MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links to external websites, many of which appear to be hosted on compromised CMS platforms or disposable domains, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly support its malicious nature. No scripts were extracted from this sample.
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://chcial.ru/uplcv?utm_term=find+past+perfect+tense
- http://paynechapelduquesne.org/clients/9/9b/9b910c66cef3ae2d1bb1fd5804160a19/File/36695808698.pdf
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160b1ff60366b7---26647200057.pdf
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608365b333975---923867413.pdf
- https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d90484e2356---zefujipegeki.pdf
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f1468c80bc---75991448985.pdf
- http://kancelaria-perfect.pl/app/webroot/media/files/60120804663.pdf
- https://szekszardportal.hu/userfiles/file/22896601292.pdf
- https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/d855g6ma4agvdl4mg05if95l4h/47866118004.pdf
- https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/6fbe333e366d13963eee9e096726afc8/fomozerunitab.pdf
- http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dd507ccf92---gevalazazasomupimuwaket.pdf
- http://ypperfect.com/ckfinder/userfiles/files/34582478753.pdf
- http://karunb.com/UpLoads/files/vijerisozetorukadexigexob.pdf
- http://ajtoablakcentrum.com/_user/file/kakowowotutujinam.pdf
- https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/p1ue91ilk29og0nml5u4mdtk29/1290723146.pdf
- https://hpx.com.ua/wp-content/plugins/super-forms/uploads/php/files/97769ab5110c011708c0754b92f6c631/bikewalolabinewarojewuve.pdf
- https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/abacc52be5137ef70e99286f49c7a68d/86218710138.pdf
- http://creativeindustries.ru/uploads/userfiles/file/1766454100.pdf
- http://perles-del-beya.com/userfiles/file/29426305144.pdf
- https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/a7cb6fb0bba7994dfb094700fc076411/80679589376.pdf
- https://sasalidayanisma.org/uploads/file/woteviwamovupuluvogujopud.pdf
- https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/41c51aa468130860005e80a97a2e0c89/vepugawaxolupufos.pdf
- https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/8e386e17ef151f0aadf4605ea34c3dd2/66166474674.pdf
- http://autoscuolauniversale.it/userfiles/files/vepuwumu.pdf
- http://katyababash.com/images/uploads/file/salixamudesodotubop.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_off0000ea35.bin94371367b8889c5a4ebe312d846b4dadf0b834615891b8b407d340d1bcfd2a11 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA35 | 17108 bytes |
font_01_sfnt_off0001163b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1163B | 16792 bytes |
font_02_sfnt_off00012e52.bin18604691ad4f1296d19d61f944ef0c8e53e3109b632875109176d0622cf023c1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E52 | 10424 bytes |
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