MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating a phishing or malware distribution attempt. It contains a link farm pointing to multiple compromised or disposable hosting sites, designed to redirect users to potentially harmful content. The presence of numerous embedded URLs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly suggest this document's primary purpose is to drive traffic to external, untrusted resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://writtenmail.com/upload_images/file/gunifezijodefubadinopu.pdf In PDF document text
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141a098694ff---42671049895.pdfIn PDF document text
- http://elencostruzioni.it/userfiles/files/53606299484.pdfIn PDF document text
- https://china-glass-mosaic.vegner.com/userfiles/files/20210910_191108.pdfIn PDF document text
- http://terhautz.com/upload_files/files/34793431969.pdfIn PDF document text
- https://viadagio.be/userfiles/file/lupefivuwavofusif.pdfIn PDF document text
- https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/d495a72bcbe2c98ae2486688c876a948/mikakifodojotufoset.pdfIn PDF document text
- https://egokituz.eus/files/galeria/files/nurumitasozusuzanagorati.pdfIn PDF document text
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612fe6788251a---6428938337.pdfIn PDF document text
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16137803004067---16991039476.pdfIn PDF document text
- http://noithatlekhanh.com/Images_upload/files/64743441369.pdfIn PDF document text
- http://www.ap-arte.ro/fckupload/file/jusuposulemenexukexabofen.pdfIn PDF document text
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/161413e96aee83---mirizivar.pdfIn PDF document text
- https://akrmedia.no/ckfinder/userfiles/files/gavowalulenemidakadaxi.pdfIn PDF document text
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614334efc2875---55628945809.pdfIn PDF document text
- http://letsbelegal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/vuvelebi.pdfIn PDF document text
- http://fuku-zou.com/userfiles/file/nudit.pdfIn PDF document text
- http://www.dgtrans.co.th/login/ckfinder/userfiles/files/wozutimabizaw.pdfIn PDF document text
- http://thanuyentea.com/ckfinder/userfiles/files/10228343623.pdfIn PDF document text
- http://rtm-plus.com/ckfinder/userfiles/files/vaxuzenidinimutoginovivix.pdfIn PDF document text
- http://sosnovgeo.ru/userfiles/file/tujidapojeb.pdfIn PDF document text
- http://marinapogon.pl/upload/file/zikiwolibuviroxoxo.pdfIn PDF document text
- https://blsautomation.com/ckfinder/userfiles/files/kibidalonusodu.pdfIn PDF document text
- http://benetworkingpro.com/ckfinder/userfiles/files/makemuxaritotuguroxejik.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=doctor+who+wallpaper+for+android+phonePDF 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_off0000d107.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD107 | 18836 bytes |
SHA-256: 7c60448dd9b560bdfd3367a94dfb0557a8ccb410a39aa09fcb2cb08f03596663 |
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font_01_sfnt_off000101c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101C1 | 10636 bytes |
SHA-256: f905e0de0e4e6f8acc217b18b6e5b5ce20d854c2d198f0a22cb39ee40fbc9c78 |
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font_02_sfnt_off00011a0b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A0B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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