MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs that function as a link farm, directing users to various external websites. Several heuristics indicate these links are associated with compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution scheme. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports the malicious nature of this document.
Machine Learning
- Nyx PDF Classifier malicious score 0.6141
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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External URI info PDF_URIPDF contains an external URL action
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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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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://queure.ru/uplcv?utm_term=fortnite+cheats+pc+download
- https://satuldelut.ro/ckfinder/userfiles/files/85205767064.pdf
- http://linza-market.ru/upload/files/zobudajekinarakanugari.pdf
- https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/ce9cb68cd5bc36510bbd592ffdbbdea1/1482612172.pdf
- http://0vote.com/ckfinder/files/40651898371.pdf
- https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/ag4d2vto3isk9qu5lnhv94e9kf/rigaxexeberevez.pdf
- https://yenicekentkaplicasi.com/userfiles/file/94412481662.pdf
- https://natyabio.com/uploadfiles/serawasuzubajuvekufa.pdf
- http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f1a29010c1---sotikejiwibefus.pdf
- https://tskrea.com/userfiles/file/vokeriwug.pdf
- http://miyagi.chi-kara.net/Upload/files/35284921065.pdf
- http://sbkf.org/files/files/58397015063.pdf
- https://kingdomdatesuae.com/userfiles/files/71003645116.pdf
- http://acrclubinversores.com/files/galeria/files/81465111960.pdf
- http://dtpokebar.com/uploads/files/67301394266.pdf
- http://fornacedelia.it/userfiles/files/fuxeximegibubuzuxidote.pdf
- http://weiken-rc.com/upload/files/zuzuxizifixegalidavi.pdf
- https://dtd.com.pk/ckfinder/userfiles/files/sezesudetonavivejakonosa.pdf
- https://springkasteelhuren.be/userfiles/file/67970543292.pdf
- http://studiosimonepantaleo.it/userfiles/files/mizuwesurene.pdf
- http://svatba-emi.com/uploads/pages/files/33264445811.pdf
- http://remont-m.com/userfiles/file/zatezepofuseromax.pdf
- http://www.louisefarmersmith.com/admin/ckeditor/ckfinder/userfiles/files/lepejumuligo.pdf
- https://luiginoiobbi.com/userfiles/file/rugeto.pdf
- http://kibunajcc.com/ckfinder/userfiles/files/tonuxesuvifudadobo.pdf
- https://cungcapthitdetuoi.com/app/webroot/files/images/pages/files/58930359230.pdf
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d979.bin00d840a0bf707809b41bb75e9818cefb87d8d6ec9eb5f00e988d61a0674b8f3f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD979 | 18808 bytes |
font_01_sfnt_off00010a28.bin76c8a98c272f0664b09db8b7606db920db8df0ac4439778e42e93f581caf76ee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A28 | 10672 bytes |
font_02_sfnt_off00012295.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12295 | 16792 bytes |
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