MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous URLs that point to compromised websites and disposable hosting, likely serving as a distribution point for phishing or malware. The presence of multiple external URIs and link farm heuristics strongly suggests an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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=air+pollution+control+a+design+approach+4th+edition+solutions+manual PDF link annotation
- https://soba05.org/wp-content/plugins/super-forms/uploads/php/files/40891e57ca03b94003bbcedb80afc160/vigezemi.pdfIn PDF document text
- https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/ljomj9abit9cilb6acnjqkqcqc/49208515104.pdfIn PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba859ef23ab---dozubob.pdfIn PDF document text
- http://simonhoirup.dk/userfiles/file/37408656267.pdfIn PDF document text
- https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbcb260bf6---bugokumimug.pdfIn PDF document text
- http://massimoandyuethui.com/clients/69227/File/16593532116.pdfIn PDF document text
- http://demirlermetal.com/resimler/files/66377660441.pdfIn PDF document text
- https://olterus.info/contents/files/dumav.pdfIn PDF document text
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a01b1164fce---bojuguzapupotilakuserit.pdfIn PDF document text
- http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612682799c5fe---57671939442.pdfIn PDF document text
- https://shop-ecobati.com/medias/upload/files/gobed.pdfIn PDF document text
- https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/d90f539a1de810e6f56025bab26e663a/tiworamavazovov.pdfIn PDF document text
- https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1609af74e1701a---4687501968.pdfIn PDF document text
- http://groupkaishan.com/d/files/15449059439.pdfIn PDF document text
- https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a82b8700378---goxolavam.pdfIn PDF document text
- https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/5q50k0t2aqbkbi4u3ph6e709oe/51834265524.pdfIn PDF document text
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098ec02a8ff5---88508250791.pdfIn PDF document text
- https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/e68d9ddb4f087ce5e844178925dd3ca5/24706378357.pdfIn PDF document text
- https://12shio1.com/contents/files/dilorojofiterusejig.pdfIn PDF document text
- http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a9a32e453e4---jugafaderifalujokejagufu.pdfIn PDF document text
- http://chinhlytailieuluutru.com/media/ftp/file/93029365194.pdfIn PDF document text
- http://darstin.com/userfiles/files/3340283979.pdfIn PDF document text
- http://pferdefreunde-brueckenhof.de/sites/default/files/userfiles/file/baniminasaxuzerixebaf.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bf45.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF45 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d757.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD757 | 16276 bytes |
SHA-256: 1908c0dc1dce72e15a3aed558bb25da8d0dbac9ae749df50c6c8808954740d41 |
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font_02_sfnt_off00010119.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10119 | 11120 bytes |
SHA-256: ecc1ef9511ae7c5e1dcb9b6eea7c8f3892d38a3fe5b848b225e375f8b1ec47ee |
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