MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting a link farm or phishing campaign. The presence of these links and the overall detection score strongly suggest the document is designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://synerhu.ru/uplcv?utm_term=is+hair+electrolysis+permanent
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b4373d3d1f8---75285939340.pdf
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609e8ac73907d---12579287598.pdf
- http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081b6ab515f6---fuvimowi.pdf
- https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/f724ba10c42aee64f2ded1d750fd1d61/391882108.pdf
- http://mebizstekla.ru/userfiles/file/sukageko.pdf
- http://119hero.kr/userData/board/file/28181263897.pdf
- http://haustechnik-hagenauer.at/jesinidavugofafivajugi.pdf
- http://sea-cruise.ru/ckfinder/userfiles/files/39985012351.pdf
- https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/23b03cd5e0461dbc970dcb1b8172b1bd/46407091880.pdf
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/1607e205044d03---gefometuwexasu.pdf
- https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16083a4b0764c4---palajitexekimel.pdf
- https://mbzl-pro.xyz/web/img/podborky/files/60627426689.pdf
- https://chambres-hotes-aube-bleue.fr/userfiles/file/73049129743.pdf
- https://birudongker.com/contents//files/29734198698.pdf
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/161010b875495c---pabexesuzebemibebep.pdf
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160bfd415bf587---67666070135.pdf
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607a220128d78---jasuf.pdf
- http://files.ibiza-ferien.de/file/49352598.pdf
- https://arte-salon.ru/upload_picture/tokaribizonanizapokazo.pdf
- http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/160721d36eb23c---gikabimono.pdf
- http://citysuji.com/ckfinder/userfiles/files/97314837397.pdf
- https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/160ecace12f575---relusumijuno.pdf
- http://asremajazi.com/uploads/files/kulekopejabitisawiki.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_off0000fc25.bina880063c990394aa81af7c786d77ec4110353183922275dd1b8d7b2c6d995792 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC25 | 10704 bytes |
font_01_sfnt_off0001148e.bin479a3466c10ec7613040653d4c9f015da53e2634316ed728b738f62ccf482c59 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1148E | 17172 bytes |
font_02_sfnt_off00014148.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14148 | 16792 bytes |
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