MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for malicious PDFs. It also contains numerous external URIs pointing to compromised websites and disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/8967733f0751c63291083e05fa8cf392/41482913050.pdf
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160794b2b92940---nepikegobugake.pdf
- https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/faf01128766c6df1b24fb8a12fbbecdb/86220579093.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b81b609e872---83707057713.pdf
- http://technoauto.jp/js/upload/files/74921902324.pdf
- http://geo-equipe.it/userfiles/files/22076557747.pdf
- http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079323b4fd60---12441849790.pdf
- https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/acdd146effff702b242045be5f04bf2c/jododod.pdf
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608289f06b2ba---23456116065.pdf
- https://dcoderesearch.com/uploads/zojevawefabi.pdf
- https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/160846dc3f0936---75811817284.pdf
- http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/160b6cb96c786d---26462963094.pdf
- http://mamnonlittlesun.com/upload/files/lirapudozekiragimumizun.pdf
- http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9b4ad3b536---17698704210.pdf
- https://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/ferujokazuve.pdf
- http://goldendazzle.com/upload/quangtri/files/lagawewawojipoxolu.pdf
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e20ad2f8e1---40442506278.pdf
- http://gymostrov.org/gymostrov/userfiles/file/nurosisilevevo.pdf
- https://www.enterpriselighting.com/wp-content/plugins/super-forms/uploads/php/files/75aae1a63233e9ec1b1ca199df371712/44255283891.pdf
- http://aotwresort.info/ckfinder/userfiles/files/xorojivebogu.pdf
- https://icicle-mountaineering.ltd.uk/ckfinder/userfiles/files/27889946802.pdf
- https://nowbali.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/1608cd4fe55844---21096106938.pdf
- http://lambanghieuquangcaogiare.net/vietkiendo/upload/file/52437007083.pdf
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16103bb29856d4---mekefutu.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=libro+de+matematicas+1+de+secundaria+2019+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_off0000eb7e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB7E | 16792 bytes |
font_01_sfnt_off00010395.binb7a667b8bc523279757059079117492368a9a44dc8bc9dd26296a5be6f5c20ca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10395 | 11396 bytes |
font_02_sfnt_off00011e53.bin2c9db46d45d8862177cf0b27289dfb3e600b565f96c3de64327504d34cdc8975 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E53 | 17392 bytes |
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