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, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with many URLs pointing to compromised CMS uploads or disposable hosting, suggesting a phishing or malware distribution scheme. The document body was unreadable, but the presence of numerous external links strongly supports the link farm attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://cokhivietuc.webthoidai.com/img-vietuc/files/sobiligimisozojen.pdf In PDF document text
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613499681ea80---53065811620.pdfIn PDF document text
- https://ibeguiristain.com/userfiles/files/janipemopiworep.pdfIn PDF document text
- http://bibrka-school.org.ua/ckfinder/userfiles/files/58301151373.pdfIn PDF document text
- https://mosallaesf.ir/uploads/ck/files/61533596781.pdfIn PDF document text
- http://gocreate.termall.pl/upload/fck/file/ratuwutatusiw.pdfIn PDF document text
- http://razzledazzleevents.in/userfiles/file/9885657230.pdfIn PDF document text
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1614826ba02d13---rakezakezupemelafiremeto.pdfIn PDF document text
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/9bce251981a03c2c66030930d6d956fa/gekomiturade.pdfIn PDF document text
- https://kp-bs.ru/upload/files/sefusudejugiwar.pdfIn PDF document text
- http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/161424f8b3019e---23975883709.pdfIn PDF document text
- http://eastwoodfamily.net/userimages/sipobek.pdfIn PDF document text
- http://itemclinicchina.com/ckupload/files/45540268877.pdfIn PDF document text
- http://www.alfapilates.pl/upload/file/rinabuwivodogiw.pdfIn PDF document text
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1614297e27eb01---pajanagemimerupol.pdfIn PDF document text
- https://www.poolsrus.com.au/application/third_party/ckfinder/userfiles/files/65500882249.pdfIn PDF document text
- https://mediaskills.rs/files/ketomos.pdfIn PDF document text
- http://geostudio.eu/userfiles/files/zaxaxufulomo.pdfIn PDF document text
- http://xageunion.com/userfiles/file/jidujugirupetudosiwupe.pdfIn PDF document text
- http://master-br.ru/img/file/42566820582.pdfIn PDF document text
- https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/fnkbk85lp0rhjkv54aq49m6qf2/toniselinifenafiluge.pdfIn PDF document text
- http://molenat-energies.fr/molenat.com/images/editor/file/gexokokutugo.pdfIn PDF document text
- http://artediapharma.com/upload/files/titejivavelewesubimaf.pdfIn PDF document text
- http://baigeleather.com/userfiles/file/71224042058.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=real+car+parking+2+ios+hackPDF 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_off0000ba70.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBA70 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d282.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD282 | 16976 bytes |
SHA-256: 24edc99893c1225ff61a51117e804dc7267bbd8b7b01cd83ed83cb6994df6427 |
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font_02_sfnt_off0000fe20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE20 | 10812 bytes |
SHA-256: ed04ce8b3db15dde28c6fc2c3fbaf9895de04391a6c987d65cd272d9387495b5 |
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