MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous URLs, many of which are part of a link farm pointing to potentially compromised websites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common technique for executing malicious actions within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://cructi.ru/uplcv?utm_term=the+50th+law+pdf+free PDF link annotation
- http://schokoladenbrunnen.de/idata/kolodilosovepenibezujasud.pdfIn PDF document text
- http://www.park-seversk.ru/other/js/ckfinder/userfiles/files/lulasojisur.pdfIn PDF document text
- https://cahayamimpi1.com/contents/files/vapux.pdfIn PDF document text
- http://backupcenters.com/userfiles/file/bosajuvefajigusotuluxawi.pdfIn PDF document text
- https://barcelonamedicalcenter.com/files/galeria/files/63806412806.pdfIn PDF document text
- https://vinatech.com/userfiles/file/zixamubozekafej.pdfIn PDF document text
- http://annabarons.com/files/files/fexeru.pdfIn PDF document text
- https://ristovski.mk/public_html/upload/userfiles/file/sedavitoliduvumew.pdfIn PDF document text
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138ac4c05c84---mojuvufinajasol.pdfIn PDF document text
- https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/941c6fce576e75b54c9a0a138d2e7fa9/78887257444.pdfIn PDF document text
- http://cephedanismani.com/images/pages/file/ponevopofinat.pdfIn PDF document text
- http://nacyc.jp/Upload/file/80743534549.pdfIn PDF document text
- https://thaiahpa.com/flash/files/92095222981.pdfIn PDF document text
- http://slmj8.com/data/userfiles/files/99848899868.pdfIn PDF document text
- http://xn--j1aii.su/userfiles/file/77848952214.pdfIn PDF document text
- https://mimpishio2.net/contents/files/fowitotowejavavuxilod.pdfIn PDF document text
- http://wccflooring.com/userfiles/files/64317916458.pdfIn PDF document text
- https://ltes.tw-goods.com/UserFiles/files/vevalelu.pdfIn PDF document text
- http://zonwering-belgie.com/ckfinder/userfiles/files/36657193329.pdfIn PDF document text
- http://portaldo.eu/contenuti/upload/file/74950906118.pdfIn PDF document text
- http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16139bcc9b4196---20726962826.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_off0000c4f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC4F1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000dd08.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD08 | 10416 bytes |
SHA-256: 075d5d4aeced71a3e56d870abc4ea35530b7074e6ff1481893d95c903845c263 |
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font_02_sfnt_off0000f4e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4E3 | 16536 bytes |
SHA-256: 0be89cfa82df1f014d7c4418a34089c3bdb92b1ec238d91fb6b76bee063ef36d |
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