MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to compromised WordPress upload storage and other disposable hosting sites, likely to download a secondary payload. The presence of embedded URLs and the nature of the heuristics suggest an attempt to trick users into downloading malware under the guise of legitimate software.
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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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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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://bertrandetgastineaudesigners.com/userfiles/file/33896258281.pdf In PDF document text
- http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/ukbiq1tcvbj1d165a8cb6audu3/xanuto.pdfIn PDF document text
- http://taiwan-casters.com/userfiles/file/397086561.pdfIn PDF document text
- https://vegastel.eu/components/com_mijoshop/opencart/image/data/files/mikaf.pdfIn PDF document text
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7dc3fb76d1---jaxamopidekevegote.pdfIn PDF document text
- https://lionkingbali.com/uploads/file/xapozowopesu.pdfIn PDF document text
- http://edu-family72.ru/content/images/uploads/file/15927928162.pdfIn PDF document text
- http://accu-chek-event.com/ckupload/files/60600713469.pdfIn PDF document text
- https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/b674e581b6c74f532c56a0ec07a75bf4/6671026549.pdfIn PDF document text
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/a6451dfb74f01ebf5d2716becc795371/juviwokik.pdfIn PDF document text
- http://epoxidice.ro/mm/file/verekudilavutusobivag.pdfIn PDF document text
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16092880b4eadc---nokarutidivobipafuvitut.pdfIn PDF document text
- http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/00d3c4522721fb57892c09e89465094b/14750387361.pdfIn PDF document text
- http://paillasse.hu/userfiles/file/bezizotajirugalazaz.pdfIn PDF document text
- https://rrr71.ru/upload_picture/pususexededowibagokuruji.pdfIn PDF document text
- https://lesura.net/userfiles/file/vowurazapogowororovi.pdfIn PDF document text
- https://erinmillssmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/h0hpmuogj6be3792d6t78f2ia2/34302525034.pdfIn PDF document text
- https://nsck-cykelmotion.dk/ckfinder/userfiles/files/85751581099.pdfIn PDF document text
- http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb01b5efab5---31246685245.pdfIn PDF document text
- http://kondicionery-dolgoprudny.ru/upload_picture/file/23436069517.pdfIn PDF document text
- http://lnianemarzenie.pl/userfiles/file/56842883309.pdfIn PDF document text
- http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/160858142491f5---10962672567.pdfIn PDF document text
- https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/j0vto74rtsacbpd04m7esa7kb6/87970806183.pdfIn PDF document text
- http://gzmzwl.com/Uploadfiles/files/88397137244.pdfIn PDF document text
- http://pvsystreports.com/wp-content/plugins/super-forms/uploads/php/files/faaamiu86h1ir68b2iimki6633/litukerali.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=cisco+anyconnect+secure+mobility+client+for+mac+vpn+downloadPDF 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_off0000d669.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD669 | 17100 bytes |
SHA-256: c3393a8a4ab3f9a6cbf4ce74891957c7bc94e797f8ad00e8af20829da2e28447 |
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font_01_sfnt_off00010332.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10332 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011b49.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B49 | 11320 bytes |
SHA-256: 566fd9f78008558bd1b147e18216d1d4caadf02050c0b92114a066fb099cba6f |
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