MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to compromised WordPress sites, identified by the 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics. The ML classifier and ClamAV also flagged this PDF as malicious, specifically as a phishing trojan. The embedded links are the primary indicators of malicious intent, likely serving as a distribution point for further malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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 http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607babcbeb4ca---batusit.pdf
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6e5eb7ef7---kosid.pdf
- https://forex-robo.org/wp-content/plugins/super-forms/uploads/php/files/791b912c37fcfc744a123864ea235941/suxilinekurerajanagexi.pdf
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b4bd68a8867---moluvurokarunedukato.pdf
- https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/3ba2f4f05ebba87d9b1e037561d4285c/66701721008.pdf
- https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/9c2bc616b0151c45b9c915c1054116d9/xatizukoralomuxoketej.pdf
- http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608e69bcbec64---29198497960.pdf
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/35468d46fb9b7b21981b2abc7e3c5d30/febatuwesimusopafoti.pdf
- http://robbes.nl/media/files/taven.pdf
- https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/e3d71fe7f1d71c53f1e08bf6249ea2d5/redekanal.pdf
- https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/1098a8c40d1e4c270e89e3836379a208/razuxodefosudi.pdf
- http://caigeshi.com/uploadfile/file/2021061720294073499.pdf
- http://anbao.vn/uploads/userfiles/file/79158287110.pdf
- https://tranduongauto.com/app/webroot/files/images/pages/files/67922560253.pdf
- https://www.northernillumination.com/wp-content/plugins/super-forms/uploads/php/files/caf51bbcd77352ec9398214e806dfcb4/58076340788.pdf
- http://alemotta.com/resources/original/file/tubovuduxigimezun.pdf
- https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/95mnftego5at9ldpg9tj7igtac/59618220766.pdf
- http://onnetsolution.in/userfiles/file/fuxilujapuxeduwugetukogu.pdf
- http://alnadaoil.com/userfiles/file/nisusoxalibixazetikipediv.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=how+to+catch+a+cat+on+minecraft
- https://lapdonline.org/file/34942400250.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_off0000ef68.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF68 | 16792 bytes |
font_01_sfnt_off0001077f.binccf8e2352374b1fc441d4b4ba1c05acaca6c5dabc4e25100a6ecd3fbfdacca9a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1077F | 10464 bytes |
font_02_sfnt_off00011f05.binbc12e9ab74c9cc0e66b30a162c32674ec58dea282a636da7df42e7cde8f9944d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F05 | 17168 bytes |
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