MALICIOUS
164
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 functions as a link farm, directing users to various compromised websites, many of which host further PDF files. The presence of a 'download button' heuristic suggests a lure to download additional content, likely a second-stage payload. The embedded URLs and the nature of the heuristics point towards a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/37dff53a25082d86c93c23258dd3f29d/20147397621.pdf In PDF document text
- https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/96c19139fca747a1c4018021c82e6e6c/15264872537.pdfIn PDF document text
- http://cmtdental.com/upload/ckimg/files/gubese.pdfIn PDF document text
- http://kimkhimientrung.com/uploads/image/files/navivikuk.pdfIn PDF document text
- http://namlinhchisapa.com/userfiles/image/file/lixofan.pdfIn PDF document text
- https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/sh77p8afulj1o6nq7454of3mu6/72285649335.pdfIn PDF document text
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/8l6jo49tpbi15kk4jkfc7797o6/82963854144.pdfIn PDF document text
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/160f70cccaec8c---mepuzosomog.pdfIn PDF document text
- http://www.annaleehuber.com/content_files/file/96976958162.pdfIn PDF document text
- https://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/80e061dd4f511280b37f337f5ad7b22a/93531258518.pdfIn PDF document text
- http://www.microsinusectomi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070c0da76224---62291531797.pdfIn PDF document text
- http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c780bf742b7---zagagujesuxusolazusegatuf.pdfIn PDF document text
- https://www.helmmsp.ca/wp-content/plugins/super-forms/uploads/php/files/50fe7141554d6de92821c450af82d104/kidejevoloxokogumogiges.pdfIn PDF document text
- https://lion-trading.co.uk/wp-content/plugins/super-forms/uploads/php/files/gmcbaaemj4h8j778l6n7g4lkmq/89225696564.pdfIn PDF document text
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/ef2a9e393466fa3128e75f86b06b6abf/surutazinitujesodeni.pdfIn PDF document text
- https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084304f2d4bb---nanemalafodepejamoxabar.pdfIn PDF document text
- http://airsoft1.ro/files/file/bitometixegevu.pdfIn PDF document text
- http://blevy.com/ckfinder/userfiles/files/29693008421.pdfIn PDF document text
- http://wabasnb.com/files/fckeditor/file/213640161960a76b10efd4b.pdfIn PDF document text
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/e6195886580312d4ee375be596768bc4/kegupifur.pdfIn PDF document text
- https://interface-graphique.com/upload/editor/file/zumokikozisusel.pdfIn PDF document text
- http://rebornfair.com/FileData/ckfinder/files/20210621_421B156F46DD522D.pdfIn PDF document text
- http://www.serge-valentin.net/ckfinder/userfiles/files/43931719556.pdfIn PDF document text
- http://austintownfitch1980.com/clients/879833/File/jebifizosu.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=pile+cap+design+example+as+per+is+codePDF 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_off0000d97c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD97C | 10860 bytes |
SHA-256: 40df32a55c14302dcdc7b4ff36f258868d38e81ae498441ff1ce48911a42134f |
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font_01_sfnt_off0000f252.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF252 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010a64.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A64 | 16496 bytes |
SHA-256: eab79ccbc8557ee84ec9ea535be0a223588d9b9bcda3fe9ccc82cdd877337295 |
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