MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ClamAV and an ML classifier, and exhibits characteristics of a link farm. Multiple heuristics indicate the PDF contains numerous external URIs, some pointing to compromised CMS upload storage, and others on disposable hosting. The embedded URLs suggest a lure for potentially unwanted content or phishing, as indicated by the 'utm_term' parameter in one URL.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://smidgel.ru/uplcv?utm_term=pokemon+omega+ruby+download+3ds+rom PDF link annotation
- http://xn--80aer5aza.xn----htbdepbihnfb8cyg.xn--p1ai/ckfinder/userfiles/files/34148214002.pdfIn PDF document text
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1612fe40d234bb---68854693919.pdfIn PDF document text
- http://jucal.es/images/file/15468287464.pdfIn PDF document text
- https://nwdglobal.com/ckfinder/userfiles/files/21451892311.pdfIn PDF document text
- https://hohsingfiber.com/ufiles/files/64988116211.pdfIn PDF document text
- https://confidence-ist.mktechsol.com/ckfinder/userfiles/files/9809304021.pdfIn PDF document text
- http://osteriadelcampanile.com/userfiles/files/favaxaliwesipuzadal.pdfIn PDF document text
- https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16145af8f7c4b0---tafedadi.pdfIn PDF document text
- https://nenmongdangquang.com/upload/files/80611216459.pdfIn PDF document text
- http://konberdbio.com/upload/files/xarawagojiwe.pdfIn PDF document text
- http://vetsnab32.ru/userfiles/file/51891637580.pdfIn PDF document text
- http://mkbeauty.vn/luutru/files/6317922028.pdfIn PDF document text
- http://epoxidice.ro/mm/file/wejogukelejol.pdfIn PDF document text
- http://imobiliariaimperio.com/files/files/tukamawiwasivupisafetobit.pdfIn PDF document text
- https://alzubidi.com/userfiles/files/ratuvefadexokoninex.pdfIn PDF document text
- http://teormech.ru/teormech/usrimg/file/23767937178.pdfIn PDF document text
- http://talleresjpg.es/img/file/13385590532.pdfIn PDF document text
- http://andlupa.com/userfiles/file/larudafopi.pdfIn PDF document text
- http://www.taxivanclass.com/uploads/ckfinder/files/88582765297.pdfIn PDF document text
- https://orrizon.ru/images/file/zafagijiduxaromitoj.pdfIn PDF document text
- https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/c141qgqcc8f37j7u0cote90cu8/xudobibetijogijezib.pdfIn PDF document text
- https://isabellepieman.com/userfiles/file/lefifukeze.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_off0000d38a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD38A | 18320 bytes |
SHA-256: 6a89d0a53f11c279b5ec132316e7d1ba40d38fe87a6a54c1b13fb7b8eb292d5e |
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font_01_sfnt_off000102b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102B7 | 11104 bytes |
SHA-256: ec39ec75ae5fda16f7c15857a7717be0cfac423cce7f92e6640d6fa6b7baaf38 |
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font_02_sfnt_off00011c87.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C87 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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