MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple external URIs, many of which point to compromised or disposable hosting. The heuristic 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggest a malicious intent to redirect users to potentially harmful sites. The embedded JavaScript, though not fully detailed, is a common vector for further exploitation or redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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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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://keletunderground.hu/images/uploaded_pics/file/lezimevesokonulusiru.pdf In PDF document text
- http://s-privod.ru/userfiles/file/tiguxivunomozikinaruxij.pdfIn PDF document text
- http://www.papelerialapiceros.es/ckfinder/userfiles/files/mufudiki.pdfIn PDF document text
- http://ranchobg.com/img/file/doselejutogisiwozasagek.pdfIn PDF document text
- http://760_709737661.mildmedia-dev.eu/uploads/userfiles/files/20785541196.pdfIn PDF document text
- http://zhouzhuanx.com/v15/Upload/file/20219282017257757.pdfIn PDF document text
- http://thaide.org/userfiles/file/faxumedofegakukita.pdfIn PDF document text
- https://zzwgjx.com/d/files/lakovijazotajizo.pdfIn PDF document text
- http://phdpecs.hu/userfiles/files/xufurolevukojubilu.pdfIn PDF document text
- https://rainwater.cc/images/uploads/files/xesizudezixupavowibu.pdfIn PDF document text
- https://www.scmsgroup.org/ckfinder/userfiles/files/gavanefufow.pdfIn PDF document text
- https://luminex.pl/upload/file/ledoniwipuxim.pdfIn PDF document text
- http://massarentearchitettura.com/userfiles/files/58692304858.pdfIn PDF document text
- http://www.stsmcc.org/www/js/ckfinder/userfiles/files/dasasufudu.pdfIn PDF document text
- https://angelsforwarriors.org/userfiles/files/35866195871.pdfIn PDF document text
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613a96aa2b287---zekisatadifewiwiwu.pdfIn PDF document text
- https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/ea0c1f98dd47189e2b22f0215468cffd/xowufutaxosuwib.pdfIn PDF document text
- http://dolphinegypt.net/userfiles/file/miwekufozerurorujaferov.pdfIn PDF document text
- https://infoenergie-loire.org/userfiles/file/67326870176.pdfIn PDF document text
- https://barrierball.cl/ckfinder/userfiles/files/wikobakixijazafegitazagel.pdfIn PDF document text
- http://azco.friend-match.com/upload/files/jedabelu.pdfIn PDF document text
- http://tangiahoang.vn/Images_upload/files/64212053372.pdfIn PDF document text
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/0a1e9b02410538464905504d3b99e946/xevefinuvajufidunuvijuba.pdfIn PDF document text
- http://gsprojekt.eu/userfiles/files/54883727799.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=why+is+personal+appearance+important+in+the+workplacePDF 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://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_off0000f940.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF940 | 10924 bytes |
SHA-256: 6375198f909bdb53a9dee777410848f9747199bbca7931d33e7a461eeaacdf8b |
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font_01_sfnt_off00011274.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11274 | 18532 bytes |
SHA-256: dbe98f53973493acf78091056128eae58e5f97ce5c3d32631d63a89e0edec69e |
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font_02_sfnt_off00014267.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14267 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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