MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The document body is heavily obfuscated and appears to be malformed, further suggesting malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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 http://larben.cz/media/images/upload/file/novibetugetokonomub.pdf In PDF document text
- http://hublihorse.com/uploads/userfiles/files/ravopalebub.pdfIn PDF document text
- https://geneolock.com/locktactyuma/userfiles/file/10525547918.pdfIn PDF document text
- http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613495ce4a99e---mujujivurekewiferoguka.pdfIn PDF document text
- https://basundharamart.com/userfiles/file/kitipokupipalegatome.pdfIn PDF document text
- http://xn--elementy-zczne-kwb98g.pl/media/file/19385055334.pdfIn PDF document text
- http://hytechplus.com/userfiles/file/48791289868.pdfIn PDF document text
- http://sm300159.agchost.com/userfiles/files/wewivanuzinosijisofub.pdfIn PDF document text
- https://www.barrau-philippe-sedeco.fr/ckfinder/userfiles/files/ruwusog.pdfIn PDF document text
- http://pensionpoint.cz/userfiles/files/sesazifu.pdfIn PDF document text
- http://oreoltour.ru/sites/default/files/file/69206364326.pdfIn PDF document text
- http://www.sandipmallick.com/fckimages/file/23288638207.pdfIn PDF document text
- http://123podkrovie.sk/editor_uploads/files/savilekatidabet.pdfIn PDF document text
- https://alice-immo.com/userfiles/file/21772011631.pdfIn PDF document text
- https://calson.garment-pro.com/ckfinder/userfiles/files/xuwumedifuxewujupulaze.pdfIn PDF document text
- http://k3projekt.pl/uploads/userfiles/files/bulafosakawagenasuvivopev.pdfIn PDF document text
- http://iknow.pl/files/file/42693162609.pdfIn PDF document text
- https://goez3.com/10005001208290177/ckfinder/userfiles/files/46793329652.pdfIn PDF document text
- https://luatkhangthai.vn/upload/fck/file/kowovutubemisajowuzalo.pdfIn PDF document text
- https://luxurytravel-show.com/wp-content/plugins/super-forms/uploads/php/files/d729eebf042e9a5a4cf4f4a2d83bf8d2/buxorotuwoteguzimojikuj.pdfIn PDF document text
- http://nmways.com/uploads/fckupload/file/bidekosemu.pdfIn PDF document text
- http://1000projects.ru/upload_picture/file/19446513846.pdfIn PDF document text
- http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/16139efef90da1---sagabeduxanatunuvewi.pdfIn PDF document text
- https://xaydungdonggia.com/app/webroot/files/images/pages/files/zawuzozebami.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=street+fighter+3+alpha+apkPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ca1a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA1A | 10584 bytes |
SHA-256: 34f734d76143876f18e491dec90e6fdff3ee16db256a5ce5c4011ad472d29b5c |
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font_01_sfnt_off0000e267.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE267 | 17852 bytes |
SHA-256: 955ef8c93222d52d310bd363459a755497350671d408bf92b112886e7606d5f1 |
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font_02_sfnt_off000110b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110B8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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