MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF contains a large number of embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest this PDF is malicious, likely serving as a phishing lure or a distribution point for further malware. No scripts were extracted, but the extensive use of external links is the primary attack vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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=moisture+in+the+air+at+any+time+is+called
- https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/01be462df6744058e6af3d8cb88dcd2a/rizasunigo.pdf
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc62b8b034f---55662282489.pdf
- http://hjtech.org/admin/upfile/file/77056693266.pdf
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/85dd972d57abbd297fedc7d9272c2cfa/95914538654.pdf
- http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160a001753d63a---fasavadoxode.pdf
- https://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/160936a7977b34---74253519112.pdf
- http://ndt-tl.ru/upload/file/fazipebifutevugid.pdf
- https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/5j7bfe356u5fo0lnnhdfof81m6/baforodis.pdf
- http://kimandyoo.com/userfiles/file/8647433194.pdf
- http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b082f416b1d---62112682549.pdf
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b77ec08bebb---nupekemitu.pdf
- https://dtcprojects.com.au/wp-content/plugins/super-forms/uploads/php/files/dj6lsqhu1aa5ql49uigqq6uks4/rodidifezedifesavune.pdf
- http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/16073342b92bfb---68015808506.pdf
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/0e6bd2323d19f01efe225868df2de885/fuxomanedegoropam.pdf
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/ba0295bf2d8e0e8f9020471cd1c9e96a/38477270029.pdf
- https://asiarsolutions.com/userfiles/file/48074297618.pdf
- https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c7a03765ff8---sobowujapuwesevelale.pdf
- http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/b2eb022d10142a233f24ce90b78aa218/47812602630.pdf
- http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adccb914220---regovirexebebuxisi.pdf
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/3114faab0d359a7130dbca68b3eadca5/63069928398.pdf
- https://scriptdd.com/_file/file/fabux.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_off0000fc6e.bin9ab7df5b37b7a2c145d98862049c6c278bf8f06b239824b271af0f11736b5434 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC6E | 10844 bytes |
font_01_sfnt_off00011554.bina0035441496cd8fb2230f5e7d2aeef4310876397a985aa91c0fa77bd42a74a90 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11554 | 17756 bytes |
font_02_sfnt_off000142c9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x142C9 | 16792 bytes |
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