MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1190 Exploit Public-Facing Application
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to compromised WordPress sites and disposable hosting, suggesting a tactic to distribute malicious content or phish users. The presence of these links and the nature of the detection point towards a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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 https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/cf3cf9242030b3410d9fcd0b6c163edf/66350328507.pdf In PDF document text
- http://xn----9sbkvfu2aex3d.xn--p1ai/ckfinder/userfiles/files/topusotajareboju.pdfIn PDF document text
- http://anhopphat.com/uploads/files/jifeninavawelavelebijexo.pdfIn PDF document text
- https://www.azembay.com/wp-content/plugins/super-forms/uploads/php/files/q6sg2jf83rl6ln9s9hb04rophd/felakimajo.pdfIn PDF document text
- https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/1612bb45f98d39---87305555727.pdfIn PDF document text
- http://zsdbiopharm.com/upload/files/49739849600.pdfIn PDF document text
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a08ff68d152---2332217826.pdfIn PDF document text
- http://skontrolsengineering.com/file_media/file_image/file/dilipurexukusafuvo.pdfIn PDF document text
- http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/sng3obnnvb59d4u8b6nedbnv5o/tukes.pdfIn PDF document text
- https://www.masismarketing.com/wp-content/plugins/super-forms/uploads/php/files/1cf3b3b3e43e7ce786a03725e8941ac8/29826336076.pdfIn PDF document text
- https://producedepot.us/userfiles/files/21897130628.pdfIn PDF document text
- https://thic.muki001.com/plugin/ce1/ckfinder/userfiles/files/pugofu.pdfIn PDF document text
- https://irepairplus.nl/app/webroot/files/userfiles/files/56420622648.pdfIn PDF document text
- http://ideviceplus.nl/app/webroot/files/userfiles/files/defubuso.pdfIn PDF document text
- https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/3fa0e10872c61e09e43bf92e174c8605/13904719169.pdfIn PDF document text
- https://tonymusic.se/UserFiles/files/godipajejodijereze.pdfIn PDF document text
- http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f5db828f78---sifepotetegivip.pdfIn PDF document text
- http://lonerangerfanclub.com/ckfinder/userfiles/files/79961770383.pdfIn PDF document text
- https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/1ar4u35djhp2slu77ap1r22fhi/wipanusifixowugokeju.pdfIn PDF document text
- https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f264598354c---gazabedetapegisarupoku.pdfIn PDF document text
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/sfd2mmh1sv30v8m77r4m749rp6/lujezamofememimuloduzene.pdfIn PDF document text
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/b801bcd77a05ae58aa84186de6da2a5e/93124870141.pdfIn PDF document text
- http://nuraski.pl/wsg/userfiles/23233226671.pdfIn PDF document text
- https://weyergans-hcc.lv/userfiles/file/vuwunijutujevomap.pdfIn PDF document text
- https://ontech.vn/images/ckeditor/files/dedudozekifer.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=vtv+2018+pdfPDF 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_off00010052.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10052 | 10104 bytes |
SHA-256: d5e36c92b692dc84efe9be2841c42dffea0ea793f42bd089c9fe6a26046a9dbc |
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font_01_sfnt_off00011711.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11711 | 20636 bytes |
SHA-256: e62b52f2477f71142fe272825b7aa7c60289a488f595f2db00dae6419c49a109 |
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font_02_sfnt_off00014cff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14CFF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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