MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and multiple external links, with a high-confidence heuristic identifying it as a link farm on disposable hosting. One specific link, http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/rigukog.pdf, is flagged as a potentially malicious URL. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for downloading a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://mobiliteit.nu/files/lenabimugij.pdf In PDF document text
- http://www.synagoge-stommeln.de/ckfinder/userfiles/files/65525332028.pdfIn PDF document text
- https://thebottombillion.org/business_school/uploads/file/nalaj.pdfIn PDF document text
- https://ww150001.linebot.net/upfile/files/20210908171158.pdfIn PDF document text
- http://komputerzagrosze.pl/userfiles/file/logupimapi.pdfIn PDF document text
- http://meyanko.com/userfiles/file///rudefekarifa.pdfIn PDF document text
- http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/rigukog.pdfIn PDF document text
- http://www.drivingschool-brno.cz/files/files/88056147962.pdfIn PDF document text
- https://lanna-flyingclub.com/ckfinder/userfiles/files/pevaluredizibawepuvarurug.pdfIn PDF document text
- https://tnmkor.com/FileData/ckfinder/files/20210915_428FCCB5CAB1D331.pdfIn PDF document text
- https://parfumzone.ro/files/file/tusem.pdfIn PDF document text
- https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/b6f7b369997e3f6e1926f00402b7dde6/29030884906.pdfIn PDF document text
- http://www.tomasjelinek.com/img/pub/file/sulorewewajazegugixixib.pdfIn PDF document text
- https://0800-707-808.com/upload/ckfinder_temp/files/20210924223134.pdfIn PDF document text
- http://kasand.com/userfiles/retubejaberifogodaberi.pdfIn PDF document text
- http://thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/lixiwilefizuxatixasasat.pdfIn PDF document text
- https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/e4f1481e9cd93c5ec7c5bbe526edf06e/12768289389.pdfIn PDF document text
- http://zgkimsteszew.pl/img/upload/files/walelukopotunu.pdfIn PDF document text
- https://bbpartner.cz/userfiles/file/kawilakavevakosadakewaxak.pdfIn PDF document text
- http://laserinnsbruck.com/static/25194580913.pdfIn PDF document text
- http://the-bom.kr/upfile/files/96074081152.pdfIn PDF document text
- http://coyada.com/up_images/up_images/gutekatizivobesa.pdfIn PDF document text
- http://9262895.ru/ckfinder/userfiles/files/rexesitaxedi.pdfIn PDF document text
- http://www.pilartangguh.com/file/7707483872.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=apps+from+android+to+iphonePDF 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_off0000b882.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB882 | 19048 bytes |
SHA-256: 9febd63ac65c024587b7c6d2ba07a997f766ea6ad714543ef183980ca7d342eb |
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font_01_sfnt_off0000e973.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE973 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001018a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1018A | 10700 bytes |
SHA-256: fe6455c2330950ad5ac1eb7781f4525b3ec3ca42f6b006eb30d817a550df18e8 |
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