MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to distribute malicious content or phish users. The presence of external URIs and link farm heuristics strongly indicates a malicious intent to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://aodaibooking.com/FileData/ckfinder/files/20210626_A4DB5D5AEBEFD6B3.pdf
- http://mintaialuminum.com/d/files/98077353845.pdf
- https://holyfamilyhospitals.com/ckfinder/userfiles/files/fuzurutuj.pdf
- http://trevelsi.ru/ckfinder/userfiles/files/jopeduwer.pdf
- https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/160cd6d68d82d7---dajajovelufinomigas.pdf
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/16080a45caff0d---81541592846.pdf
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3a40c8e87056c25df63443284d588a4c/10958128067.pdf
- http://fine-cottage.ru/userfiles/file/ketukugofedekebinoliluke.pdf
- https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1607eed9783458---welunuxilowokabuziwafosu.pdf
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/rueluo5o9uianlh0dkdcqokki6/famuzonawulimatawos.pdf
- http://hrjok.com/uploadfile/file/59952683403.pdf
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160964962f421c---18800269726.pdf
- https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/b4676fd92261ba87c52da52103f6caa2/85387159134.pdf
- http://donateagift.eu/userfiles/file/98673590393.pdf
- http://hollandunitedreunion.com/clients/5/52/52f3fdf721cdccceb566e47094f1d9de/File/nabefegorowar.pdf
- https://activepymes.com/pub/file/511853567.pdf
- http://flirdining.com/uploads/files/jobejabalimitazupal.pdf
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083bbefa4015---16775495998.pdf
- http://chickendaylacrescenta.com/uploads/files/sidix.pdf
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/c6o9jdj1784ljd2caetn3rjg7f/dezupidi.pdf
- http://asdgolfclubtoscana.com/writable/public/userfiles/file/raruxokukavuledida.pdf
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c044f0ccc0c---digutudupuzusopevozixibo.pdf
- https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/ud4tj0ado2tll9l63kkl1mp692/jovoriwep.pdf
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16089eb291018f---gebelunipuziw.pdf
- https://celebicatering.com/upload/ckfinder/files/lumuxavagakunisunupovexan.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=papillary+renal+cell+carcinoma+type+2+prognosis
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f31e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF31E | 16792 bytes |
font_01_sfnt_off00010b35.bin31da030222131b7370fafdd25d17c344947009eabb2578686be07535808e188c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B35 | 10952 bytes |
font_02_sfnt_off000124a9.bin7e376cc7406ecd1ff43d23f3937ed5ec554aeeead107f98bb8f9acb9d141e042 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124A9 | 16752 bytes |
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