MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection as a phishing trojan. It contains a link farm pointing to numerous URLs, many hosted on compromised CMS uploads, suggesting an attempt to obscure the final destination and evade detection. The presence of external URIs and a link farm indicates a likely phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 6
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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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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 http://ever-pioneer.com/upload/files/vasaxepebajutufavukox.pdf
- http://www.s-prom.si/fileupload/file/nifarogufozakideb.pdf
- http://belean.pl/userfiles/file/16255891465.pdf
- http://sunmoon-glory.com/web/upload/files/42933233250.pdf
- https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/7093cb14ef4d7b5ede7525a3165016e9/71074650453.pdf
- http://southerncross-ex.com/images/blog/file/54581088850.pdf
- http://a-b-i-s.net/layout/bilder/file/38642673490.pdf
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132517a3d767---robil.pdf
- https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/f32701c447de3be1eed6d00552319f0a/begoxepazilexifo.pdf
- http://merwepizza.com/upload/file/jofitususigi.pdf
- http://zonazero.es/userfiles/file/tevonanebup.pdf
- http://eminenceinc.com/userfiles/file/14994786409.pdf
- https://eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/gukilizebazovevotute.pdf
- http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613719f9f253c---48161592657.pdf
- https://pearproperties.in/userfiles/file/biruvadunagegijob.pdf
- https://speculatio.in/ci/userfiles/files/21590079362.pdf
- http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/16133d787c5c62---24549713443.pdf
- http://faradbox.pl/files/file/53003561820.pdf
- https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613582e780260---74502783632.pdf
- http://davidhammerstein.org/ckfinder/userfiles/files/zijudupuzupika.pdf
- https://artasedanasingaraja.com/uploadfck/file/xagetig.pdf
- https://gertiesbloomers.com/kousumi/nulook/upload/fckimages/file/folaxaworasasebifo.pdf
- http://pevak.info/UserFiles/File/17751164484.pdf
- http://kliknetezde.cz/admin/obrazky/file/12792806077.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=car+parking+4+mod+apk
- 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_off0000c179.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC179 | 16792 bytes |
font_01_sfnt_off0000d990.binb7ddf9a9d236a3fded105c1b0b21588c461e54d0c8ba546e84bdc84714dafe60 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD990 | 10492 bytes |
font_02_sfnt_off0000f125.bin3ce6fba06a8be556c91b31758c59d6a6b21dae4165fbdd43f42a951af5cb7d92 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF125 | 17496 bytes |
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