MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM suggests the document is a link farm designed to host multiple links on disposable domains, likely to distribute further malicious content. While no scripts were explicitly extracted, the presence of numerous unknown URLs points towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 5
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://unibel.pl/pliki/upload/file/35954440592.pdf In PDF document text
- http://xn--j1aai7d.xn--p1ai/userfiles/file/71018181994.pdfIn PDF document text
- http://mh-gartengestaltung.de/userfiles/file/61519611760.pdfIn PDF document text
- http://partnercable.com/files/noful.pdfIn PDF document text
- http://arc-en-cielproduce.com/ckfinder/userfiles/files/pilodosimox.pdfIn PDF document text
- http://astmasme.com/userData/board/file/74531644610.pdfIn PDF document text
- https://posh.hr/files/roreririkidojes.pdfIn PDF document text
- http://toszegisuli.hu/userfiles/file/zawefasinuxoxi.pdfIn PDF document text
- http://thessalonikiflights.com/files/files/8739020277.pdfIn PDF document text
- https://jimsdelibrookhaven.com/demo/jimsdeli/admin/userfilesfile/sagefisunozakupogupaw.pdfIn PDF document text
- http://lawfirm.vn/MINH/user_files/file/nonebasepodojowinixidevu.pdfIn PDF document text
- http://skupka54.ru/upload/m/48031491668.pdfIn PDF document text
- http://stluciachamber.org/uploadedImages/contentImg/file/41624101631.pdfIn PDF document text
- http://abcbyspu.net/ckfinder/images_store/files/85294009802.pdfIn PDF document text
- http://neapol-m.ru/usr/file/jekexedoxiluko.pdfIn PDF document text
- http://master-vin.ru/files/file/pijiziles.pdfIn PDF document text
- http://tydafa.com/dafa/uploadfiles/20210904162930.pdfIn PDF document text
- http://360global.ca/userfiles/file/53884072832.pdfIn PDF document text
- https://reazfarah.com/ckfinder/userfiles/files/lonizagid.pdfIn PDF document text
- http://preiswerte-unterkunft-papenburg.de/mediapool/87218045132.pdfIn PDF document text
- http://condosworld.com/abisol1/userfiles/files/93074056145.pdfIn PDF document text
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/0jg5r8inf7eolgh0qv4ngdn5p2/86297644887.pdfIn PDF document text
- http://www.cpnatacao.pt/backoffice/ckfinder/userfiles/files/molabajukikasujazu.pdfIn PDF document text
- https://iveducentar.com/uploads/assets/file/jofeteburosux.pdfIn PDF document text
- http://misterholidaysanprisco.it/userfiles/files/10186423657.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=std+9+maths+textbook+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_off0000cd51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD51 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e568.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE568 | 10996 bytes |
SHA-256: 0318671b0a61e3bbb556caeaff103a38861547c1d39cb3ecbf452115d789680f |
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font_02_sfnt_off0000fecd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFECD | 17948 bytes |
SHA-256: 124ad81020d7d3b594ed2fa5605b1a1a5b8832d724d87598282cdfb6be5ae5c1 |
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