MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and functions as a link farm, with numerous URLs pointing to potentially compromised websites. These links likely serve to redirect users to phishing pages or download further malicious content, aligning with a spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://inwebjor.ru/uplcv?utm_term=high+fat+low+carb+diet+macros
- https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/044089906fadbf4f8a3df6322c8126ba/26167781723.pdf
- http://myphammonly.com/luutru/files/50020542599.pdf
- https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/abc6f4b3364bbfbcda17801482555d4f/mofuzagule.pdf
- http://puzynowska-kancelaria.com/userfiles/file/pakorax.pdf
- http://leebyunghun.kr/new/upload/board/files/gagasitozulotegiwe.pdf
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8c08d6b1a7---xawakemavigemufesok.pdf
- https://ph2020.org/FCKeditor/file/gewunipomirodumogaju.pdf
- http://cukiernia-waltar.pl/qcms/userfiles/file/tamiwakepef.pdf
- http://ingenermarket.ru/userfiles/78329397487.pdf
- https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/8a32395ace47e673cb1cb23115398626/20778007005.pdf
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077d9f06e51e---fudukopi.pdf
- http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/hqpuc3985df83e3ib8qjakr0g8/85048197927.pdf
- https://unicornproduction.gr/wp-content/plugins/super-forms/uploads/php/files/ffc1e9f306ec163f7934d0e562d1ce88/kawopo.pdf
- http://nano-vip.com/ckfinder/userfiles/files/zujonapeve.pdf
- https://vydavatelstvoklett.sk/userfiles/file/nutaruwadewud.pdf
- https://empezo.xyz/js/ckfinder/userfiles/files/41763110529.pdf
- http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/16081bbc385c16---nenajenetolesad.pdf
- http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d20b6b9dbc---99670665355.pdf
- https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/klcovr4ds78jn6dhiitp7n99ak/7807689501.pdf
- https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/cb447e0f0637901cf8397d8813b97ed6/rerido.pdf
- http://donauwell.at/userfiles/file/43941242101.pdf
- http://dirabrealtors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607adce2a7ed3---32148421977.pdf
- https://hojoairport.com/images/file/79777685512.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010c1e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C1E | 16792 bytes |
font_01_sfnt_off00012435.binca3a132290e68a6ae5e4069c9c3bf8522c8980f5b2873266b786fb649a5df68b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12435 | 11036 bytes |
font_02_sfnt_off00013db5.bin3686393d72563525dfac9c38dd6de407fb2cb551ee389b2223f7e58a803893a8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13DB5 | 16792 bytes |
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