MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains numerous external links, many pointing to compromised WordPress upload directories and disposable hosting, suggesting a link farm used for phishing or malware distribution. The PDF structure and embedded content indicate it's designed to redirect users to potentially harmful external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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://deltagroup.bg/uploads/file/13696341868.pdf
- http://mynigaoe.com/upload/file/20210515113517.pdf
- http://ranjitabiswas.com/userfiles/files/41259296078.pdf
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160976c9561116---6273912324.pdf
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607068f5008d3---linofu.pdf
- http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7386898f0d---nomijiburejenizulefiz.pdf
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8bd765107e---nevevomavejoxurefisopoz.pdf
- https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/14bb5a288836ac8dd6c02bfa3032fd60/18147072284.pdf
- http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/160717eaa5b5da---73477915850.pdf
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/1606f42664cd1e---wizubikud.pdf
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160930f07cf80b---33068044419.pdf
- https://alkhairi.co.uk/wp-content/plugins/super-forms/uploads/php/files/20fc8766e390fb25042227e74d879eed/ditugamojerowomatiwuwe.pdf
- http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b0d9d459dad---49347177909.pdf
- https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/fjdkgvci7bu9u4t1gjle1m1ttr/gokapifilozazataxupe.pdf
- https://klcmekatronik.com/ckfinder/userfiles/files/26886789988.pdf
- http://al-bandak.com/userfiles/file/85290794005.pdf
- http://boothbayharborshipyard.com/userfiles/file/kagiboroviwizeresaze.pdf
- https://myphi.biz/nbloom/fckuploads/file/23459792910.pdf
- http://nguyenquangcomputer.com/upload/ck/files/serimatomokewodidebofa.pdf
- http://rhoptik.cz/klienti/devel/sneznerolby.cz/ckfinder/userfiles/files/57538469115.pdf
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/1qka918lk2n1kjs8273gg438t3/42309902922.pdf
- https://zohopinler.com/calisma2/files/uploads/jizumetivekuxaduvomunen.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=air+force+ufo
- 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_off0000f0e3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0E3 | 16792 bytes |
font_01_sfnt_off000108f5.bin793e2ce67275947a4972556830b8f0e9983e7b8909bf994b544d4fa1348cd1a2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108F5 | 17352 bytes |
font_02_sfnt_off00013642.bin2810eaf5550fc1104bc717c135796a865acf9bddf3fc104a4dfbfb25b365dfab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13642 | 9832 bytes |
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