MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised or disposable hosting. Heuristics indicate this is a link farm designed to redirect users, likely for phishing or malware delivery. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 7
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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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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=important+inventions+and+discoveries+for+competitive+exams+pdf
- http://bestbuyfromindia.com/userfiles/file/62336729795.pdf
- https://dp-engineers.com/admin/userfiles/file/17633729229.pdf
- http://naplesredeals.com/userfiles/files/3521105276.pdf
- http://softwaretesting.kr/club/data/userfiles/file/20210905034958.pdf
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cfd45081fa---27874999689.pdf
- http://sun-marche.com/app/webroot/js/ckfinder/userfiles/files/pamesip.pdf
- http://sun-green.eu/ckfinder/userfiles/files/vuwetosaruzemanipebuwefa.pdf
- https://vibanghanoi.com/uploads/files/binodagomoxuguxigixivi.pdf
- https://youkuvpn.com/upload/files/vipobazeji.pdf
- https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/3c2b6131aae4d0283b146ac2e0325849/98241056743.pdf
- https://alamansyria.com/userfiles/file/75914956130.pdf
- http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/1613100cb2e68f---88693031673.pdf
- https://lemarko.com/userfiles/file/50421979793.pdf
- http://www.fuchingrading.com/upload/file/31197174455.pdf
- http://dwornawodzie.pl/userfiles/file/3242733411.pdf
- http://exdebt.bg/userfiles/file/39275193875.pdf
- https://mavibusiness.it/file/tasalinixudanijivil.pdf
- http://computerdoki.hu/user/file/vasoxotojenoxogot.pdf
- https://cinemaparadiso.site/uploads/files/60873509361.pdf
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/161368c4abaa69---xupojiniwas.pdf
- http://studioarchperissinotto.eu/userfiles/files/89432875947.pdf
- http://sahcarpets.com/userfiles/file/xevuxem.pdf
- https://tes-sys.com/uploads/ckfinder/files/20210915/16317137645708.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e24c.bin2e74f5b0f3c70bf821d8d9263fe0e9cd0052d0a50ffad0972a9034b84d257823 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE24C | 10856 bytes |
font_01_sfnt_off0000fb61.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB61 | 16792 bytes |
font_02_sfnt_off00011373.binaa8eeb88b5832303c1a5f0aa32e722b2a2a706c28f6f8aa793d13128c5a8fc79 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11373 | 18372 bytes |
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