MALICIOUS
166
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. Heuristics indicate it contains random and disposable URLs, suggesting it's part of a link farm designed to redirect users. The PDF structure and embedded URLs point towards a phishing or malware distribution scheme, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://huntic.ru/uplcv?utm_term=calculus+jon+rogawski+pdf PDF link annotation
- https://autopsrus.aerovents.com/ckfinder/userfiles/files/kugiva.pdfIn PDF document text
- http://happyorderfood.com/uploads/files/30917870952.pdfIn PDF document text
- https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/be0703ad4af9f20204a9b5059f7686a4/34166218321.pdfIn PDF document text
- https://alpinismbihor.ro/app/webroot/files/userfiles/files/77006231212.pdfIn PDF document text
- http://jainfarms.com/uploads/46589091166.pdfIn PDF document text
- http://studiozammuner.eu/userfiles/files/wutuduloxim.pdfIn PDF document text
- http://studioagronomoserragiotto.eu/userfiles/files/gadununoralemexidubotetip.pdfIn PDF document text
- http://autoscuolavalerio.it/userfiles/files/lojene.pdfIn PDF document text
- http://spartaksedlec.cz/spartaksedlec/userfiles/file/21730512533.pdfIn PDF document text
- http://labellebeaute.com.hk/ckfinder/userfiles/files/55026202720.pdfIn PDF document text
- https://farmaciasacoor.com/site/upload/file/66105500909.pdfIn PDF document text
- http://princeverma.in/uploads/files/86990980619.pdfIn PDF document text
- https://matraci.info/UserFiles/File/75461237652.pdfIn PDF document text
- http://panda-es.tokyo/yamituki-n/uploads/files/nikew.pdfIn PDF document text
- http://haitrungkim.vn/uploads/userfiles/file/ruvet.pdfIn PDF document text
- http://hanaelectric.com/userData/board/file/49513271364.pdfIn PDF document text
- http://robalton.es/Albums/images/file///bavinupudenat.pdfIn PDF document text
- http://mebizstekla.ru/userfiles/file/pabigug.pdfIn PDF document text
- http://mvsexpo.ru/admin/ckfinder/userfiles/files/bijokerawavemofiximivuvus.pdfIn PDF document text
- http://thegioixedap.net/upload/files/kazekonixirozevasusanov.pdfIn PDF document text
- http://ambulatorioveterinariobubiniregini.eu/userfiles/files/40713028450.pdfIn PDF document text
- http://viettranslators.com/webroot/img/files/66620760371.pdfIn PDF document text
- http://paulgraphics.paulsfashion.in/files/lofidikoj.pdfIn PDF document text
- https://prestinireedcorp.com/userfiles/files/14094022483.pdfIn PDF document text
- http://tatugigo.com/ckfinder/userfiles/files/68477934824.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_off0000b509.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB509 | 15284 bytes |
SHA-256: 2ba310ab5c7ce12a10647d2e0d3af69b7aeecce9da668fe0a36316b56eb6e769 |
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font_01_sfnt_off0000db90.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB90 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f3a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3A7 | 11004 bytes |
SHA-256: 1c21766f33054d27f153da2dd04e85b223adc16344ca6e75511ecb085cde99e6 |
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