MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous URLs, many pointing to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to distribute malicious content or phish users. The presence of embedded URLs and the nature of the heuristic firings indicate a likely attempt to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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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://synerhu.ru/uplcv?utm_term=traduire+page+web+android PDF link annotation
- http://doudou.tw/userfiles/files/81361487442.pdfIn PDF document text
- https://milsagliksen.org/upload/ckfinder/files/79251524411.pdfIn PDF document text
- http://easternhoteljeju.com/FileData/ckfinder/files/20210909_DBDA3F4D63D2529D.pdfIn PDF document text
- http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/16148139213753---69306252934.pdfIn PDF document text
- http://huseyindurmuslar.com/images_upload/files/12727260195.pdfIn PDF document text
- http://www.santamyoga.be/images/file/83412298481.pdfIn PDF document text
- http://prasongp.com/file_media/file_image/file/bawaxukekenilimagirumum.pdfIn PDF document text
- http://timnhanhonline.vn/upload/files/39831792256.pdfIn PDF document text
- http://studiotecnicolamanna.com/userfiles/files/55740412952.pdfIn PDF document text
- http://0048.pl/48files/file/51754941575.pdfIn PDF document text
- https://www.eos.org.eg/ckfinder/userfiles/files/gerigel.pdfIn PDF document text
- http://khocabien.com/uploads/files/10566415098.pdfIn PDF document text
- https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ec78d91794---92254263296.pdfIn PDF document text
- http://teplo76.ru/uploads/file/58446246082.pdfIn PDF document text
- http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16149112da826b---sesofuku.pdfIn PDF document text
- http://globalbando.com/DATA/upload/files/202109041126324945.pdfIn PDF document text
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/161408794df4aa---67071869496.pdfIn PDF document text
- http://sloplast.com/userfiles/files/67249525262.pdfIn PDF document text
- http://columb-sklep.pl/userfiles/file/21374448076.pdfIn PDF document text
- https://edusfera.pl/upload/file/doripofivim.pdfIn PDF document text
- http://hamyarsanatco.com/ckfinder/userfiles/files/5951696530.pdfIn PDF document text
- https://radekslodkiewicz.pl/files/file/2758481803.pdfIn PDF document text
- http://brezov-gaj.si/uporabnik/file/1138991040.pdfIn PDF document text
- http://basse-normandie.annuaire-regional.com/ckfinder/userfiles/files/mekunakapoma.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_off0000c865.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC865 | 18736 bytes |
SHA-256: 44153920a0cd1c993a426d29e570105b6309fcde4ffc1071e0d7c9cd530aa21c |
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font_01_sfnt_off0000f8ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8AC | 10544 bytes |
SHA-256: 5fef668d1f19626bab098ea42da6dea0e8b19e51f5946dee42ac33a7d4ddf1fd |
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font_02_sfnt_off00011060.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11060 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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