MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is often used to exploit vulnerabilities or redirect users to malicious sites. The presence of a link farm pointing to multiple external URLs, some hosted on compromised CMS uploads, further indicates a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://kildevangen.dk/files/gositafe.pdf In PDF document text
- https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/19db1d76eab58bfd56e284d2c0be7518/3895329276.pdfIn PDF document text
- http://www.nachtruhe.info/up/files/ziwubafewunobadejusudejon.pdfIn PDF document text
- http://bangdinhphucat.com/quangbasanpham/app/webroot/upload/image/files/2345757332.pdfIn PDF document text
- http://uekekb.ru/!upload/files/39370867953.pdfIn PDF document text
- https://namkhoasaigon.vn/web/images/files/kuvemubewusek.pdfIn PDF document text
- https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139453f98ef9---jetoxopisoreges.pdfIn PDF document text
- https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/670197b7c235951b8361458028c77d95/6581506366.pdfIn PDF document text
- https://sim2007.com/files/7831353975.pdfIn PDF document text
- https://sunnyrosesschool.com/userfiles/file/riwoxagisujanol.pdfIn PDF document text
- http://moskvaznaet.ru/upload/files/tuxedogutaju.pdfIn PDF document text
- http://headlinesdinerla.com/uploads/files/16268320487.pdfIn PDF document text
- http://ayurveda-shiatsu-qigong-nice.com/upload/files/saburuvimatode.pdfIn PDF document text
- http://vaness-sens.fr/ckfinder/userfiles/files/wewezajujimelasalarad.pdfIn PDF document text
- http://solar-makernavi.com/ckfinder/userfiles/files/4908806582.pdfIn PDF document text
- https://dubaimotorcycletours.com/uploaded_images/files/kedovilodusi.pdfIn PDF document text
- http://epoxidice.ro/mm/file/66715206943.pdfIn PDF document text
- http://e-pisanie-prac.pl/famprojekt_z_serwera/images/file/76033294892.pdfIn PDF document text
- https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133bfed2f562---lugitefunezarusinejede.pdfIn PDF document text
- https://phunhai.net/upload/files/30099546872.pdfIn PDF document text
- http://teen.plovdivweek.com/js/ckfinder/userfiles/files/wefuledizupadoj.pdfIn PDF document text
- http://kwiatmetal.pl/userfiles/file/majidadegelaperunukuw.pdfIn PDF document text
- https://reazfarah.com/ckfinder/userfiles/files/sesokesax.pdfIn PDF document text
- https://holcom-wd.holcom.vn/webroot/img/files/namavofajawoza.pdfIn PDF document text
- http://studiogaleazzo.eu/userfiles/files/rigubapom.pdfIn PDF document text
- https://www.bosingels.nl/ckfinder/userfiles/files/36448937181.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=4share+download+apkPDF 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_off0000e4a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4A6 | 10456 bytes |
SHA-256: 0cf0374f8946710256b8c8e698b2ea690554f84c8ae206f5b3c3fc93c6dcfc7f |
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font_01_sfnt_off0000fc68.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC68 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001147a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1147A | 17856 bytes |
SHA-256: b79bfdd9c948822a1f72235b2879e061bf870179e7889fed9c12e576b43ac197 |
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