MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to disposable domains and are part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to trick users into downloading malware via the deceptive links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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 http://www.stsmcc.org/www/js/ckfinder/userfiles/files/32756790520.pdf In PDF document text
- http://burbank.kopanramen.com/uploads/files/zobukusiku.pdfIn PDF document text
- https://jecoexports.com/ckfinder/userfiles/files/35959120937.pdfIn PDF document text
- http://goodwill.pl/userfiles/file/32209643384.pdfIn PDF document text
- http://everbeenmagnet.com/js/upfiles/files/41863858053.pdfIn PDF document text
- http://midesignvn.com/uploads/files/kidizitetezofipupifez.pdfIn PDF document text
- https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613210257a772---pumivakuziwibivuvaxota.pdfIn PDF document text
- https://ryokanclub.com/FileData/ckfinder/files/20210909_14C8CE0D02E1B62E.pdfIn PDF document text
- http://willajarmar.pl/userfiles/file/8003116579.pdfIn PDF document text
- http://fabriquetextil.com/js/new/fckeditor/userfiles/file/94208664448.pdfIn PDF document text
- http://bellina.pl/userfiles/file/46183922226.pdfIn PDF document text
- http://asfalon.com/__files/file/pirifamobem.pdfIn PDF document text
- http://vititanon.com/user_img/files/16357484276.pdfIn PDF document text
- https://realxenon.ru/uploads/files/47597825430.pdfIn PDF document text
- https://biomedchita.ru/imeg_master/file/581495836.pdfIn PDF document text
- http://ventima.ru/userfiles/file/gifagab.pdfIn PDF document text
- https://onthespothousing.com/userfiles/file/57742261617.pdfIn PDF document text
- http://cbafjvn.com/uploads/userfiles/file/madezopomuziwogopunuf.pdfIn PDF document text
- http://bienchidan.org/uploads/files/67713701205.pdfIn PDF document text
- http://cualuoiskydoor.com/webroot/img/files/31561259161.pdfIn PDF document text
- https://ariaparvaz.com/basefile/ariaparvazcom/files/67734812407.pdfIn PDF document text
- http://anais.terminarz.online/kosmetyczka/krakow/files/29321698165.pdfIn PDF document text
- http://grandinhr.eu/images/user/file/9605738848.pdfIn PDF document text
- http://hart-metale.pl/gimnazjum/userfiles/file/91753791562.pdfIn PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613662a9eb95f---busoveramexas.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=fake+call+apk+proPDF 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_off0000cab5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCAB5 | 9972 bytes |
SHA-256: f9514944b685277b38c435f3ca7ea5c2c23b35730abb8a1eb7823f39f3cdef34 |
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font_01_sfnt_off0000e0e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0E9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f8fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8FB | 20692 bytes |
SHA-256: 61da8638c846da1fa6991246dd9b1fbb8611bb7c8899ae4ab0bf9f49e4f1dbde |
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