MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress upload directories, suggesting it functions as a link farm to distribute malicious content or phish users. The presence of external URIs and link farms strongly suggests an attempt to redirect users to potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 6
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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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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://infrive.ru/uplcv?utm_term=mechanical+construction+engineer+resume
- https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9e93fe961c---65574975234.pdf
- http://krevue.cz/UserFiles/File/39164956023.pdf
- http://bmhs71.com/clients/c/c9/c97ff408e01126d63256cf68004d6641/File/57936903629.pdf
- http://littlepearlbooks.in/data/eimages/file/tumojediriboxez.pdf
- http://eksan-ltd.com/userfiles/file/najifepudexevararef.pdf
- https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/tp0hclarlj4431tldoq61m9fvo/kukot.pdf
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/1608fa1b512785---weliporuwiluz.pdf
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160754ede83d40---90275810704.pdf
- https://nepalimodelagency.com/userfiles/file/fegimutozonepafatubid.pdf
- https://www.mii.net/wp-content/plugins/super-forms/uploads/php/files/8d0d3be641d54c7dce9f83f8eb9c4b6a/71006059035.pdf
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a828f832cb3---49737855252.pdf
- http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d3c13cca34---91976638341.pdf
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607da86120dea---54590939064.pdf
- http://execdentalclinic.com/uploads/ckfinder/userfiles/files/62925337880.pdf
- http://al-bandak.com/userfiles/file/robubodezasefudo.pdf
- http://agcslohian.com/userfiles/file/40457582666.pdf
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce261ce1cb9---gigop.pdf
- http://contentworks.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606e58202f40b---giriwifuwuk.pdf
- http://activesolutionelectric.com/images/file/repekixerurupimariked.pdf
- https://www.expoagrogto.com/wp-content/plugins/super-forms/uploads/php/files/9nro4rbc033hlm64jsui2ffls4/60197686404.pdf
- https://nscs.org/wp-content/plugins/super-forms/uploads/php/files/b5faf015db9415b74f41fb7d23ec2aa5/69839026281.pdf
- https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/ba1805ef76416aebbae3387400d99440/saxodevadosetuwig.pdf
- http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608434f30e917---xorulezazogefefevaxizab.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_off000104bc.bin8c9ecce10c81cb5a4c928a53aa9b1186712cdb9451c4c7fe5e207bdc46b484c8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104BC | 10768 bytes |
font_01_sfnt_off00011d55.bin96211715837b0d111c9cdf09f2ad1208eaaa7738a65911e7047b7825bf84e499 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D55 | 17588 bytes |
font_02_sfnt_off00014ad9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14AD9 | 16792 bytes |
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