MALICIOUS
116
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains a large number of embedded URLs, many of which are hosted on disposable domains or compromised WordPress sites. The ML classifier strongly indicates maliciousness, and the presence of a link farm suggests an attempt to redirect users to potentially harmful content. No scripts were extracted, but the document's structure and URL distribution are indicative of a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
Heuristics 6
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://nomylo.ru/uplcv?utm_term=gacha+life+mod+apk+file
- http://hb-hospital.com/file_upload/fck_upfile/file/dubikotegedupasisiz.pdf
- https://spandoekland.nl/userfiles/file/65364390158.pdf
- http://intersonik.eu/upload/files/vogejojinurolerawedidepow.pdf
- http://dgjst.com/upfile/file/zinibixuzevudo.pdf
- https://threadworx.com/thread/admin/uploads/file/12276349988.pdf
- http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/5a94b0da87fd769218590a9680c658df/rowutabavog.pdf
- http://erisalaw-chicago.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/vejopamewumovodemer.pdf
- http://vatlieubaooncachnhiet.com/userfiles/file/9529057007.pdf
- https://seas2010.cienciaevida.pt/site/upload/file/dinakolajanita.pdf
- https://okna-kursk.ru/page_edit/_samples/userfiles/files/86183052524.pdf
- http://adbrf.com/files/fckeditor/file/2080897221613b9148b851b.pdf
- http://sxnqx.org/upload/file/Fl202109110421357412.pdf
- http://brukbet.com/user_images/file/57642912853.pdf
- https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/03cc068f0a3dce4817ac3614442c40bc/29193014556.pdf
- http://hart-metale.pl/gimnazjum/userfiles/file/jeleronamexaberitosogexux.pdf
- https://glaze-metalart.com/upload/files/neruzugadiva.pdf
- https://semut73.com/contents/files/93439310569.pdf
- http://js-space.de/userfiles/file/fizozesogunomadejefevur.pdf
- https://fotobolfestmeny.hu/mvc/userfiles/file/10557216264.pdf
- https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/448af9a45835568c659828b6500520cc/18821042821.pdf
- https://economiadecomunion.net/ckfinder/userfiles/files/35473465160.pdf
- http://dieta-plus.pl/userfiles/file/zajekifezibozaxola.pdf
- http://kristiankutschera.de/userfiles/file/lovekesuz.pdf
- http://www.biogreeno.com/cms/ckfinder/userfiles/files/95390324227.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_off0000b910.bin882dcb9b40e9576b7fbdcd40cbdb61d2b59dd7ffcd7dfa75b2ec70ef3bafcc09 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB910 | 10544 bytes |
font_01_sfnt_off0000d108.binc7a23bad51b18d417fc0cbccd6eb1b5c11f4289c1bbb6e24008a2c05d1646108 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD108 | 15712 bytes |
font_02_sfnt_off0000f8d6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8D6 | 16792 bytes |
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