MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to distribute malicious content. The ClamAV detection and ML classifier strongly suggest a malicious intent, likely phishing or malware delivery. No scripts were extracted, but the structure and URL patterns are indicative of a malicious PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://upbilbao.com/ckfinder/userfiles/files/kepimejajek.pdf
- http://bestbelly.org/content/files/files/66967532016.pdf
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/161373198d5145---rapanajizajabi.pdf
- https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/a739b363f3ec97c2209253f0023e4418/jigutazizapozam.pdf
- http://origo.ws/userfiles/file/35469061319.pdf
- http://medical-1669.com/userfiles/files/64191521348.pdf
- http://tokyosushilohaus.com/uploads/files/69432549369.pdf
- http://buzmakov-ua.ru/admin/ckfinder/userfiles/files/veteg.pdf
- http://agavietnam.com/img/files/87963139437.pdf
- https://wct.goldcrownresort.com/magazine_files/files/risogulivirakuxatilikefo.pdf
- https://dbjadow.pl/attachments/file/gomikupumalajufuzine.pdf
- http://vaness-sens.fr/ckfinder/userfiles/files/5155244719.pdf
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/161329c7a0291c---51685775463.pdf
- https://economiadecomunion.com/ckfinder/userfiles/files/zivefegulegisobaji.pdf
- http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/16133d592e8cc0---60236904196.pdf
- https://olterus.com/contents/files/kikuxug.pdf
- https://okinawa4d.com/contents/files/ropuwajuwavumasuv.pdf
- http://tavaszitura.eu/userfiles/files/tiberu.pdf
- http://suriyedostlukdernegi.org/image/files/6058843040.pdf
- http://suachuamaydemtien.biz/userfiles/file/23446092087.pdf
- http://ageddfjtj.pretty-match.com/upload/files/38037697189.pdf
- http://lsneotek.com/ckupload/files/65810087772.pdf
- http://mega-stainlesssteel.com/uploads/image/files/36781937395.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=naira+marley+new+song
- 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_off0000d3f5.bin4aeee709a23f3b3e84b1ce97b2ddd569297618868aee88761ea514fc940077ed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3F5 | 10528 bytes |
font_01_sfnt_off0000ebfc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBFC | 16792 bytes |
font_02_sfnt_off0001040e.bin9530b86c59a5023ac2b137b31e942bbd93c8adf1b7e9151530e84d1c4b996f12 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1040E | 17096 bytes |
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