MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document flagged by ML classifiers and ClamAV as malicious. It contains numerous external links, many pointing to disposable hosting or algorithmically generated URLs, indicating a link farm or phishing attempt. The PDF_RANDOM_URL_LINK heuristic specifically highlights a link to 'http://ambulatorioveterinarioscapindandrea.it/userfiles/files/64006858931.pdf', suggesting a potential distribution point for further malicious content. No scripts were extracted, but the overall structure and heuristics point to a malicious intent to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://bold-iot.com/uploads/files/202109131747065363.pdf In PDF document text
- https://luatsubienhoa.com/upload/ck/files/3125927102.pdfIn PDF document text
- https://zerling.eu/nico/images/files/limiveromiposimigutut.pdfIn PDF document text
- https://newegys.egyseg.eu/ckfinder/userfiles/files/32176369388.pdfIn PDF document text
- https://korvioinfotech.com/ckfinder/userfiles/files/59115672214.pdfIn PDF document text
- http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614bb81054c54---kerujazas.pdfIn PDF document text
- http://ambulatorioveterinarioscapindandrea.it/userfiles/files/64006858931.pdfIn PDF document text
- http://vector-food.com/userfiles/file/10961665385.pdfIn PDF document text
- http://smart.sut.ac.th/tsme/src/lib/ckfinder/userfiles/files/26382242886.pdfIn PDF document text
- https://lensprovn.com/ckfinder/userfiles/files/55967830835.pdfIn PDF document text
- http://sitarofindiamd.com/userfiles/file/53176596115.pdfIn PDF document text
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/587craq4bnk4a81suum2qtnbch/toxowijesujafalabexexoko.pdfIn PDF document text
- http://veraschwemmle.de/fckdata/file/zoporexewosawopaz.pdfIn PDF document text
- http://elistaprezentow.pl/userfiles/file/98142633449.pdfIn PDF document text
- http://alltechsro.cz/files/19527611083.pdfIn PDF document text
- http://residenceraffaellotorino.com/userfiles/files/89589933005.pdfIn PDF document text
- http://bertoniamministrazione.it/bertoni/public/file/34754800672.pdfIn PDF document text
- http://tramtronbetong.com/uploads/userfiles/file/97089771396.pdfIn PDF document text
- http://fourfoods.com/images/files/8745848372.pdfIn PDF document text
- https://derey.nl/app/webroot/files/userfiles/files/86991388154.pdfIn PDF document text
- https://eletroluz-al.com/_IMG/img_internas/file/74455248511.pdfIn PDF document text
- http://vivaibonomo.it/userfiles/files/51532943550.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=old+man+and+the+sea+free+pdfPDF 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_off0000b067.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB067 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c87e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC87E | 10576 bytes |
SHA-256: 61970e57c44b6996e52995d301cd7863fc03cbf9d6a4f16d9020e12bc825f05d |
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font_02_sfnt_off0000e06d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE06D | 14404 bytes |
SHA-256: 33802b0873abbeb98ae04732a65e91a3999b3bb464afc645f06c06f3e914f6fc |
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