MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of links, many pointing to compromised WordPress sites hosting other PDFs. This behaviour is indicative of a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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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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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://haps.company/wp-content/plugins/super-forms/uploads/php/files/kd0rt7eh69ea3q6t8hq9u35rl3/13235590527.pdf In PDF document text
- https://glowskincare.net/wp-content/plugins/super-forms/uploads/php/files/e937616936b17fa5fbf3c4ad264bfa57/sevafezotofuxawofanezi.pdfIn PDF document text
- http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609a87fe1334d---67329400951.pdfIn PDF document text
- http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d40668c8b65---bitozer.pdfIn PDF document text
- http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/rpkskkl4afiq2cpbd6g9jvgat0/duwujobebetili.pdfIn PDF document text
- https://slide-bearing.com/d/files/30598857049.pdfIn PDF document text
- http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160be9a5bae28d---lukulorejuferigu.pdfIn PDF document text
- http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/rsr51kd1v40dlofk7dr2uffm84/97929281875.pdfIn PDF document text
- http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/160b803a7a53a2---peborigivilujitekiwufolar.pdfIn PDF document text
- http://naasschoolofmotoring.ie/fckeditor/userfiles/file/37143518680.pdfIn PDF document text
- https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/48dcc294e6eef18d968606f7eb940256/56364865764.pdfIn PDF document text
- https://www.tangelo.no/wp-content/plugins/formcraft/file-upload/server/content/files/160949d30481f0---14601470334.pdfIn PDF document text
- http://studiovalentini.eu/userfiles/files/jiweduzesenoriwupimadasim.pdfIn PDF document text
- https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/b07b76fdeaf2925b58322767b1454953/56535570614.pdfIn PDF document text
- https://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/da9a1e165dad4f65b270207b96e4bf0f/5366122603.pdfIn PDF document text
- https://spcinternational.in/ckfinder/userfiles/files/nelinilavesawi.pdfIn PDF document text
- http://theopenhouseclub.com/wp-content/plugins/super-forms/uploads/php/files/065ad8b0e51b673b239458be21bec66f/59496580765.pdfIn PDF document text
- https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/55jfvhcdup3c11af78i7iqlm4d/zimipawaburo.pdfIn PDF document text
- http://aristosaigonhotel.vn/uploads/files/54322976113.pdfIn PDF document text
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16074390bdb700---81287368485.pdfIn PDF document text
- http://resetimpianti.it/reset/public/file/xegilivamaregitefer.pdfIn PDF document text
- http://orderkai.com/uploads/files/71267356684.pdfIn PDF document text
- http://michelesherrinlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lopewifakedumunaluzuma.pdfIn PDF document text
- http://austria-ex.com/images/blog//file/28683903045.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=how+to+edit+a+pdf+document+in+adobe+readerPDF 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_off0000e02a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE02A | 17488 bytes |
SHA-256: 66fe013d3163169c78d453676805fcdb9b1c479991bded6465621198f516aa60 |
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font_01_sfnt_off00010d47.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D47 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001255e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1255E | 10884 bytes |
SHA-256: 8e86e284059252e9311a6743086503e7798301b62426679b9e56aca594ddd757 |
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