MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to websites hosted on compromised WordPress installations, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The document's structure as a link farm, with many distinct hosts and disposable hosting patterns, further supports its use in a malicious campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9849
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://f27szerviz.hu/upload/files/53190963261.pdf
- https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ac013d6346---19254315649.pdf
- http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609d65d35dd29---18602910148.pdf
- http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075db7aca979---desejonokufodimatopi.pdf
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/2tredmu7mq3p4j5krse02lmu7q/38009712758.pdf
- https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/7143b68c1f0ae97bc6a5c46900117107/tevojepuramixenup.pdf
- http://tavernadelsnoguers.com/wp-content/plugins/super-forms/uploads/php/files/af02b88b041d223cfbe46da507da9955/84297223333.pdf
- https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/25126a14e88dcaaf32c5329ec43becae/vukesevusure.pdf
- http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081dab520f77---5556795827.pdf
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/160aab7e1bf26d---69440787616.pdf
- http://xn--e1aazeoc7d.xn--p1ai/images/shared/file/27346273315.pdf
- https://www.sehersirin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078514ad9b44---54101139933.pdf
- http://faxik.online/ckfinder/userfiles/files/95166286908.pdf
- http://mdknoodles.co/uploads/files/59014967065.pdf
- http://uamarkets.com/images/file/kiremexe.pdf
- http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606e87a91d321---16292018493.pdf
- http://namuvaldymas.lt/userfiles/file/91800003766.pdf
- http://abakus-routing.co.uk/ckfinder/userfiles/files/42522568424.pdf
- https://www.straightmyteeth.eu/wp-content/plugins/super-forms/uploads/php/files/a87a5d33cc89de3c2f13e944c04cd873/68818230314.pdf
- http://www.jobsincrete.gr/images/_user_na/file/jijom.pdf
- http://accessiblevehicleservices.com/userfiles/file/fogotuxi.pdf
- https://zohopinler.com/calisma2/files/uploads/losetiralaboraloj.pdf
- http://15thstpresbyterian.org/clients/d/d7/d7025cfb1d4df99eee5a588ecc3dd57f/File/27277043527.pdf
- http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bd9d91e4862---94773615331.pdf
- https://accu-split.com/userfiles/files/65884927174.pdf
- http://alemotta.com/resources/original/file/89268776146.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=how+to+copy+and+paste+pdf+files+into+word
- http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/cbb0df20b006381b87a753030113f6ba/gagokimezemelowosukagog.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_off0000e8a3.bineb96ab5c505c768abcfd5c9045519d6ffb10acab9fe3733d160592adbe67acf6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8A3 | 17132 bytes |
font_01_sfnt_off00011562.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11562 | 16792 bytes |
font_02_sfnt_off00012d79.binf9c20be42fc07daeda6c5d89ea993361546741c3c1db7af930c54325fcd2404d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D79 | 10804 bytes |
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