MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, including one identified as a link farm on disposable hosting. The presence of a 'download button' heuristic further suggests a malicious intent to trick the user into downloading a payload. The ML classifier and ClamAV detection strongly indicate maliciousness, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://yellowmangocafe.com/userfiles/file/25779409208.pdf In PDF document text
- https://mmtours.si/uploads/71336506158.pdfIn PDF document text
- http://mwbright.com/upload_fck/file/2021-9-14/20210914090854330919.pdfIn PDF document text
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/50a0e293dc6c32ea4de72736f5a46b1c/96951204621.pdfIn PDF document text
- http://partnerplus30.ru/images/fornews/files/jinaz.pdfIn PDF document text
- https://samsunyapi.com/userfiles/files/ropedisufi.pdfIn PDF document text
- https://textmakareknutsson.se/upload/image/nilewo.pdfIn PDF document text
- http://kuwaited.com/cote_dor_import/admin/ckfinder/userfiles/files/kazitagevigopujofidif.pdfIn PDF document text
- https://safe-international.com/userfiles/file/zamasama.pdfIn PDF document text
- http://www.keizerco.nl/userFiles/file/98018339945.pdfIn PDF document text
- http://melodylavernebettencourt.com/media/file/68709051367.pdfIn PDF document text
- http://fairfresh.net/assets/admin/ckeditorimage/files/jopirefevunixoj.pdfIn PDF document text
- http://k-souz.com/userfiles/file/pomupakifobolonezafize.pdfIn PDF document text
- http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bc4aa2008e---wodez.pdfIn PDF document text
- https://vaynhanh365.net/contents/files/56673564369.pdfIn PDF document text
- https://eqonetech.com/upload/userfiles/files/15153579526.pdfIn PDF document text
- https://www.barefoothoa.com/webroot/js/ckfinder/userfiles/files/66119165571.pdfIn PDF document text
- http://pphjako.pl/userfiles/file/pepixamopikimadefot.pdfIn PDF document text
- https://appvid.eus/userfiles/files/56625723143.pdfIn PDF document text
- http://tmtechvn.com/webroot/img/files/tebaxum.pdfIn PDF document text
- https://cakesandcupcakes.net/userfiles/files/15199894944.pdfIn PDF document text
- http://njbeihang.com/uploadfile/file///2021090415544724.pdfIn PDF document text
- http://supair-lux.hu/ckfinder/userfiles/files/39476614281.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=diploma+1st+year+physics+book+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_off0000e487.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE487 | 11180 bytes |
SHA-256: 5eb55ffa960184cb6aa35f104cef22754292099bd73d38907d1dba075e8065fb |
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font_01_sfnt_off0000fe8e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE8E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000116a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116A0 | 18176 bytes |
SHA-256: f16e41239ad8ce0597a2d96ada619be4a1baae7290587bd22a4c89c828b0b4fb |
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