MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by multiple heuristics as a link farm, with many URLs pointing to potentially compromised CMS upload directories. The ML classifier and ClamAV also identified it as malicious, likely a phishing or malware distribution lure. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it is designed to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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 http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1622f91977---vezitexejipodezinamafoxi.pdf
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/2gs06kse6e0je13dhlju2n4pq7/toxagejulogakafaloxaxige.pdf
- http://abwlanham.com/uploads/files/65391337297.pdf
- http://angelcabrera.com/FCKfiles/file/varinamorusebagepolo.pdf
- https://lochoanggia.com/upload/files/69783031640.pdf
- https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/88c5c65a67cbf8983c33da92437c1da4/2766384345.pdf
- http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a325cb6efb2---66425510423.pdf
- http://interface-referencement.com/userfiles/file/64095322772.pdf
- http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a88001b7f76---rigoxezi.pdf
- https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/95e98fb181700fbd5e6bc073c06b7c4a/57512786743.pdf
- http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f4bf475ea0---xinofaje.pdf
- https://twfern.org/upload/ckfinder_temp/files/20210527021720.pdf
- https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/49736922a8a6575e83feca2dad15872d/dafoxaxijavaseduzapawed.pdf
- http://ovartec.com/wp-content/plugins/formcraft/file-upload/server/content/files/160948141bbb17---41516899457.pdf
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16096d8ec6f8b2---gowaxeropin.pdf
- http://quickvideo.nl/userfiles/file/63508786824.pdf
- https://globalclassic.org/wp-content/plugins/super-forms/uploads/php/files/dberi1mjq9qa8f490ulsmrlfpq/jolekeniwowunagaguvosama.pdf
- http://biolabsrl.org/userfiles/files/fozuronaxefepimasom.pdf
- https://edcasys.com/ci/userfiles/files/kizebesumumubenorul.pdf
- http://apricomm.com/userData/board/file/xutoxojozowipikowubojimu.pdf
- http://esipro.fr/userfiles/file/27149674664.pdf
- https://www.endthestigmacounselling.com/wp-content/plugins/super-forms/uploads/php/files/550djq7en8stuh9ldkc9a464a0/wimileronapajejiwetubu.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=imo+chat+video
- 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_off0000efb5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFB5 | 16792 bytes |
font_01_sfnt_off000107c7.bin0f6e6bdf3efdaa7fe3d077f3c98191512f20c5a4a645749f2c8b9973ad920c17 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107C7 | 16860 bytes |
font_02_sfnt_off000133c3.binc2de900e9b83f5799acc59f9a293ed28073c6224ff5a6946204fa2714b6aff4c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133C3 | 10232 bytes |
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