MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple compromised WordPress upload directories and disposable hosting sites. These links likely serve as a lure for phishing or to download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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 https://infrive.ru/uplcv?utm_term=wet+sump+lubrication
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/160b9b22067974---88970279520.pdf
- https://beautyyaurient.com/editor_upload/file/bufodavaven.pdf
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/f2f6deecdfd9e09f33d225789ae13ed8/51467475296.pdf
- http://allseasonsart.com/uploads/fck_uploads/file/40164334645.pdf
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bf9e65af154---ronafozetajabivosademuxe.pdf
- https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/405d9b9706613ed4f842b882d9384976/32824626257.pdf
- https://juhaszautovill.hu/userfiles/file/73931418703.pdf
- http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c65d5c7dece---2317120943.pdf
- https://alshamiltrading.com/alshamilfiles/file/raromafufixo.pdf
- http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/160b0610983b7f---38341979509.pdf
- https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/98dbfecbea55b03e8b82707c6e9f2079/96585646894.pdf
- https://akapacha.com/userfiles/file/11517734293.pdf
- http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608012f413980---xiwakoz.pdf
- http://eviinstall.com/userfiles/files/ripajepakuluri.pdf
- http://zwickerfoto.hu/_user/file/noradevijilanu.pdf
- https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/c9e1caf89e5d06b4bc4434ffb8f1b26d/ponigewojetojarikarejonu.pdf
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1609420b32e85f---47706836703.pdf
- http://dkmmotor.com/files/userfiles/file/lobebirusanu.pdf
- http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af6837f37c6---zoxupapijabefijomagu.pdf
- https://mytopics.it/uploads/file/80696162716.pdf
- http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba9acc563c5---gojite.pdf
- http://sashtraayurveda.com/ckfinder/userfiles/files/28149990644.pdf
- http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/1a2f77f46867723dab4fa760d3852d22/33593556986.pdf
- https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/160b0c921601d3---vuxuxipulaforekunubajo.pdf
- https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607667f26ce7e---zunavikem.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_off0000f849.bin6ff4426df0b531dca28179d7120843714461e8064f7ce23a59a46135536e87a1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF849 | 17260 bytes |
font_01_sfnt_off000125a7.bin0443dede4310a5dbf4986cfbac054f1f4db3c0fd8c6ed9344ebed0cc20989564 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125A7 | 10768 bytes |
font_02_sfnt_off00013e31.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E31 | 16792 bytes |
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