MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains numerous external links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. While no scripts were explicitly extracted, the presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics indicates a strong intent to direct users to external, potentially harmful, URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 https://pistant.ru/uplcv?utm_term=monthly+management+report+sample+pdf
- https://gagiongvitgiong.com/ckfinder/userfiles/files/67731157419.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/16096a12aeedec---vaxomawewopumoxuje.pdf
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086982a24c62---fuvafodomuvalumiduwiwewi.pdf
- http://telmeed.com/web/ckfinder/userfiles/files/buzunafusuxezug.pdf
- http://longhornrings.com/clients/0/08/08da48574b41509ac7bedcf2500dc652/File/32304707237.pdf
- http://tamker.hu/userfiles/file/89071761049.pdf
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ls3co2kgp404fb33taflm8qkd7/49893887266.pdf
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160832574f0104---fekazopafojopivopulore.pdf
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16098324e896d7---tetilax.pdf
- https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609375467dcdf---xanebepasofego.pdf
- https://q-web.ro/wp-content/plugins/super-forms/uploads/php/files/c7e6dcp6hsdsbtb0jelcmo0v9h/gogemulusowofir.pdf
- https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1607e9b75db667---12010214417.pdf
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/d3bf5214d36b0a797befb9b754d7f929/10924890697.pdf
- https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/fefcb190c6e30d55957f4b1f04f367f9/24513751524.pdf
- http://munnarinfo.in/userfiles/file/gixunagutafuvirilimid.pdf
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/cb8faa8ce8c79c81f30faf3df652fa1d/43500513014.pdf
- http://artgraf24.pl/userfiles/file/zitetolip.pdf
- http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/1607a7903e9dda---bibofamufi.pdf
- https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/a1783963fef671a7eceb0f75c2c2fddf/ximitizuresolebunawe.pdf
- https://nacionalequipamentos.com/ckeditor/uploads/files/21395841060.pdf
- https://olgapopovaphoto.com/wp-content/plugins/super-forms/uploads/php/files/8eee2c35794dae3ee2d4de696771490d/99559113020.pdf
- http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b881a14b328---widunubirujekifu.pdf
- 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_off00010839.binc3a843f4bc5e0ce69b9b34a21a55340b2ede31c565795574131fa51bdd809dd6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10839 | 10960 bytes |
font_01_sfnt_off0001214b.bin1263f87725e9552524d4ba602dcd9cd01fa91d0f5c2f3b6ce1734956756327b8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1214B | 17124 bytes |
font_02_sfnt_off00014e07.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14E07 | 16792 bytes |
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