MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress sites hosting PDF files, suggesting a link farm designed to distribute malware or lead users to phishing pages. The presence of embedded URLs and the nature of the heuristics strongly indicate a malicious intent to deceive users.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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 http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16126b7b0dad0e---giliruveralitezovokufuzig.pdf In PDF document text
- http://lueckerreunion2020.com/clients/e/eb/eba09433058400eda594a485f9004317/File/tokil.pdfIn PDF document text
- https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9eccd108a5---betotexuj.pdfIn PDF document text
- http://rotang.net/userfiles/file/xatowo.pdfIn PDF document text
- http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/160a9f95b0720c---miwularorunepewigirisani.pdfIn PDF document text
- http://zae.me/datafiles/file/7798223256.pdfIn PDF document text
- http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1608b3215dd3d9---wasekufenabiwufedibowir.pdfIn PDF document text
- https://thealloywheelcentre.co.uk/wp-content/plugins/super-forms/uploads/php/files/d5b8404f78a7f104dd830b8446f50d9c/japufazimajewarusowuge.pdfIn PDF document text
- http://fitviewer.info/files/file/tefuf.pdfIn PDF document text
- http://biolabsrl.org/userfiles/files/37064754828.pdfIn PDF document text
- http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/1608558460dc2d---25241170970.pdfIn PDF document text
- http://havefuntogether.com/image/upload/File/34598327613.pdfIn PDF document text
- http://tafgambiatours.com/userfiles/file/dezivilupifeditojijij.pdfIn PDF document text
- http://www.loicadesacavem.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160869edc55424---tekabobobanajifegowufime.pdfIn PDF document text
- http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16101041d09d22---39892914490.pdfIn PDF document text
- http://mama-care.com/UserFiles/file/rejowisafuwijefuromod.pdfIn PDF document text
- http://rowsontw.com/shopadmin/upload/files/nazago.pdfIn PDF document text
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/160d89563665db---73337096544.pdfIn PDF document text
- https://floridaholidayplanner.com/wp-content/plugins/super-forms/uploads/php/files/f3570d7b2dd76fb35b6cd26e9c9aa4df/joxatarino.pdfIn PDF document text
- http://mictrogiang.com/userfiles/files/8752933087.pdfIn PDF document text
- http://bmcnx.com/userfiles/file/sutijevidiwevufupewezipi.pdfIn PDF document text
- http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079bd7bc56ff---58237324466.pdfIn PDF document text
- http://www.flamanville-76.fr/upload/file/zawekuvanuvesuborowotu.pdfIn PDF document text
- https://hotel-la-licorne.fr/userfiles/file/lonatulaf.pdfIn PDF document text
- https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/68blnqstn6p6fgtk3lg29qhjm4/menawi.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=instagram+unfollows+on+its+ownPDF 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_off0000e8c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8C4 | 10564 bytes |
SHA-256: b593ffeec96978c07f0655df3c1861e10eaf7b83b7750ca31afb22afc2951813 |
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font_01_sfnt_off000100dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100DC | 18444 bytes |
SHA-256: 5ea9763462e00db27dafdfb76cd2012cbf3a59be49f6f3dc258af5247d67d27b |
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font_02_sfnt_off00013048.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13048 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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