MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a QR-code lure. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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 https://drafthe.ru/uplcv?utm_term=come+trasformare+un+pdf+in+word+gratis+online PDF link annotation
- http://satit.nrru.ac.th/satit/_Adminis/ckfinder/userfiles/files/80953461148.pdfIn PDF document text
- https://guclupin.com/calisma2/files/uploads/54211845957.pdfIn PDF document text
- https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/446e3c13a236656ad7856d1e7665eac3/vomidimuzomomunerilivetek.pdfIn PDF document text
- http://alexanderkanevskyartistbiography.com/clientMedia/file/digenosupakesoz.pdfIn PDF document text
- http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f48a6baec5---81218796907.pdfIn PDF document text
- https://anmimar.com/royal/userfiles/file/35221932600.pdfIn PDF document text
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dc15038c0f9---nibewiv.pdfIn PDF document text
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/161255ce060d87---disugaxigugosinimazub.pdfIn PDF document text
- https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/psa3ocqulqauh4stup24qoct05/75678476459.pdfIn PDF document text
- http://premo.at/userfiles/file/82287161753.pdfIn PDF document text
- https://xn--lenachatka-57b.pl/uploaded/file/3043169800.pdfIn PDF document text
- http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16118cb62992a1---zorewenekaresoreva.pdfIn PDF document text
- https://capitaleny.com/wp-content/plugins/super-forms/uploads/php/files/2bdcbbc99451e327e3bc6cc86bfcd6b7/gilijisafevuzor.pdfIn PDF document text
- https://iwnta.com/userfiles/file/lamuz.pdfIn PDF document text
- https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/8132fc737099664e8d4f37e025b907e8/bobolezutu.pdfIn PDF document text
- http://delawaretravelmedicine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609435f72c17e---diwudalixepegubiwanukuwid.pdfIn PDF document text
- https://floridainvestment.cz/files/file/petadikiwuvu.pdfIn PDF document text
- http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/161191e1c9813f---60606030276.pdfIn PDF document text
- https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/1ef9a0295a6cf9ae636478c06f9dcd85/64343537874.pdfIn PDF document text
- http://wuxihemei.com/ckfinder/userfiles/files/20210706_014945.pdfIn PDF document text
- http://rheumatology.institute/upload/content/file/71080569853.pdfIn PDF document text
- http://www.darvidproperty.com/news/file/wuzatugesevefamefizon.pdfIn PDF document text
- http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161161c8ca945e---kujekeravolije.pdfIn PDF document text
- https://comfortinnbarrie.com/phpsites/vertical_living/uploads/file/ruwebutazepividibebimumaz.pdfIn PDF document text
- 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_off0000f0ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0ED | 11056 bytes |
SHA-256: cf836de4515becb6a7cfe6ede630801682d7da2857aeeb987bd77ef57bde330c |
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font_01_sfnt_off00010a85.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A85 | 19496 bytes |
SHA-256: 225dc9d15574c64e68c70fbe157cf33ffb11741a373d5529f1bcdf3783e5643b |
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font_02_sfnt_off00013d97.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D97 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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