MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious File
This PDF file was detected as malicious by ClamAV and an ML classifier. It functions as a link farm, directing users to other PDF files hosted on compromised WordPress sites. The presence of multiple links to potentially malicious content indicates a phishing or malware distribution attempt. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ad222f934cca9219db1cac926471aeb6/35251004381.pdf
- http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c6630918c35---pajibivuvafobukejogutiwem.pdf
- http://www.serenissimaservizi.com//files/46799415644.pdf
- https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609b476a27bff---52060083829.pdf
- https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/93cdf00119baf8ebed028aa440480e90/79465263495.pdf
- https://tkquiz.com/userfiles/file/34091999140.pdf
- https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085ad7661876---95229149943.pdf
- http://hzbmsj.net/images/upload/File/wesaze.pdf
- https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607ab08841c94---45036795903.pdf
- http://www.look4job.gr/images/_user_na/file/45649344372.pdf
- http://afghansolar.com/userfiles/file/sipomolizazabusap.pdf
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/178b2e12fe45972c116f8938b575ad8d/5552549884.pdf
- http://ahcxdq.com/uploads/file/031210529676.pdf
- http://sunjewelsonline.com/userfiles/file/xorufasapasewe.pdf
- http://asesorgubernamental.com/images/file/notetebanubegi.pdf
- http://vienkiemis.lt/app/webroot/uploads/userfiles/files/94887864298.pdf
- http://www.startservis.sk/novy/ckfinder/userfiles/files/buvijevisalos.pdf
- http://kbchina.de/upload/zofopamutilovumawoxepij.pdf
- https://makeswebsites.com/clients/c/c8/c8c605999f3d8352d7bb792cf3fdb25b/File/runupunisaxi.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160804fa3252cf---nuguwiwagusel.pdf
- http://dochoiotovn.com/uploads/userfiles/file/59150547823.pdf
- http://chokmanee.com/userfiles/file/73271000209.pdf
- http://smepil.com/ckeditor/userfiles/files/rorizazag.pdf
- https://mrmusicfoundation.org/wp-content/plugins/super-forms/uploads/php/files/1g1boqq33ohl17k93kpedmishp/wodigowibabodatitalon.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=multiple+adjectives+comma
- 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_off0000e912.bind547ff52266b7940bb769bb32f54511cf2b340b42fe87ec4a655b83d60f07499 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE912 | 10760 bytes |
font_01_sfnt_off000101d7.bin6b6e1823fecc11e32997206949eee1affa3835482857f0f55539c38dc096ead7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101D7 | 17968 bytes |
font_02_sfnt_off00013103.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13103 | 16792 bytes |
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