MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with many URLs pointing to compromised CMS upload directories and disposable hosting. These links likely serve as lures to phishing sites or malware downloaders.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607064ea2893b---kurokigijijukibibuguro.pdf In PDF document text
- http://armanetti.com/images/39584007869.pdfIn PDF document text
- http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0563d0abfd---89807589320.pdfIn PDF document text
- https://trexanh.net/upload/files/5318733613.pdfIn PDF document text
- http://bephoangdung.vn/uploads/ckfinder/files/72884771182.pdfIn PDF document text
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606d349ecffa6---23586770089.pdfIn PDF document text
- https://pensionatiitalianiinportogallo.it/wp-content/plugins/super-forms/uploads/php/files/321574fe20b7b00bd4e08be726327eca/xuwavakopepirijovux.pdfIn PDF document text
- https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/833effac36ff2f7d5b12fce30f8ca134/gonitirimebu.pdfIn PDF document text
- http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098787979fb7---zotufafovutasokexenap.pdfIn PDF document text
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ca382bbafe5---81403154926.pdfIn PDF document text
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16074a410e2863---kubudewizapep.pdfIn PDF document text
- http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160c057f8b4fc2---52217782726.pdfIn PDF document text
- https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/ctcpt3gi6vqhra2f66nguss573/37657415319.pdfIn PDF document text
- https://rivaflo-south.in/userfiles/files/97785016819.pdfIn PDF document text
- http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607826b6eca5c---94829101121.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=woman+and+her+horse+quotesPDF link annotation
- 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_off0000e1f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1F1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fa03.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA03 | 16640 bytes |
SHA-256: a8d12a9cf7702ed390ab957421b6029847d10e924f59c0b2e41e184c250f1248 |
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font_02_sfnt_off000124fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124FB | 10612 bytes |
SHA-256: 573c7eb565a611001c48987e3e944b205bbf4e9ad34cde92cbe1ff46d42aaff7 |
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