MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains a large number of embedded URLs, many pointing to compromised WordPress upload directories and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. No scripts were extracted, but the overall structure and URL distribution indicate a phishing or malware distribution attempt.
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://huntic.ru/uplcv?utm_term=benign+mammary+tumors+in+dogs
- http://helder-effect.nl/userfiles/file/81851714324.pdf
- http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c433f525c7c---39017202287.pdf
- https://bonpetsupply.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f45bf85d1b---23895278084.pdf
- http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071f4bee3128---bavabixedakorotokip.pdf
- http://yonseri.org/userfiles/files/redivubaberefedupinapiv.pdf
- https://tavcam.com/upload/ckfinder/files/82992571757.pdf
- http://wojno-stal.pl/pliki/file/sevisupewofawotew.pdf
- http://aldo-ins.com/userfiles/file/2513591059.pdf
- http://lab4050.com/upload/editor/file/49269726777.pdf
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8fc06284bc---moxexexivolejanemenudes.pdf
- https://actor-conseil.com/files/file/futusipisata.pdf
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/160809ccf1e76a---bozoxenorodapesepala.pdf
- https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfd14f61c3d---jiwovuginewuzasewapizulum.pdf
- http://bjaimama.com/data/upload/2021/05/file/202105260348397781.pdf
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb10cc8ef1---loketewofafekalad.pdf
- http://weymouthhighschoolclassof62.com/clients/5/50/50fe23896e84432c97ff20d680692bb9/File/55165134609.pdf
- http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/160789a6d235ee---dilokovusex.pdf
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160b520a36424a---42184861320.pdf
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/160ad95589b979---tadalamopifusekaxiti.pdf
- http://mascotdd.com/file_media/file_image/file/43806773213.pdf
- http://songiadahoaian.com/upload/ck/files/vilegibukujasuvojelabo.pdf
- http://cuatro-pr.org/sites/default/files/file/68382760520.pdf
- https://penal-garazh.ru/files/sulujikosoxetave.pdf
- https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/586adf13d503a8bfa59deb364bcd1f8e/13793580403.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_off0000cb25.bine4e0b9407cda0a87bf3ae4080b21de73ea9500978bee35c8b1cb5cdf6d23c8a8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB25 | 10812 bytes |
font_01_sfnt_off0000e3ed.bin32b22f0e57657a43b146cb5a8fb253f3dd8e52cf129edac2acea3f635e3b06df |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3ED | 17432 bytes |
font_02_sfnt_off000110da.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110DA | 16792 bytes |
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