MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript and numerous external URLs, many of which are hosted on disposable domains. Heuristics indicate it functions as a link farm and is flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. The presence of embedded JavaScript and external links suggests an attempt to download or redirect the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://infrive.ru/uplcv?utm_term=my+hero+academia+movie+watch+online PDF link annotation
- http://www.ramseier-appenzell.ch/elrada/js/ckfinder/userfiles/files/89366828628.pdfIn PDF document text
- http://gs-metals.com/filespath/files/20210904230702.pdfIn PDF document text
- http://www.aunay-sous-auneau.fr/ckfinder/userfiles/files/13348271280.pdfIn PDF document text
- https://www.sophrologue-nimes.fr/upload/news/files/gutuwesilajodokuworesurez.pdfIn PDF document text
- http://gamjagolla.com/uploads/files/13920702905.pdfIn PDF document text
- http://kolbiko.com/images/uploads/file/mebigen.pdfIn PDF document text
- http://allivecoat.com/userData/board/file/92285788448.pdfIn PDF document text
- https://gea99.com/ckfinder/userfiles/files/66844681197.pdfIn PDF document text
- http://pzhjintai.com/upload/files/48225024296.pdfIn PDF document text
- http://cameralehiep.com/hinhanh_fckeditor/file/pexano.pdfIn PDF document text
- http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613104cc9105f---wirolataxamumimefowisefol.pdfIn PDF document text
- https://buyafranchise.org/files/files/74730007016.pdfIn PDF document text
- https://sunnyrosesschool.com/userfiles/file/zolagulefuwe.pdfIn PDF document text
- http://anindecor.pl/files/file/15557788778.pdfIn PDF document text
- http://bensonlandscape.com/editorData/file/73709336846.pdfIn PDF document text
- http://lica-mpt.it/userfiles/files/datarodonazusaxiduwimilir.pdfIn PDF document text
- https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/1612ee666df8f7---tukaxamuj.pdfIn PDF document text
- http://mylodge-naoshima.com/dutidijoxotodefofuzofi.pdfIn PDF document text
- http://jurabos.nl/include/editor/file/2613936193.pdfIn PDF document text
- https://www.hasmow.com.au/application/third_party/ckfinder/userfiles/files/jejilotuduvonuxufovobe.pdfIn PDF document text
- http://ipllaser.in/uploads/73735143978.pdfIn PDF document text
- https://rasathantrananotech.com/ckfinder/userfiles/files/jebanemezep.pdfIn PDF document text
- https://underworldgear.com/upload/users/files/9921284756.pdfIn PDF document text
- http://www.accessibilite-salle-eau.com/ckfinder/userfiles/files/manawitufizawutimama.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_off0000dd03.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD03 | 10728 bytes |
SHA-256: 3a5ef1387ecddc827b2861b3049e92480f3ba1f92c3e78adeda53e49c4d516ab |
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font_01_sfnt_off0000f589.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF589 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010d9b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D9B | 18088 bytes |
SHA-256: 8b6415d4e3bc7f439165e9d4225ea9b4f91ff09ee8b663bbbafc140d7aaf97ab |
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