MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to various domains, many of which appear to be compromised WordPress sites used for hosting malicious content. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic suggests the document is designed as a link farm on disposable hosting, likely to distribute malware or conduct phishing attacks. No scripts were extracted, but the structure and URL patterns are indicative of a malicious downloader or phishing lure.
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://chcial.ru/uplcv?utm_term=enable+others+to+act+leadership+challenge
- http://a-kamen.com/userfiles/file/mevid.pdf
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/lqini2mt5ua3rs0s104fsntqn6/29964755091.pdf
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607cdd2447334---47729218432.pdf
- http://www.assignproject.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099d70c5ddc6---26554554039.pdf
- http://ilovechardonnayhills.com/userimages/87788961790.pdf
- https://www.kunapak.com/wp-content/plugins/super-forms/uploads/php/files/71oqcp7fn1je7ltjhetiaa8u2a/jejes.pdf
- http://animalscipublisher.com/files/upfiles/file/56055444982.pdf
- http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fd5799bf85---fajetiworabowasifazolu.pdf
- http://buildinggodskingdom.com/webcms/file/mugikigifuxulu.pdf
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160862567c3d98---jesumufeniwipekakobif.pdf
- http://xn--9p4b29dncp2cc6y.net/upload/fckeditor/file/deselikaf.pdf
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/160961e7d6db0c---89843597144.pdf
- http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce15730fa3---vitinoga.pdf
- http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/6f80c292f2edc172a22f64a1119da75f/38525502783.pdf
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/e5s3ha1hoc4ob1lgomkmb4pgh3/fomovoberafadojixaka.pdf
- http://halaljones.com/uploads/files/73151962829.pdf
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609843c6987f3---64088041617.pdf
- https://www.psalighting.com/wp-content/plugins/super-forms/uploads/php/files/bb37c384592040eeb9f35ebe1506f058/19965015661.pdf
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/6b2159fccdaf36afb299aa45cac1be11/85188707583.pdf
- https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/qo714lmqpgs972se4a906jmpuu/34586509192.pdf
- http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a6c4721662d---19405171783.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607e760a28ce0---biguniramepaxozaxagu.pdf
- https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/3m7cibi9hlbdpqr0lqgj74s2l7/zulajejekej.pdf
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b426e1574a7---lofebiz.pdf
- http://kondicionery-vidnoe.ru/upload_picture/file/46993873985.pdf
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/160751676dd7b2---wixumopofixasetowija.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_off0000f067.bin6f1ebc5ab90b4f21d91d6338ba0e5cd5d1b9fa061d8a6db7c7e67f12531a36ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF067 | 10916 bytes |
font_01_sfnt_off0001092a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1092A | 16792 bytes |
font_02_sfnt_off0001213c.bind9d579aac4df29c5e0c2ac6f3568b42f3f4b2914a70b93d23d6cb8fe783e34ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1213C | 17040 bytes |
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