MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. The presence of a link farm with numerous distinct hosts, including the suspicious 'bugskin.org', suggests a phishing or malware distribution campaign. The embedded URLs and the PDF structure point towards an attempt to trick users into downloading potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 5
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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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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://bugskin.org/userfiles/file/tisugat.pdf In PDF document text
- https://euro-m.si/web/dokumenti/file/bewanep.pdfIn PDF document text
- https://terracell.info/images/file/232537571.pdfIn PDF document text
- http://internet-trade.eu/UserFiles/file/38590813113.pdfIn PDF document text
- https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613b31a5af276---9342175787.pdfIn PDF document text
- http://slhospital.com/upload/fckeditor/file/48692560060.pdfIn PDF document text
- https://krossi.ru/images/content/files/46809029426.pdfIn PDF document text
- https://unovosti.tv/ckfinder/userfiles/files/66924841831.pdfIn PDF document text
- http://sakaryakasaplarodasi.org/userfiles/file/pajusejuwinivadesixono.pdfIn PDF document text
- http://redskap.ru/userfiles/file/rosekobogitenagewawu.pdfIn PDF document text
- http://tcihk.com/userfiles/ponopabolodoterixiw.pdfIn PDF document text
- http://asude.istanbul/ck_images/files/punefofedi.pdfIn PDF document text
- http://hongphuc.vn/userfiles/file/14612929197.pdfIn PDF document text
- https://cuacuonbentre.com/upload/files/didoguberutalu.pdfIn PDF document text
- http://carzip.biz/files/uploads/files/16363096402.pdfIn PDF document text
- https://www.singaporemedicalclinic.com/ckfinder/userfiles/files/vagulepizoxulari.pdfIn PDF document text
- https://ywint.com/ckfinder/userfiles/files/1631884811.pdfIn PDF document text
- http://www.tractortools.cz/ckfinder/userfiles/files/34726142329.pdfIn PDF document text
- https://svarovanijelinek.cz/ckfinder/userfiles/files/70759394844.pdfIn PDF document text
- http://zehanbiopharma.com/upload/files/94740332658.pdfIn PDF document text
- https://alshamiltrading.com/alshamilfiles/file/rijukevutunulo.pdfIn PDF document text
- http://lnaixi.com/userfiles/file/20210916170227_1883835876.pdfIn PDF document text
- http://smwiarus.pl/ckfinder/userfiles/files/puxelage.pdfIn PDF document text
- http://audiencefertilization.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/92238783454.pdfIn PDF document text
- https://myparrotfood.com/user_files/files/70174325842.pdfIn PDF document text
- https://eletmodguru.hu/files/files/zafidegapof.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=download+wear+os+appPDF 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_off0000db24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB24 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f336.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF336 | 16996 bytes |
SHA-256: 0ed53662692997e6bd1609935ffbd72351de704e9dd1aa7f74e43263f0751662 |
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font_02_sfnt_off00011f2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F2E | 10280 bytes |
SHA-256: 44a0e1139ddb6a9c71ed1f8f5f5f94f6de36cceb91bbfdb3926f218d2df59a39 |
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