MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains numerous links pointing to compromised WordPress sites and other domains, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9806
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://irlanc.ru/uplcv?utm_term=loose+connective+tissue+contains
- http://kiavysocina.cz/UserFiles/File/75544291936.pdf
- http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607473bc257cc---19050758475.pdf
- http://szao-spb.ru/images/news/file/25832866943.pdf
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f17e63370a---85657254985.pdf
- https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160960e62a4014---dupowijoxudukuvejoga.pdf
- http://lohs69.com/clients/82366/File/jezukavodifufuralow.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607c4c1d1433e---zigedopobi.pdf
- http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606feb83d9233---97009775468.pdf
- https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160b84c4e4b2ab---91026621202.pdf
- http://alnoorcity.com/userfiles/file/81216836105.pdf
- http://asupuro.com/upload/save_image/files/99523825889.pdf
- http://amdind.com/userfiles/file/jidoso.pdf
- http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160a40b2b0467a---gupenojofozuganuxusemeg.pdf
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/1607878d7262f9---34352691052.pdf
- http://hopkinshigh62.com/clients/7/77/7764523e397120ad9b09b1da26998858/File/97263179010.pdf
- http://kme-kme.cz/files/file/lefixonudamubep.pdf
- https://greenlakepaint.com/ckfinder/userfiles/files/laxure.pdf
- http://modnyi-buket.ru/uploads/files/33916295273.pdf
- https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/16075df462ca52---50237978220.pdf
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a00fca93978---42327625135.pdf
- https://leganordavigliana.it/uploads/file/54747883405.pdf
- http://bio86.fr/fichiers/78770681427.pdf
- http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/b2e128e99a594b9974a3a899eae01379/sijase.pdf
- https://salubrismd.com/wp-content/plugins/super-forms/uploads/php/files/22002f55664c110c02c0ddb938aa5b9b/84593590865.pdf
- http://ozdesignhouse.com/app/webroot/uploads/files/zinaxibokunamujowenow.pdf
- http://ahoba85.com/clients/2/26/26d353b61ac95a99d7df5001a3d58300/File/90959558488.pdf
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/d810223b388f5d79ec43628d2f9e4a71/gidiwasaw.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_off0001139d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1139D | 16792 bytes |
font_01_sfnt_off00012baf.bine488e494229daf848b712621a7930fa61ff0775b79dabb8c215b5480f7320e80 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BAF | 16756 bytes |
font_02_sfnt_off0001575b.bin8752f58412cd7da54c6d51677028fac5ff329817f571b7a0d29dfd275c9c9edf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1575B | 10200 bytes |
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