MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The 'SE_FAKE_CAPTCHA' heuristic indicates the document presents a fake verification prompt to deceive the user. The numerous embedded URLs, many pointing to compromised WordPress sites and disposable hosting, suggest a phishing or link-farming scheme designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHADocument displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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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://mebel-moscow.com/content/xuploadimages/file/pivawedajerikelited.pdf
- http://zsmnowakowski.pl/userfiles/file/worigerobide.pdf
- http://biondiairsystem.it/userfiles/files/xumabedokoputefuxil.pdf
- https://angem.fr/userfiles/file/20267215178.pdf
- https://atcotourismtravel.com/userfiles/file/jurino.pdf
- https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ad52bb6f7d---69479864216.pdf
- https://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613f9d88c1828---biwukegajepozojototel.pdf
- https://edarky.net/data/file/besepepimuxiworala.pdf
- http://dothi.info/images/files/lakatolala.pdf
- http://m-s-g.ru/userfiles/files/88375593265.pdf
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/161355ac68d519---miforebazasujosu.pdf
- https://matricula.arendic.cl/files/wakugazu.pdf
- http://sungwoneng.com/upfile_editor/2021/files/sesuvebuvuwusijuminiwaxe.pdf
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613b2fb3c200a---tajidoju.pdf
- http://www.drivingschool-brno.cz/files/files/nagagijezin.pdf
- http://katela.net/userData/board/file/foboku.pdf
- https://facades-et-traditions.com/actualites/file/muzurazanunomuluvogutova.pdf
- http://globalroomplus.com/bot/ckfinder/uf/files/64243764731.pdf
- http://unseenadventure.com/userfiles/file/kosezopubozivifadogevizab.pdf
- https://tomorrowhubs.com/upload/users/files/semupeta.pdf
- http://harposwebdesign.nl/app/webroot/files/userfiles/files/kazexuweruwo.pdf
- https://keralatemples.info/ckfinder/userfiles/files/kibebafuveter.pdf
- https://www.funes.gob.ar/ckfinder/userfiles/files/lugosupuzanogokixawotin.pdf
- http://nokianhakkablue.ru/ckfinder/userfiles/files/fibire.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=splash+music+maker+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_off0000bd3d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD3D | 16792 bytes |
font_01_sfnt_off0000d554.bin4fd39cb07d5af8caf04a201ac79b8c98ad49eac55bcfa4eca705e586736679e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD554 | 10584 bytes |
font_02_sfnt_off0000ed67.bin8e5a9c8d22953ed61a857b5b75bd8f24e8391c30264f64eef024572ebbdc9ba3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED67 | 17156 bytes |
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