MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with numerous external URIs pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://smidgel.ru/uplcv?utm_term=epidermoid+cyst+scalp+removal PDF link annotation
- http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c7233a4c6d---muvizunazedusewelel.pdfIn PDF document text
- https://www.nrlandscapes.co.uk/wp-content/plugins/super-forms/uploads/php/files/0153aa3a34850aedb1eae376b2f8d44a/figujopob.pdfIn PDF document text
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/f93b3d3d0e54ac5c387d0ad9cde1042a/71592517992.pdfIn PDF document text
- https://www.myosiaffiliate.com/199trust/img/file/wunisupumotuxefe.pdfIn PDF document text
- https://www.alpha-dynamics.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160a1f00f2b403---ganomakojoguveze.pdfIn PDF document text
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/1609304e305ecf---kegigajuvavarubar.pdfIn PDF document text
- http://ahkjt.com/upfile/file/jewemuzulosugasiloki.pdfIn PDF document text
- https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608d872a0e850---36180784452.pdfIn PDF document text
- https://isosklo.cz./uploads/80219094584.pdfIn PDF document text
- http://littlepearlbooks.in/data/eimages/file/19924403991.pdfIn PDF document text
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16094a2116b7b5---92779278396.pdfIn PDF document text
- http://armanetti.com/images/30480767591.pdfIn PDF document text
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607cfd51abb96---bapikupisejumuteloworuwu.pdfIn PDF document text
- http://tablica-nieruchomosci.pl/uploades/fckeditorfile/18786832508.pdfIn PDF document text
- http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/160b0c2b7ab93f---549114107.pdfIn PDF document text
- https://robotics-institute.com/wp-content/plugins/super-forms/uploads/php/files/dubjen0a80t2ltng08ssam5pgn/xajinanivamotikuf.pdfIn PDF document text
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160aaf49a7642b---doxanojogazaxarufi.pdfIn PDF document text
- http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d573a220b59---74771038678.pdfIn PDF document text
- https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/pl8gualu447pl9bbbsk9sii6bj/resavigevewuseripotukuna.pdfIn PDF document text
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609acbc941177---nibolepuw.pdfIn PDF document text
- http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ce956111dc---liririkelip.pdfIn PDF document text
- https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/4502366063cfe4b4eedb8c892e04137c/sasaxokudexowud.pdfIn PDF document text
- http://chiangmai-clean.com/user_img/files/69492049081.pdfIn PDF document text
- 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_off0000f234.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF234 | 16660 bytes |
SHA-256: 68b30e75b8aefb6c926d1f8c5650276061328f3a579c3837a55ddeff1d9c4026 |
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font_01_sfnt_off00011db1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DB1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000135c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135C8 | 10732 bytes |
SHA-256: 7e42a32ee9166c8e6a8b5b3f86d3ca9fcd3b9258f17662bc6b7845c13c56b98f |
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