MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs pointing to compromised WordPress sites, which act as a link farm. These links redirect to other PDF files, suggesting a multi-stage download or redirection chain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://synerhu.ru/uplcv?utm_term=texting+story+apk+download PDF link annotation
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/1614191e1b043b---75424666389.pdfIn PDF document text
- https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/fae0e7a9f787f9361b3c0466f8d0c12b/8792569133.pdfIn PDF document text
- https://euroquimicadistribucion.com/zabaleta/data/imagenes_contenidos/file/18705097141.pdfIn PDF document text
- http://arisutour.com/ckupload/files/75226215270.pdfIn PDF document text
- http://jevades.com/aircraft/fckimages/file/19495849096.pdfIn PDF document text
- https://astefin.ro/ckfinder/userfiles/files/jukebasemunidolikinimob.pdfIn PDF document text
- https://romalasergroup.com/userfiles/files/9923809588.pdfIn PDF document text
- http://abbeloosschinkels.be/userfiles/file/61085485196.pdfIn PDF document text
- https://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/5718881565.pdfIn PDF document text
- http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/161395c079cd7c---97976135234.pdfIn PDF document text
- https://peintures-descours.fr/fichier/files/vuwaxabanuzifamoli.pdfIn PDF document text
- https://derechosenred.org/aym_image/files/gumas.pdfIn PDF document text
- https://intersat.lv/files/file/wivigunikalufegivom.pdfIn PDF document text
- http://borik.customreal.sk/data/files/rugigumapifi.pdfIn PDF document text
- https://fabriziochessa.it/userfiles/file/naxarajefijufanudepopax.pdfIn PDF document text
- http://associazionemillesogni.it/userfiles/files/70274245254.pdfIn PDF document text
- http://albertopizzetti.it/userfiles/files/95889419867.pdfIn PDF document text
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/eb44bbaac4edff25694478393effc92f/jumakolomugesif.pdfIn PDF document text
- http://anhhieu.vn/hinhanh/file/53652936684.pdfIn PDF document text
- https://zifu-tech.com/app/webroot/userfiles/files/nofonevufupux.pdfIn PDF document text
- http://sintniklaas.kinderopvangpimpeloentje.be/ckfinder/userfiles/files/23238367797.pdfIn PDF document text
- http://sonnenheizungen.ch/fckeditor/editor/images/file/xewimimatofiropixura.pdfIn PDF document text
- http://keystoparadise.com/userfiles/files/matoxowotowasale.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_off0000e37a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE37A | 17480 bytes |
SHA-256: f6d2f80a48e06f228f0a9e4f884a86d10152ff2a25da5acf6d4236601342ac27 |
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font_01_sfnt_off00010fce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FCE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000127e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127E5 | 10924 bytes |
SHA-256: 731053eac3c04157927288a6b44b3ed047fc32f83bcdd62cbc2833a849c419e8 |
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