MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged as malicious by a ML classifier and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the overall structure point towards a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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 http://oroblupiscine.it/userfiles/files/gowupetedarurim.pdf In PDF document text
- http://maimungkorn.com/UserFiles/file/talaror.pdfIn PDF document text
- https://ilexgold.com/app/webroot/files/userfiles/files/domisesolev.pdfIn PDF document text
- https://zapret-rf.org/web/img/podborky/files/34820184274.pdfIn PDF document text
- http://palaciodelosnavas.com/userfiles/file/fadurofijuxamizexodelozu.pdfIn PDF document text
- https://takitech.hu/userfiles/file/26754562324.pdfIn PDF document text
- https://sportuna.be/ckfinder/userfiles/files/bimin.pdfIn PDF document text
- https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/16140f9958a8b1---debad.pdfIn PDF document text
- http://fornacedelia.it/userfiles/files/23277591522.pdfIn PDF document text
- http://www.mmd.ntou.edu.tw/ckfinder/userfiles/files/78206704508.pdfIn PDF document text
- https://quanticabtl.com/cms_2018_quantica/sgi_userfiles/userfiles/files/bolerorasa.pdfIn PDF document text
- http://macierz-grodziec.org/files/file/lolijebu.pdfIn PDF document text
- https://eetravel.net/file/33733084438.pdfIn PDF document text
- http://www.macrolepidoptera.hu/userfiles/files/famokad.pdfIn PDF document text
- https://mimpishio2.com/contents/files/vozavuvopugubuve.pdfIn PDF document text
- http://evrokomplekt.ru/userfiles/file/2999657211.pdfIn PDF document text
- https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/1615422eddd27b---56061069043.pdfIn PDF document text
- https://clinicaabrahaoosta.com.br/ckfinder/userfiles/files/wazow.pdfIn PDF document text
- https://shevtsov-art.com/uploads/files/78078312359.pdfIn PDF document text
- http://eprdel.cz/userfiles/file/93105547526.pdfIn PDF document text
- http://auswallendorf.de/userfiles/file/tukavuruzivapa.pdfIn PDF document text
- https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/e345acb0c05b1b15a9f572f84116f6e4/95684764403.pdfIn PDF document text
- http://urparitet.ru/admin/ckfinder/userfiles/files/pexuzov.pdfIn PDF document text
- https://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/00626a83f0bbdfd8e12dc0607191b540/18126920738.pdfIn PDF document text
- http://feedproxy.google.com/~r/Xvkpad/~3/TxADE9PCSUw/uplcv?utm_term=how+to+give+formula+milkPDF link annotation
- 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://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_off0000d5e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5E3 | 17504 bytes |
SHA-256: f021f375a639de317676136e1a2bb7db3d75bf5f30df790b2a87d2131a447e4a |
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font_01_sfnt_off00010310.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10310 | 10620 bytes |
SHA-256: a122d37ea60df5a4e391289bc22bfca08f8d26ffe45a1a9a6057ac364445f8fb |
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font_02_sfnt_off00011b71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B71 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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