MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and a significant number of external URIs, many of which point to compromised CMS uploads or disposable hosting, forming a link farm. The presence of embedded JavaScript suggests an attempt to execute malicious code, likely to redirect the user to phishing or malware download sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://drafthe.ru/uplcv?utm_term=cinema+online+coming+soon PDF link annotation
- http://daming-school.com/userfiles/file/16020630195.pdfIn PDF document text
- https://sleepthai.com/piceditor/file/vigidudanobatugadofikub.pdfIn PDF document text
- https://silatur.com/js/ckfinder/userfiles/files/fakijikapuziza.pdfIn PDF document text
- https://cylinder96.ru/admin/ckfinder/userfiles/files/jemesuko.pdfIn PDF document text
- http://www.css-jp.com/upfile/files/2021/09/07/9276777653.pdfIn PDF document text
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16137d7f20c178---jovazigumedopafivawuzom.pdfIn PDF document text
- http://gptools.net/userfiles/file/80269288781.pdfIn PDF document text
- http://hiredriver.com/uploads/assets/files/nalimokop.pdfIn PDF document text
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137da9ad50fc---2653776184.pdfIn PDF document text
- https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16137c64f57847---bakalegulizamefixelegewiz.pdfIn PDF document text
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/688b3aaac06e3ca7fb69e1460578a9dc/76578124698.pdfIn PDF document text
- https://lexcyberia.com/userfiles/files/naxamuwobajad.pdfIn PDF document text
- http://foodzipo.com/uploads/userfiles/files/mevabowubevekis.pdfIn PDF document text
- http://ngnjl.com/userfiles/files/22641955337.pdfIn PDF document text
- https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/d1a121e2dea70bd6aa0a845c052a9b8f/6334995641.pdfIn PDF document text
- https://bienenaktuell.com/sites/bienenaktuell.com/files/file/74329727742.pdfIn PDF document text
- http://huichem.com/ckfinder/userfiles/files/69452383832.pdfIn PDF document text
- http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/161352e6e884fa---41919809288.pdfIn PDF document text
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613d2818d6c9a---tofenorita.pdfIn PDF document text
- http://chelseafoodmart.com/uploads/files/31311572916.pdfIn PDF document text
- https://mimpishio1.com/contents/files/71413228132.pdfIn PDF document text
- http://www.aceitunasdelguadalhorce.es/ckfinder/userfiles/files/25983946806.pdfIn PDF document text
- http://goforthegreengolfpools.com/userfiles/file/fetalajasoduf.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_off0000d631.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD631 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ee48.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE48 | 10404 bytes |
SHA-256: 397f8e116b13c7e5befba7b994fbaa5c1ac65eda205d51a74db70a80abb66277 |
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font_02_sfnt_off000105ce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105CE | 16752 bytes |
SHA-256: 4686ced0c8efc917c4125f57acca366593df82c6b3eaf5fc28826863967bbefa |
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