MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as 'Pdf.Phishing.Trojan' and ML classifiers indicated a high probability of maliciousness. Heuristics identified it as a link farm, with numerous embedded URLs pointing to potentially compromised websites or disposable hosting. The presence of 'utm_term' parameters in some URLs suggests an attempt to track user engagement with phishing lures.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://philabc.ru/uplcv?utm_term=modern+combat+5+ios PDF link annotation
- http://sweepinstyle.com/userfiles/file/73088643633.pdfIn PDF document text
- http://bradzo-ep.com/uploads/files/mitanijisugavebefifab.pdfIn PDF document text
- http://hasyo.net/files/file/45523235928.pdfIn PDF document text
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/16130bb311e4ea---jekefejiruso.pdfIn PDF document text
- http://hdurmuslar.com/images_upload/files/22917548186.pdfIn PDF document text
- http://anael.fr/fckeditor/userfiles/file/45233379474.pdfIn PDF document text
- https://advance-pack.com/editor_upload/file/61402916937.pdfIn PDF document text
- http://wwstationery.com/files/file/40141998631.pdfIn PDF document text
- https://dascalita.ro/app/webroot/files/userfiles/files/koreroviketol.pdfIn PDF document text
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/16135fd944ad7f---gozutasojokan.pdfIn PDF document text
- http://sromedical.com/file_media/file_image/file/34388238341.pdfIn PDF document text
- http://hzbmsj.net/images/upload/File/tasifiderabojuxage.pdfIn PDF document text
- http://denkobarbell.com/_upload/files/sukamesu.pdfIn PDF document text
- http://tetraeng.it/userfiles/files/jobaxovibukan.pdfIn PDF document text
- https://soudurelausiere.com/upload/editor/file/mopopuw.pdfIn PDF document text
- https://jiu-hang.com/upfiles/editor/files/satazew.pdfIn PDF document text
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/161339bc6d1c8e---bojid.pdfIn PDF document text
- http://full814.com/upload/files/29859242759.pdfIn PDF document text
- https://menu2uplus.com/images/file/3105099787.pdfIn PDF document text
- http://marcobernini.it/userfiles/files/bugokusezat.pdfIn PDF document text
- http://basyapiemlak.com/yukleme_klasoru/userfiles/file/jujuwebuba.pdfIn PDF document text
- http://www.verneteco.com/ckfinder/userfiles/files/xezizudaruxovujub.pdfIn PDF document text
- http://bjbtrh.com/files/pic/file/70470476556.pdfIn PDF document text
- http://cuacuonnhanh.vn/Images_upload/files/tawuvizitaleziliziwibofo.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_off0000ee64.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE64 | 20132 bytes |
SHA-256: a6f3f246f2e3f55bd06939e672db8a9fe98aa935c6087a62945c6ac16c01862e |
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font_01_sfnt_off0001224b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1224B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013a62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A62 | 10752 bytes |
SHA-256: e61dc78e531157862acfbe0a20e57b62ff8874af1cdfb3b3e7c0442d4a6cc4c6 |
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