MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded JavaScript and numerous external URIs, many of which are identified as part of a link farm on disposable hosting or compromised CMS uploads. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 7
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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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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://crewmak.ru/uplcv?utm_term=7+iron+ball+placement PDF link annotation
- https://qualityroofinnandsuites.com/nbloom/fckuploads/file/gebuwafoki.pdfIn PDF document text
- https://tp-pos.com/uploads/image/files/70932275585.pdfIn PDF document text
- http://rlangkhan.com/upload/userfiles/files/77559884523.pdfIn PDF document text
- http://djarkitek.com/temp/vinney/HTML/userfiles/file/63905504979.pdfIn PDF document text
- https://evrenmentese.com/upload/ckfinder/files/25812069167.pdfIn PDF document text
- http://www.protectakoteasia.com/ckfinder/userfiles/files/tapiwudevetutewegadidoz.pdfIn PDF document text
- http://hotelbasantresidency.com/uploads/tugosegataxo.pdfIn PDF document text
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/e75a39b65d8605c13ed30d3f0b3bdf4c/fagudiguf.pdfIn PDF document text
- https://lesartsdansmonjardin.com/userfiles/file/20210904115538.pdfIn PDF document text
- https://villadelauca.com/userfiles/file/62835918906.pdfIn PDF document text
- https://zenithservicos.com/userfiles/files/31511620746.pdfIn PDF document text
- http://www.likoda.com.tw/upload/ckimg/files/tuzasi.pdfIn PDF document text
- https://bdata.vn/upload/files/xupedilozegakadusiwugosoz.pdfIn PDF document text
- http://serextion2006.com/js/upload/files/kitibuvosepuzabaf.pdfIn PDF document text
- https://detskeihriska.eu/ckfinder/userfiles/files/76187231988.pdfIn PDF document text
- https://htcpost.vn/vietpost.vn/img_content/file/6346886226.pdfIn PDF document text
- http://mtcongnghiepxanh.com/upload/fckimagesfile/15309201305.pdfIn PDF document text
- https://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/42e1sko2k5j0s6lf1e3bjj0ueo/80836974202.pdfIn PDF document text
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/161312ea539ee0---ralidoburavus.pdfIn PDF document text
- http://tvsatkrosno.pl/userfiles/file/26210839142.pdfIn PDF document text
- http://atya.eu/files/file/rekitunimagi.pdfIn PDF document text
- https://branchennachweis.eu/userfiles/file/xadejorerabunijenewe.pdfIn PDF document text
- http://automyjka.pl/automyjka.pl/userfiles/file/fulireta.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_off0000ed7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED7D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010594.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10594 | 10460 bytes |
SHA-256: 0aeb6ba08801008ad2a3c80dda9c34015efcb4c04001a9ba4c7ec0c20b0301b1 |
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font_02_sfnt_off00011d0c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D0C | 17716 bytes |
SHA-256: f7bee8750fca512257d90efdad3e0cd88fb931081f2153468d1a99074c35cfdd |
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