MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains multiple links to external PDFs hosted on compromised CMS uploads, suggesting a link farm designed to distribute malware or lead to phishing pages. No scripts were extracted, but the presence of embedded URLs and the nature of the heuristics point towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9848
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://premiumvipbusiness.com/wp-content/plugins/super-forms/uploads/php/files/17013bf8bb499e069650860cfc673fae/10402824407.pdf
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f042da9f79---panazeg.pdf
- http://cz-synergy.cz/data/file/94188799384.pdf
- http://mirandatutoringcentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16090db7910000---98159066852.pdf
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1606fd0a0b9dc2---89553672612.pdf
- https://iominneapolis.com/wp-content/plugins/super-forms/uploads/php/files/3bea806d2685012351554b26f9e1dca0/jubikizuzibirizanak.pdf
- https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c344c65a166---sitozebugozutofumitiworir.pdf
- https://www.lashharmony.co.uk/wp-content/plugins/super-forms/uploads/php/files/hhdnaclsuo9efu0rufsbbi5a3t/fonikalorotipufuzodufu.pdf
- http://ackerviewguesthouse.com/userfiles/file/98138592648.pdf
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/160845789123cd---33786271298.pdf
- http://rszm88.com/upfolder/e/files/20210618081502.pdf
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b81196af08b---69772215271.pdf
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/3a54e8c59fd7d6b764f6ea5250e6e17d/rotafenotoripon.pdf
- http://giaoducvietnamtv.com/images/ckeditor/files/12427210735.pdf
- https://detectiveoffice.net/userfiles/file/36119676278.pdf
- https://egyptsuntours.com/userfiles/files/99785628761.pdf
- http://ooexperience.be/assets/Image//files/95261063688.pdf
- http://phenix-security.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607ad0f4a0f54---36584973243.pdf
- http://debden.org/userfiles/file/1959539854.pdf
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/160b028445591d---17434528318.pdf
- https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/24dee984eeaf50ae8cc9f5828b02f515/xidikix.pdf
- https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/ie66jcm0t9d15oq5poho9b0mli/34892060564.pdf
- https://tecnicadovolante.com/images/file/piragokejuviruvu.pdf
- http://samuiluxurytravel.com/Uploads/file/gumozizusu.pdf
- https://www.rekalibracija.com/wp-content/plugins/super-forms/uploads/php/files/f50dc5335c1472e66782a6911729aac0/26977164351.pdf
- http://autoscuolavalerio.it/userfiles/files/94426762075.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=spray+nozzle+droplet+size+chart
- 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_off0000ee94.bin07b7469b03153fc7b81759187ec82a74bba832972f0a4afb8d6fc7c39a52e7d0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE94 | 17512 bytes |
font_01_sfnt_off00011ce5.bin3bbf24a766aae42d2e1ca4c2575c89ffd906f6df6bcb47c0ba5e1bda2392f79a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CE5 | 10860 bytes |
font_02_sfnt_off000135f3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135F3 | 16792 bytes |
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