MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URIs and links to compromised CMS upload storage, suggesting it functions as a link farm or redirector to malicious content. The PDF structure and embedded links are consistent with phishing or malware distribution tactics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
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 https://archism.ru/uplcv?utm_term=ente+vidyalayam+essay+in+malayalam+pdf
- https://atl-50.com/files/file/91836221615.pdf
- http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/160aa907f37d76---86771448500.pdf
- https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae3ef667a8e---ririgigito.pdf
- http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078b98d7fc17---41669872549.pdf
- http://agcslohian.com/userfiles/file/loxamejedow.pdf
- http://funperm.ru/content/file/7333458655.pdf
- http://solar-makernavi.com/ckfinder/userfiles/files/fopazilavawowanevanaw.pdf
- http://euro-ex.net/images/blog//file/pexizud.pdf
- http://seventyfirstclassof69.com/clients/60772/File/ripepubupotezagugeloteri.pdf
- http://tecsun-moscow.ru/docs/file/88624275926.pdf
- http://greathorserider.com/ckfinder/userfiles/files/79016839286.pdf
- https://mebelihome.ru/upload_picture/pofewoma.pdf
- https://associazionemusicaviva.it/uploads/file/vajekaz.pdf
- http://goddesshair.net/upload/users/files/97948495068.pdf
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607eb9acd3caa---70744769441.pdf
- https://aartipalette.com/userfiles/file/gosazabemudajupigupi.pdf
- https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/13a63a5a88394f9a83ef983ece7bb5bc/xijisifameralesedimisuwe.pdf
- https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a82dcec226a---85305516270.pdf
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608611634d7c8---ravilaxifukoditawijazaji.pdf
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/160719137b533e---retexagivatimutonidad.pdf
- http://mobilenmr.com/files/files/39164644617.pdf
- https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/ba27390a8de05d294542c30add64f17d/zeluvujodekofonolewije.pdf
- https://cplastik.cz/data/cms/file/28364568892.pdf
- https://ceccarbotosani.ro/userfiles/file/kiradimasare.pdf
- http://xn--kprq5pvqklteonubj6c.tw/CKEdit/upload/files/39176297289.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_off0000c75d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC75D | 16792 bytes |
font_01_sfnt_off0000df74.binee5f3084a3ee4a15ab4f1b66370b6c8624df474b1b7ea98fdf5d1e8cdab8fdf8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF74 | 10604 bytes |
font_02_sfnt_off0000f7ad.bin87d6bba7033bf9bcfb9d5058ff8d303c3a7c605f2448363dcab7eec6889b97c4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7AD | 18744 bytes |
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