MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains numerous embedded URLs pointing to compromised websites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://archism.ru/uplcv?utm_term=arquitetura+android+pdf
- http://flyingkirin.com/uploadfiles/file/301516373552.pdf
- https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/40eae64fb8b0a2bfc970391beba16213/ponejapoka.pdf
- https://handinhand-daycare.com/ckfinder/userfiles/files/gafotugi.pdf
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130bfe92f462---18246309287.pdf
- https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/0e7a16c717162afc1a06694ff7e5c299/33768005806.pdf
- http://yotlist.com/uniformkontakt/userfiles/image/files/15478754443.pdf
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161444da8685e2---39928933113.pdf
- https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/bosm9r24dao8k09106psauiern/60189914018.pdf
- https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1615276b1d792f---mitimarogilowugatajil.pdf
- https://soudureornementalelauziere.com/upload/editor/file/61239583545.pdf
- https://reparationmobile.net/userfiles/file/rukorewenopirivedobigim.pdf
- http://platypusspot.org/uploads/ckfinder/userfiles/files/mozipiraga.pdf
- http://hwayinn.com/image/files/20210923_130659.pdf
- https://rireenfrance.com/images/upload/files/31944070080.pdf
- http://myoffice2561.sesao33.net/UserFiles/File/zatebafarubewipukitubir.pdf
- https://volnynaklad.cz/data/file/2637978573.pdf
- http://qualityspices.in/ckuploads/files/35087199150.pdf
- https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/4438929c143fe0948fc3980e7ceb83f4/63891700288.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1615156a8a1f98---76815255289.pdf
- http://gamaxmotor.cz/data/dokumenty/bofadanaxi.pdf
- https://pensiunea-escape.ro/ckfinder/userfiles/files/piselaluvumesox.pdf
- https://hbphoto.ca/resimler/files/32434639574.pdf
- http://quesnelfoundation.ca/userfiles/file/53759446656.pdf
- https://mediaget.com/userfiles/files/nigibewe.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_off0000b432.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB432 | 16792 bytes |
font_01_sfnt_off0000cc49.bin0713c85eb2360b8595e328337a598dfc0fc15542d98da7cd0b055dd72aac7590 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC49 | 10504 bytes |
font_02_sfnt_off0000e409.binf5092fe95448930888edd87426f85b9d7abf00ff06791de2613216c7a4d28958 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE409 | 18400 bytes |
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