MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URIs pointing to compromised WordPress sites and other domains, suggesting a link farm designed to redirect users. The presence of these links and the PDF structure strongly suggest a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://catamma.ru/uplcv?utm_term=vampire+diaries+season+1+watch+online+with+english+subtitles PDF link annotation
- https://www.escon.it/wp-content/plugins/super-forms/uploads/php/files/4a45219a3882809877222460db957ad9/87841276460.pdfIn PDF document text
- http://abimobiliare.pl/pliki/File/26201363856.pdfIn PDF document text
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e1af2bc1e2---falevozunuxom.pdfIn PDF document text
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a965d8a5787---tomujunaburosaku.pdfIn PDF document text
- https://www.kcequipment.com.au/wp-content/plugins/super-forms/uploads/php/files/f68b200b4a98ee2ad28b30a633ece1a8/1242291287.pdfIn PDF document text
- https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/19eef6ba08e8596e0486c2d4fb848682/21828432940.pdfIn PDF document text
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/427ne6g61dh8q3qq1lq36d73f7/65359179281.pdfIn PDF document text
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/05toek9635n4gmc3igsoot5clq/56304756911.pdfIn PDF document text
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f9cb9d4483---godesel.pdfIn PDF document text
- https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/qhiqse8p0dasb15tmatrageuh6/falijezemekebojabis.pdfIn PDF document text
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160bd603a6a502---gasiba.pdfIn PDF document text
- http://championshipsportsrings.com/clients/23492/File/pagikut.pdfIn PDF document text
- https://vijyaiprismcrm.com/userfiles/files/32736774555.pdfIn PDF document text
- http://hintzfamilyreunion.com/clients/1/12/12a2788c5de59b93c87e4eff35998d4f/File/vigaruze.pdfIn PDF document text
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cef682b416---70992061944.pdfIn PDF document text
- http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/cdbe7334786471cd38a7ef3566be8541/zowelimexisigi.pdfIn PDF document text
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/16078def9cbf40---gepeboxezume.pdfIn PDF document text
- https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/160aec161abd13---fejopasamiximojon.pdfIn PDF document text
- http://stressmanagement-karriere.de/userfiles/file/banagotuwigavoxori.pdfIn PDF document text
- https://kipass.fr/userfiles/file/16418447417.pdfIn PDF document text
- http://shssailors1969.com/clients/3/36/366f78b21138e0f8005dfe6cc5e09e30/File/9065406689.pdfIn PDF document text
- http://ezstreetautosales.com/clients/876244/File/siwejerozizememaremiro.pdfIn PDF document text
- https://specialbrands.gr/wp-content/plugins/super-forms/uploads/php/files/23705c2168fb7debf8a94aa9b3c0151a/6213545658.pdfIn PDF document text
- https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/5ce5c04c0858514f4e1d207787f160d6/80837352204.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_off0000f27c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF27C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010a93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A93 | 11308 bytes |
SHA-256: e5bfb02de3dac408cf2394053970c9b45da3d96a42ad53b7e57041639860b1ab |
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font_02_sfnt_off0001249b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1249B | 18140 bytes |
SHA-256: 7ab0b4c987b34b7b403a624301a4cc380dabcbd0655ebea83725273b422e0c1e |
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