MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external links, many pointing to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest this PDF is malicious, likely serving as a lure for phishing or malware downloads. No scripts were extracted, but the structure and URL patterns are indicative of a phishing or downloader campaign.
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://krisoc.ru/uplcv?utm_term=there+is+always+light+in+the+darkness
- https://maydangson.com/vietkiendo/upload/file/vazuxoganigis.pdf
- https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608156cc52e47---zodimijomolewikeg.pdf
- http://curry-box-deluxe.de/userfiles/file/risosepu.pdf
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/tlvosj0a6odure0osmlfkp4c2q/46116198999.pdf
- https://www.prestigeautobody.com.au/wp-content/plugins/super-forms/uploads/php/files/ae36cb645474cf2947cac4b02b709a16/8533161399.pdf
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160983b8dbe73f---65956524354.pdf
- https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b583c300d9b---66174754142.pdf
- https://lawyerupsmart.com/tempimg/file/xufemigivov.pdf
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/6ca8267db6f68b4e31a4867187f61dd7/53280913083.pdf
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/c779956a7a8f90d4f36b8c3237c07350/12221297371.pdf
- http://mdsalon.ru/img/lib/file/29124707598.pdf
- https://humble-brag.com/wp-content/plugins/super-forms/uploads/php/files/n136e7jj03saaut9at4dm7seo5/13862492836.pdf
- https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b561376ce3e---rilanepibevanekofag.pdf
- http://ecogestval.com/userfiles/file/41869495522.pdf
- http://macautemple.com/userfiles/file/wokididitaxezibufelafugo.pdf
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/160815ce2838dd---99064056323.pdf
- https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/9229568c74ef0d5fd084b1a09c31150a/zaneradowe.pdf
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/82436420de215e80c058830ab2907106/3707589761.pdf
- http://www.gonouvellezelande.com/files/zobuvafasabojejafusulifug.pdf
- https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9e618f3733---70792796412.pdf
- http://seibyou-koujien.com/files/files/penigete.pdf
- https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/3827f2889275249aa78060ccd9aa66dd/50743923087.pdf
- https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607b6838dc78e---favoju.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_off0000f1f5.bin2678decb896902ff51f997b1a4f3a2895b463c2b62ed4b0ad619705ffe169834 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1F5 | 10660 bytes |
font_01_sfnt_off00010a33.bine0083ff5dff21e6f7a337d01b2fae6de551b9e81eed43f4153c0648282f9de8d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A33 | 17224 bytes |
font_02_sfnt_off000136d8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136D8 | 16792 bytes |
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