MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs that form a link farm, a common tactic for phishing and malware distribution. Heuristics indicate these links point to compromised CMS uploads and disposable hosting, suggesting a deliberate effort to obscure the final malicious destination. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9916
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://coretry.ru/uplcv?utm_term=gothere+sg+android+apk PDF link annotation
- https://tiemhoahaibara.com/data/dulieu/files/zigaxomezelat.pdfIn PDF document text
- http://maximaviajes.com/FCKfiles/file/kugujenizarowavikozoxupil.pdfIn PDF document text
- https://iwanbim.iwan.co/userfiles/files/fewowojema.pdfIn PDF document text
- https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/boej34rbim5er35kouk9tdiemf/midojeravufadonepes.pdfIn PDF document text
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/07e75e17c10e2148a4693f9f761eb384/85082391660.pdfIn PDF document text
- http://www.skk.com.hk/admin/ckfinder/userfiles/files/piralovemogidojev.pdfIn PDF document text
- http://hebammenglueck.de/ckfinder/userfiles/files/24116249265.pdfIn PDF document text
- https://foodthings.us/userfiles/file/xugarapus.pdfIn PDF document text
- http://aquitaine.annuaire-regional.com/ckfinder/userfiles/files/51856841538.pdfIn PDF document text
- https://ladulceseguros.ar/noticias/fckeditor/file/84251570832.pdfIn PDF document text
- http://denetimmusavirlik.com/userfiles/file/93517641537.pdfIn PDF document text
- http://fruitvita.com/files/files/14666255617.pdfIn PDF document text
- https://pilot-nav.socksnbows.com/ckfinder/userfiles/files/21833242072.pdfIn PDF document text
- http://vidol.nl/userfiles/file/6145676016.pdfIn PDF document text
- http://pure-chiral.com/upload/files/wepinutinarazun.pdfIn PDF document text
- http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614cd2020d472---62892304998.pdfIn PDF document text
- https://webshopplus.nl/app/webroot/files/userfiles/files/voxifikotes.pdfIn PDF document text
- https://pmms-online.com/assets/file/feliwogifedofotivagobadi.pdfIn PDF document text
- http://unseretochter.ch/images/file/kujal.pdfIn PDF document text
- http://www.findvoters.com/userfiles/file/66228796983.pdfIn PDF document text
- https://festival-bg.com/media/ckuploads/files/23508222191.pdfIn PDF document text
- http://hotelrefah4ter.ir/basefile/hotelrefah4terir/files/morisadikigexo.pdfIn PDF document text
- https://sakesushimn.com/userfiles/files/90644950726.pdfIn PDF document text
- https://braintreeclinics.com/app/webroot/img/files/jogivopazelowofesutumi.pdfIn PDF document text
- http://imaginove.eu/data/Files/43506193162.pdfIn PDF document text
- http://xn--ob0bjxt9h99icicrvkksa421cwwp7hiv4d6a.com/ckfinder/userfiles/files/nufasowetutidowi.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_off0000b62a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB62A | 10756 bytes |
SHA-256: e8f2db6b86a5bc5e041ce26283566aabd4c60626cc756dbd77e94e530491f761 |
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font_01_sfnt_off0000ceb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCEB5 | 17204 bytes |
SHA-256: 2e96a1ae13eca6caec1ec2b3c9865de9d9048fa74e05ac674a46493826ffbfe2 |
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font_02_sfnt_off0000f9b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9B7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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