MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV detection as a phishing trojan. The presence of numerous embedded URLs, many pointing to potentially disposable domains, suggests a link farm or phishing campaign. The heuristic 'SE_URGENCY_LURE' indicates the document likely contains text designed to prompt immediate action, reinforcing the phishing pretext.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 6
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://jechrina.gr/FCKeditor/userimages/file/57208499141.pdf In PDF document text
- http://icltindia.in/userfiles/file/mijise.pdfIn PDF document text
- http://georgewongdesign.com/gwd/upload/files/46660721829.pdfIn PDF document text
- https://anmimar.com/royal/userfiles/file/6721449409.pdfIn PDF document text
- http://aucoindeshalles.fr/menu/file/92655452.pdfIn PDF document text
- http://www.jasfec.com/imgs/uploads/5340608088.pdfIn PDF document text
- https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/161422d21140d7---17083904090.pdfIn PDF document text
- http://zhongjiukeji.com/upload_fck/file/2021-9-5/20210905150704874175.pdfIn PDF document text
- http://rosniyom.com/userfiles/files/roketapajegazabaz.pdfIn PDF document text
- http://harissarantis.com/userfiles/files/89948413604.pdfIn PDF document text
- https://harshahometutors.com/uniformkontakt/userfiles/image/files/petabuwisatupufipazurudut.pdfIn PDF document text
- https://dnsbp.com/all4help/fckuserfiles/file/45901969412.pdfIn PDF document text
- http://hai-bi.com/uploads/files/202109070644056919.pdfIn PDF document text
- http://w.scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/93608534728.pdfIn PDF document text
- https://laser123.com/geektic/files/biduti.pdfIn PDF document text
- https://secolink.sk/userfiles/file/karevasavumelepezowotij.pdfIn PDF document text
- https://rosebankprimary.co.za/inc/ckfinder/userfiles/files/18509306185.pdfIn PDF document text
- https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/afd09d61cc0ae32e1775f10d0a50fa46/69416951268.pdfIn PDF document text
- https://transmar.biz/ckfinder/userfiles/files/pepojaxa.pdfIn PDF document text
- http://deurenhanger.nl/userfiles/file/62889926188.pdfIn PDF document text
- https://ijp2.com/contents/files/25557305174.pdfIn PDF document text
- http://zatuchlina.cz/upload/file/4175148607.pdfIn PDF document text
- https://rheinfurth.de/userfiles/file/84976398056.pdfIn PDF document text
- http://tokyosushilohaus.com/uploads/files/totobilukuvemopavovax.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=fonts+emoji+and+font+keyboard+apkPDF 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_off0000eb38.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB38 | 11064 bytes |
SHA-256: bef81aa7db807925948994f5dfe8c98b8fd29339d48bb86fa4f6a285840e8dfe |
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font_01_sfnt_off000104bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104BF | 19152 bytes |
SHA-256: 8a66508914826dc35539e99618513e550b361ffe5611572561bc2607035aa326 |
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font_02_sfnt_off0001373b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1373B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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