MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS uploads and disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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://philabc.ru/uplcv?utm_term=vidmate+software+2021 PDF link annotation
- http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/161412f9db4e08---23703083665.pdfIn PDF document text
- http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161328560a2d0b---wigulotugilame.pdfIn PDF document text
- https://kolkatanagariksammelan.org/ckfinder/userfiles/files/xasedaluteg.pdfIn PDF document text
- http://torgoborud.org/images/file/98561258335.pdfIn PDF document text
- http://clairerolo.com/userfiles/file/46203491159.pdfIn PDF document text
- http://ayurveda-shiatsu-qigong-nice.com/upload/files/vakutimaxotu.pdfIn PDF document text
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/313b005d5f4afa6b91b4609bf8c1ad23/52247130358.pdfIn PDF document text
- http://aan.kz/ckfinder/userfiles/files/jadibik.pdfIn PDF document text
- https://komunalno-vrgorac.hr/files/68897719562.pdfIn PDF document text
- http://www.halpellet.hu/userfiles/files/buwexo.pdfIn PDF document text
- http://dobrasekacka.cz/userfiles/file/vekebiburamidodozekak.pdfIn PDF document text
- http://www.insight-assessment.com/ckfinder/userfiles/files/xikipobuwepekumi.pdfIn PDF document text
- http://vector-luczak.pl/new/fck_user_files/file/2828466533.pdfIn PDF document text
- http://intersonik.eu/upload/files/xaguwe.pdfIn PDF document text
- https://bisnismedsos.com/userfiles/file/31663672359.pdfIn PDF document text
- https://pmms-online.com/assets/file/90510629897.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/91401578219.pdfIn PDF document text
- http://djapm.com/userfiles/file/nosaxasesanupisov.pdfIn PDF document text
- http://shiinamotors.com/js/upload/files/22294781204.pdfIn PDF document text
- http://lacasedescaraibes.fr/file/fagawunixoz.pdfIn PDF document text
- http://wisdomtours.net/upload/file/kadutevu.pdfIn PDF document text
- https://www.koreayokogawa.com/ckfinder/userfiles/files/zagawaxafulufumeretewo.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_off0000e9a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9A9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000101bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101BB | 17280 bytes |
SHA-256: a256821b2fe7cafa7cac43d54bce3468d3704e7e5b3f8902f77be075e79f09f0 |
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font_02_sfnt_off00012ec3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EC3 | 10712 bytes |
SHA-256: ea3e39f7eb9eb588eaeafd71ed935fc95aafc7208541e89c9ff3ed780e885ebe |
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