MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. The file contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a phishing or malware distribution scheme. The presence of PDF-specific heuristics like 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' reinforces the attack pattern of leveraging compromised infrastructure for malicious redirects.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://pistant.ru/uplcv?utm_term=un+americano+a+parigi+score+pdf
- https://webmakler.org/userfiles/file/gogewurolu.pdf
- http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a42b1d9a742---rosemubale.pdf
- http://kjphotocon.org/data/userfiles/files/95463268310.pdf
- http://dztechfin.com/upload/file///40150218944.pdf
- https://responsible-tourism-alliance.com/content_file/files/77887303564.pdf
- http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7057bc503c---9599260476.pdf
- http://fioredda.com/userfiles/files/19033517708.pdf
- https://www.expoagrogto.com/wp-content/plugins/super-forms/uploads/php/files/f1omovqim8qpu6e4h7rpitik56/fusixoxalalotisuzulaxame.pdf
- http://trevelsi.ru/ckfinder/userfiles/files/kenaxijepilivovezajo.pdf
- http://www.petercar0937494634.com/upload/img/files/25948633882.pdf
- https://proetcontra.hu/userfiles/file/88729692648.pdf
- https://osikovo.eu/webroot/img/content/files/53766844433.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bde38200c01---77103070799.pdf
- http://ebslang.net/_UploadFile/Images/file/vixunolijupozefamilu.pdf
- http://ocvitlucky.com/vietkiendo/upload/file/ribepoduxop.pdf
- http://mabo-meccanica.eu/userfiles/files/54570472189.pdf
- http://hysansam.com/fckeditor/userfiles/image/96387949523.pdf
- https://satnamunicipalcorporation.com/admin/ckfinder/userfiles/files/xovoxe.pdf
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1609f066852153---geveb.pdf
- http://fine-cottage.ru/userfiles/files/raderuxuramila.pdf
- http://musiconthebay.org/clients/2/26/269dd5bc96e197da989a8dccc71442af/File/ripezinobodijinu.pdf
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160e986567de9e---55178402667.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_off0000cd6a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD6A | 16792 bytes |
font_01_sfnt_off0000e581.bind4562eb335d891055efdb9f0126cb9d2ce1a77606ba09e35e44fbcf25d1e0a42 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE581 | 10828 bytes |
font_02_sfnt_off0000fe2f.binbc0e4ce72aac8d52aeca03238b9d36c4b5af4f1a6b6d856a12f1ff58c4d8c686 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE2F | 18976 bytes |
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