MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is often used to redirect users to malicious websites. The PDF also contains numerous links to compromised WordPress sites, suggesting a link farm or phishing campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for distributing malware or conducting phishing attacks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9914
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 https://archism.ru/uplcv?utm_term=college+essay+format+pdf PDF link annotation
- https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5f9015a479---jodelogeguzomenurerowap.pdfIn PDF document text
- http://c2r-auto.com/uploadfiles/file/2021052409063473499.pdfIn PDF document text
- https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/a3b902970a8c9a77c1c7ae9d1e75efe3/37308908953.pdfIn PDF document text
- https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b7f08d6dc9e---2864405251.pdfIn PDF document text
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/g8hjmqqm6mq12fna2da86ke52j/lafebekuvew.pdfIn PDF document text
- https://marathonlaval.com/userfiles/files/50795455336.pdfIn PDF document text
- http://fine-trading-knotwork.de/uploads/media/6846108734.pdfIn PDF document text
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c6ab79493a---pavulagibimup.pdfIn PDF document text
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608a7d46c5cd9---68816824820.pdfIn PDF document text
- http://bsinteriordesigner.com/userfiles/files/65193661420.pdfIn PDF document text
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16077e0bfc0d74---2509007050.pdfIn PDF document text
- https://webaprint.be/img/file/66519717336.pdfIn PDF document text
- https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/f81d532fd5adca0670a52ef2379f55ee/botowasavofeminufefezoda.pdfIn PDF document text
- http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/16082b27cbeee8---88452158286.pdfIn PDF document text
- https://fellowpeo.com/wp-content/plugins/super-forms/uploads/php/files/eec0044b1a0029601237c2254cad5a12/26667843284.pdfIn PDF document text
- http://rufullthrottle.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f289acc8db---zonigidifigidero.pdfIn PDF document text
- https://www.federatedlighting.com/wp-content/plugins/super-forms/uploads/php/files/f2b6860a17aaccd395a6736c56dfbbe7/magefijalono.pdfIn PDF document text
- https://fotokeramika.bg/userfiles/file/69040416289.pdfIn PDF document text
- https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd3251376e---12459091312.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dbf899a4afb---92597814272.pdfIn PDF document text
- http://alltechsro.cz/files/23506485080.pdfIn PDF document text
- http://wellfoto.cz/pictures/files/fixug.pdfIn PDF document text
- http://interfacetravels.com/app/webroot/js/ckfinder/userfiles/files/3616028494.pdfIn PDF document text
- https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/dcd13ec9c5253ff2a9fe1084799c3edd/58248404330.pdfIn PDF document text
- http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/1609896cd13161---21253251023.pdfIn PDF document text
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/161048ca28bfb9---8316550577.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_off0000c409.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC409 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000dc1b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC1B | 15880 bytes |
SHA-256: a54f36626417b8c7d5b36295d48ff1268feed4a69cebc1c5d7a91200f0dc5ee2 |
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font_02_sfnt_off00010495.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10495 | 10792 bytes |
SHA-256: 9c3eb3aa281d12e6239db6178ba7279b17f4a247ffe509e110e19ffd292ab305 |
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