MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan. It contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to obscure the ultimate destination. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://airbays.com/userfiles/file/64912615310.pdf
- https://discoverapartmentsforrent.com/wp-content/plugins/super-forms/uploads/php/files/56f7a2710bfc266cd3632206c0634e5a/9564293764.pdf
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610c2319e73d9---gofefexujedego.pdf
- http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/1607c47a39a71c---diloja.pdf
- https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/c641a54616823a10947e362e6e9ef08c/84526688408.pdf
- http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16072c12fe73e8---79243266420.pdf
- http://www.idukkidiocese.org/files/js/ckfinder/userfiles/files/86789432154.pdf
- http://akinmedikal.com/uploads/file/kupunujopetejubikar.pdf
- http://jtour.vn/userfiles/file/mavezaripelaketut.pdf
- http://maihome.hu/admin1/file/jidilavojoterelimatido.pdf
- https://cowichanmusicfestival.com/userfiles/file/71606865466.pdf
- https://www.lightingsolutionsinc.net/wp-content/plugins/super-forms/uploads/php/files/40eb38d86a0fea4647cff8db1fa50489/6763507785.pdf
- http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608a4190d2310---21022286070.pdf
- http://austria-ex.com/images/blog/file/95094061591.pdf
- https://cashmeredreams.com/wp-content/plugins/super-forms/uploads/php/files/86643dc525393282c1fdbe87945adafc/70830091616.pdf
- http://caratow.eu/userfiles/file/20046397730.pdf
- https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609109db78c14---wefexavefisari.pdf
- http://emiem.pl/public/upload/ckfinder/userfiles/files/podifamuxuduzol.pdf
- https://criteriacambio.com.br/wp-content/plugins/super-forms/uploads/php/files/82qfebbe2tt8bifhuiknek8gd0/vanumu.pdf
- https://dichvumoinoi.com/ckfinder/userfiles/files/44201641820.pdf
- https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/984f65dd9a7808a691f4404513312c2e/17014105723.pdf
- https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/e8ab33qmpee5l807q74fieuriq/83712511919.pdf
- http://austria-ex.com/images/blog//file/vomoxujigadabif.pdf
- http://e-hane.com/files/43035893248.pdf
- http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dbd466101bb---59554011093.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=add+watermark+in+pdf+online+free
- 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_off0000ddb3.bine474370180706b12a2bc6c310a4a9daf4a742afbc3da3acd1e1203d2de0c4cb7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDB3 | 10648 bytes |
font_01_sfnt_off0000f60f.bin64b6cabff4de314946b8b4aa309df79b07aa722ce81756ee9913f26b5054a163 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF60F | 16712 bytes |
font_02_sfnt_off00012180.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12180 | 16792 bytes |
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