MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The document utilizes a link farm hosted on compromised CMS uploads, suggesting a phishing or malware distribution scheme. The presence of embedded URLs and the 'Fake invoice / payment lure' heuristic further support the attack pattern of tricking users into downloading malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a231733fba9---jularerizazewarisefuve.pdf
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b9140e93cb---pivafuluduwekexo.pdf
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dafec50eff---resova.pdf
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cb817dd2cf1---gebirojikuroledizudija.pdf
- https://calendarsunrooms.com/userfiles/files/merokar.pdf
- http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/6su8egsmehqmijfrtloclke7i3/memomofobosagogetisi.pdf
- http://ggmtc.net/userfiles/files/figiwojaratokodon.pdf
- https://stef-nancy.fr/upload/document/99729547120.pdf
- https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160be155e09cc0---11895883609.pdf
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/ftiv8eoturgedt3g61v0fb49b5/migaxewirata.pdf
- http://loadcell.vn/Images_upload/files/24004190371.pdf
- https://vietrocknet.org/app/webroot/img/files/dulagurelulowod.pdf
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a7789a0683---tavegoz.pdf
- https://allmassage.net/upload/file/20210506104316.pdf
- http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/1607a9e6a22dc1---49464009536.pdf
- http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/mcigdov9e1675pj9mie86qeqj2/rokirile.pdf
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a81f588fed9---76934581480.pdf
- https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/99a9751863ec20eddb8f900e9b9ca1b1/sutisulobabuvubo.pdf
- http://lorofilmes.com/Uploads/ckfinder/userfiles/files/65395518991.pdf
- http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/160705af7b271a---loreralupoge.pdf
- http://ahcxdq.com/uploads/file/290410199358.pdf
- http://imi.vc/upload/files/12133425995.pdf
- http://alpha-th.com/userfiles/file/60692928218.pdf
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606efbfb0e491---46111427332.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=bills+trying+to+be+passed
- 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_off0000fd69.bin7180c88828a2e7e01472eada10d6f8eafedc4f4caa11a1bb7d6e1e71cb086e04 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD69 | 19156 bytes |
font_01_sfnt_off00012dd5.bin6eb9701af43395a4bd816debc7388861deaec846e0c112ea95a1697b3b0348f2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DD5 | 10872 bytes |
font_02_sfnt_off000146b2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x146B2 | 16792 bytes |
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