MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which are hosted on disposable domains. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a deliberate attempt to create a link farm, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection further support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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 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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://catamma.ru/uplcv?utm_term=android+connect+to+vpn PDF link annotation
- http://docando.es/js/ckfinder/userfiles/files/69430139730.pdfIn PDF document text
- http://eschool365.in/js/admin/uploadfiles/file/53156881985.pdfIn PDF document text
- https://koncnc.com/genelresimler/file/vokafurodewowakovejol.pdfIn PDF document text
- http://storemisr.com/uploads/files/35075702401.pdfIn PDF document text
- http://capri.lt/userfiles/files/84675292212.pdfIn PDF document text
- http://osteriadelcampanile.com/userfiles/files/faporagomugibadetofasu.pdfIn PDF document text
- http://wcsps.com.tw/ckfinder/userfiles/files/putibomiletowavilobajenir.pdfIn PDF document text
- http://123podkrovie.sk/editor_uploads/files/78502047587.pdfIn PDF document text
- http://ricarda-allegra.de/userfiles/file/wosonikesezuz.pdfIn PDF document text
- https://surupaceanu.ro/ckfinder/userfiles/files/fudale.pdfIn PDF document text
- http://spellenindex.nl/images/uploads/53172336985.pdfIn PDF document text
- http://hzqzg.com/d/files/kutidoto.pdfIn PDF document text
- http://realcomfort.ru/content/upload/file/52487478844.pdfIn PDF document text
- https://sdudyogtechnologies.in/ckfinder/userfiles/files/puwojovokalowuz.pdfIn PDF document text
- http://ricoconsultingattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/69950938162.pdfIn PDF document text
- https://dalba.net/other_files/File/22778483049.pdfIn PDF document text
- http://herbwaterthailand.com/userfiles/files/72739049129.pdfIn PDF document text
- http://pphu-joanna.pl/fckpliki/file/15575723346.pdfIn PDF document text
- http://xn--tnqz8hz5cb8l.com/upload/files/mudob.pdfIn PDF document text
- https://marblo.marblobaths.ph/app/webroot/img/files/piminakijok.pdfIn PDF document text
- http://krukewittfarms.com/userfiles/file/86152255496.pdfIn PDF document text
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d07b732edf---vovavesivagunexoxidasege.pdfIn PDF document text
- http://vasekurzy.cz/userfiles/file/85521061546.pdfIn PDF document text
- http://bertrandetgastineaudesigners.com/userfiles/file/1153384968.pdfIn PDF document text
- https://sssmri.com/ckfinder/userfiles/files/wigoru.pdfIn PDF document text
- https://comfort8889.com/upload/files/18232073722.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_off0000d0e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0E7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e8fe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8FE | 10176 bytes |
SHA-256: c5e70b83d799663b14e0851c07f743012f79e54490486e687b6af7dbe669b71e |
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font_02_sfnt_off0000ffe0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFE0 | 17184 bytes |
SHA-256: 5a5f733546c270c2d7368b4eed6a5ff8dc8777756a12e08fd1d69eb13de023f6 |
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