MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to potentially compromised or disposable hosting, suggesting a link farm designed to redirect users. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this, indicating the PDF is part of a scheme to distribute malicious content or phish users. No scripts were extracted, but the overall structure points to a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://foto-preiss.at/upload_files/files/96781541754.pdf In PDF document text
- http://lyshiying.com/d/files/madakowirukukex.pdfIn PDF document text
- http://89928386.com/uploads/files/202109021602008534.pdfIn PDF document text
- http://pro-elec.ru/ckfinder/userfiles/files/sovarapunimatedewabit.pdfIn PDF document text
- https://dragonexpressml.com/userfiles/files/bavuvi.pdfIn PDF document text
- http://sangtaoad.com/uploads/userfiles/file/7457806319.pdfIn PDF document text
- https://mcsfood.com/images/file/40206923202.pdfIn PDF document text
- http://logicamail.it/draft/media/61073533378.pdfIn PDF document text
- https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/1612f06fc6856f---61121426191.pdfIn PDF document text
- https://auto826.com/uploads/files/zonekajos.pdfIn PDF document text
- https://benhgout.net/uploads/Files/file/vogamotipawulalop.pdfIn PDF document text
- http://shethof.ch/cgi-bin/dynamisch/file/52953637756.pdfIn PDF document text
- https://tnmkor.com/FileData/ckfinder/files/20210907_A9F9E751BDE7EE36.pdfIn PDF document text
- https://senfina.top/uploads/files/rosewadeko.pdfIn PDF document text
- https://briljant-maleri.se/UserFiles/files/42992230417.pdfIn PDF document text
- https://la-klamm.org/userfiles/file/wuzedu.pdfIn PDF document text
- http://fujieshubao.com/zk/UploadFile/file/2021090918145373499.pdfIn PDF document text
- https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/16132db8ab3fa9---belelu.pdfIn PDF document text
- http://refpecsbelvaros.hu/kepek/files/30413904316.pdfIn PDF document text
- https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/ufoqu5vk8n5uk7400p48p2b3oh/tebizomirekubigenidipel.pdfIn PDF document text
- https://gabconstruction.com/ckfinder/userfiles/files/bifugu.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=gta+san+andreas+cheats+download+apkPDF 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://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_off0000d8b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8B6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f0cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0CD | 10736 bytes |
SHA-256: 2149fa82b67bd99ecc6f6afb10d3af0010dbe3c51c1c6404526e3134a9827287 |
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font_02_sfnt_off00010984.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10984 | 17816 bytes |
SHA-256: 0e70df0b4f499621d3e04a5b426c1d05ff5d9ea5eb42d6a54376a460d5e1f01a |
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