MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple links pointing to potentially compromised websites and disposable hosting, suggesting a phishing or malware distribution attempt. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics indicates a deliberate effort to obscure the true destination or leverage compromised infrastructure. The ML classifier and ClamAV detection strongly support a malicious classification, likely related to phishing lures.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
Heuristics 8
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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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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://huntic.ru/uplcv?utm_term=project+closure+checklist+excel+template
- http://firegallery.ru/img/upload/dizizufawifatonu.pdf
- http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/db2018a995df4ffd0121bf2427cc9a73/sarafavuxexuzudulud.pdf
- http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090ff0b18342---72225939003.pdf
- http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f45e70e560---23452914008.pdf
- http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/65fb6a216c604e5c6025b7c05af81c3f/48531078721.pdf
- http://mdbim.pl/ubezpiecz/obrazy/file/37973592009.pdf
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a21112c60ee---walekurakubozekefori.pdf
- http://www.makattakasinti.com/wp-content/plugins/formcraft/file-upload/server/content/files/160815b543ab95---fonakurafikaxoda.pdf
- https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/7c5db099eaabe2a3ea1259749da4c796/zarajugumegasutafabuwosiw.pdf
- http://sola-brothers.com/userfiles/file/99161490378.pdf
- https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/861bc82e4005500b0eb1142a742f7f32/69301049674.pdf
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bf8a280f460---68978026724.pdf
- https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cb3144b008---sidodatupigepuvanuroduxil.pdf
- http://olsztyntransportmedyczny.pl/userfiles/file/11554820743.pdf
- http://fobosgrunt.ru/files/ckfinder/files/94818406252.pdf
- https://businesslife.com/content/file/41340301989.pdf
- http://cattaneoarchitetti.it/userfiles/files/25514251816.pdf
- https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/6bd8d64b0b8141163029a897f118073e/65351943916.pdf
- https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/9ce8568e52073b9e27b5cd3346b8aa24/nabulidifonodexo.pdf
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609bdf501ae39---5791729294.pdf
- https://pirkitpadangas.lt/ckfinder/userfiles/files/21375475003.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- 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_off0000f4b9.bin5be4517d95b49cf2c718a92296355e15667ffdb11f6696e5a4ce1011f2ed04d1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4B9 | 10960 bytes |
font_01_sfnt_off00010e2e.bin29398785aca2d506cc693d8172fe951bf66591a25a7e3e83f12f486c76dc2a10 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E2E | 17168 bytes |
font_02_sfnt_off00013ae0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13AE0 | 16792 bytes |
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