MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The document body is heavily obfuscated and unreadable, preventing a more detailed analysis of its specific lure.
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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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://poorclarescork.ie/images/88325005863.pdf In PDF document text
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/345dab9f478e872dcc34aed72ede59b3/rirokobabumerek.pdfIn PDF document text
- http://szpk.hu/_user/file/vaboza.pdfIn PDF document text
- https://apartmani-mestrovic-krk.hr/files/jomakafowipavajitur.pdfIn PDF document text
- http://wksx.top/images/userfiles/file/6075531683.pdfIn PDF document text
- http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6a6894df0b---99951987366.pdfIn PDF document text
- http://sellmysayarah.com/userfiles/files/79614566545.pdfIn PDF document text
- https://christembassybarking.org/wp-content/plugins/super-forms/uploads/php/files/0c39e554f6b943b366ffee9cfb77bbcc/fupafol.pdfIn PDF document text
- http://naturallabs.de/userfiles/file/petuwatodidiwimobojip.pdfIn PDF document text
- http://phenix-security.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607a05ba3d1a5---wiremapexedojafamiwemuro.pdfIn PDF document text
- https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4e99b8b154---83162921258.pdfIn PDF document text
- http://edmo-cars.nl/images/file/31564389929.pdfIn PDF document text
- http://carbonelite.ru/file/pobipowib.pdfIn PDF document text
- http://archerelectricsupply.com/userfiles/file/73975322200.pdfIn PDF document text
- https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/38157cf1bb16d19d81c6e664defefbfb/tituxagidemugot.pdfIn PDF document text
- http://mofrantech.com/userfiles/file/firitojer.pdfIn PDF document text
- https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160b8d8b40fea5---32357047238.pdfIn PDF document text
- https://meganimal.pt/site/upload/file/zuvupezene.pdfIn PDF document text
- http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160a7482566e60---wufijilobipe.pdfIn PDF document text
- http://sun-green.de/ckfinder/userfiles/files/pugokan.pdfIn PDF document text
- https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/054a30d8b485579316b78f6e810269c4/mesirapivit.pdfIn PDF document text
- http://dallapietamarchisio.it/userfiles/files/22799481354.pdfIn PDF document text
- https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/57a1db54d668ec0e93462758c0fb5efb/78629261895.pdfIn PDF document text
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/160b65e8d703a3---10352714549.pdfIn PDF document text
- http://startmatbaa.com/userfiles/file/faron.pdfIn PDF document text
- http://e-district.org/userfiles/file/41580276575.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=comparison+of+photosynthesis+and+cellular+respiration+worksheet+answersPDF link annotation
- 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_off0000cb2a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB2A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e341.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE341 | 11308 bytes |
SHA-256: 0c4d81b4fb51afd28ea93296fcda9a015c7c8beb0418991294f9d8a079db4775 |
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font_02_sfnt_off0000fdbc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDBC | 17136 bytes |
SHA-256: ea424d53e2bf2ab7af7638c8fb9a5acf2a637da83320ed05294b2b2db2659726 |
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