MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The document contains numerous links, many pointing to external sites hosted on compromised WordPress installations or disposable domains, suggesting a phishing or scamming attempt. The presence of a link farm on potentially compromised infrastructure is a strong indicator of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
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 http://olsztyntransportmedyczny.pl/userfiles/file/70866388265.pdf In PDF document text
- http://forter.vn/hinhanh/file/23433541012.pdfIn PDF document text
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fde5e6aebfd---24098892105.pdfIn PDF document text
- http://bigpictureresources.com/userfilesbigpicture/file/nunubuxe.pdfIn PDF document text
- https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/7u3cm16mevdc3mq5k0crbgisgb/weliboxujidakalenux.pdfIn PDF document text
- https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/6ev2d3l8hroreu0km8h0eifr1c/kumawolezorokosi.pdfIn PDF document text
- http://edv-denk.com/userfiles/file/82246732365.pdfIn PDF document text
- http://matsonconstruction.net/userfiles/file/borininemupifepageki.pdfIn PDF document text
- https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160bfe832b1c56---79609572550.pdfIn PDF document text
- https://www.travelticket.com.au/wp-content/plugins/super-forms/uploads/php/files/mjag7730ei9idqjur36o1si0hq/rawikusabuxan.pdfIn PDF document text
- http://debeleven.net/UserFiles/File/woludinox.pdfIn PDF document text
- http://travisreunion.com/clients/1/1d/1d9c560ef9ee6310b862f4c9d288d7bd/File/73707812744.pdfIn PDF document text
- http://rufullthrottle.com/wp-content/plugins/formcraft/file-upload/server/content/files/160778e30c4809---kuxewilunisevabono.pdfIn PDF document text
- http://madmojo.com/fckupload/file/zasejojidumogim.pdfIn PDF document text
- http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/edd250333f7d52b0d998d18e3565098a/6093856669.pdfIn PDF document text
- https://vieclamday.com/userfiles/file/96617911965.pdfIn PDF document text
- http://unsersohn.com/images/file/75998019476.pdfIn PDF document text
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16080b100bb05f---nunejev.pdfIn PDF document text
- http://kozelskadm.ru/files/uploads/files/54739758488.pdfIn PDF document text
- http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16079d729517bc---kadafejo.pdfIn PDF document text
- https://bearings.vn/images/ckeditor/files/mexuwe.pdfIn PDF document text
- http://hasici-pristroje-eshop.cz/files/file/51620242152.pdfIn PDF document text
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607bddd01c033---wizixikiravonaxeb.pdfIn PDF document text
- http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6ce17a451---55955639319.pdfIn PDF document text
- http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16081ad0996f3e---lojeleliguguwetowunofolu.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=imagenes+de+manualidades+navide%C3%B1as+en+foami+con+moldesPDF 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_off0000c7d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7D8 | 16844 bytes |
SHA-256: 220413e9137131922d959617d92c9f3e917cf4d105e155bc2182c961c0416f46 |
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font_01_sfnt_off0000f3d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3D5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010bec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BEC | 10944 bytes |
SHA-256: af90dc5bedec6e9c05510f9d51edec863cc2336cc4e8d6e81f053124ac0468fc |
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