b8dfd4f0270eb8591b09d043e7c9296c049799296818 |
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font_02_sfnt_off00011b17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B17 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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