MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious by ClamAV and an ML classifier. It functions as a link farm, containing numerous URLs that point to various websites. Several of these URLs are hosted on compromised WordPress sites, indicating a potential phishing or malware distribution scheme. The presence of multiple external URIs and links to compromised CMS uploads strongly suggests a malicious intent to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://coretry.ru/uplcv?utm_term=cbt+worksheets+for+obsessive+thoughts PDF link annotation
- https://jfefood.com/wp-content/plugins/super-forms/uploads/php/files/c339871003443cd0128b7eae395e49e3/37069091283.pdfIn PDF document text
- https://kopari.hu/files/file/14044242023.pdfIn PDF document text
- https://cqc-material.com/app/webroot/userfiles/files/wodom.pdfIn PDF document text
- http://netflor.pl/upload/File/luwipevafewex.pdfIn PDF document text
- http://writtenmail.com/upload_images/file/56274210000.pdfIn PDF document text
- https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/a9a3dd1c2beabf7539079a341c325244/tawajemumeku.pdfIn PDF document text
- http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160f8990a8aa08---99454730402.pdfIn PDF document text
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161005a692af74---12973776037.pdfIn PDF document text
- https://xn--80aaijz0c.xn--p1ai/ckfinder/userfiles/files/dojul.pdfIn PDF document text
- http://drivingschool-brno.eu/files/xixavafitokisuwez.pdfIn PDF document text
- http://fogathajtohirek.hu/fckfiles/file/17418760567.pdfIn PDF document text
- https://12shio1.com/contents//files/253779649.pdfIn PDF document text
- http://opakowania-loga.pl/zdjecia/fotki/file/vetokowiwamubidifibaw.pdfIn PDF document text
- http://ahlhy.com/uploads/file/27204145273.pdfIn PDF document text
- http://refta-bg.com/userfiles/file/34084833953.pdfIn PDF document text
- http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/8725d05602c58d91d9661fd8954f28b6/40259093207.pdfIn PDF document text
- http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/ddb3m1apdj7bbsp9eb678ifvj0/rimamesinukixeg.pdfIn PDF document text
- http://phutungquanghieu.com/app/webroot/files/ckfinder/files/jilufiritiwe.pdfIn PDF document text
- http://webinside.pl/userfiles/file/32149921164.pdfIn PDF document text
- http://vistobrasil.net/uploads/file/11431584064.pdfIn PDF document text
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fe2501c78e3---86734825646.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010da9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DA9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000125bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125BB | 19124 bytes |
SHA-256: cb4d57969ed27a44799ca19c2aef597bfc77dc57e8d92db26edc898c1c839bc5 |
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font_02_sfnt_off000156f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x156F1 | 10696 bytes |
SHA-256: fb613f4d54feecd12d62e16251619f731a7f5436971f202f0861c4ebeab8029d |
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