MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as a malicious PDF by ClamAV and an ML classifier. It contains numerous external URLs, many of which are hosted on compromised WordPress sites or disposable domains, suggesting a link farm or phishing lure. The presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics indicates a pattern of directing users to potentially malicious external content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://synerhu.ru/uplcv?utm_term=download+minecraft+pe+mcpe PDF link annotation
- http://kochamsushi.pl/UserFiles/file/mogewilu.pdfIn PDF document text
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/15dae0f09a1e58a9156919475f52549d/91947786624.pdfIn PDF document text
- http://lidaoxc.com/upload/files/kazuvem.pdfIn PDF document text
- http://kientrucphatloc.com/upload/files/29687120163.pdfIn PDF document text
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1614150aeceaca---wilumipapadevitova.pdfIn PDF document text
- http://www.jindatunnel.com/up_files/file/32839261998.pdfIn PDF document text
- http://evola.it/userfiles/files/zetikozakix.pdfIn PDF document text
- http://tayles.com/uploaded/86015229305.pdfIn PDF document text
- http://praguetransfer.com/files/file/56175245914.pdfIn PDF document text
- https://mi-stores.com/basketballtotaal/images/editor/file/40728795438.pdfIn PDF document text
- http://uniroll.pl/user_images/file/bumafivomujozemegawujiwot.pdfIn PDF document text
- http://csc020.com/userfiles/file/20210905014403_kht3ws.pdfIn PDF document text
- http://toeicspeaking.net/_UploadFile/Images/file/27382325162.pdfIn PDF document text
- https://hoangphatdanang.com/uploads/image/files/71533097861.pdfIn PDF document text
- http://grawerlik.pl/userfiles/file/94639262994.pdfIn PDF document text
- http://gzlmjx.com/data/home/bxu2343160066/htdocs/uploadfile/files/gokelimepizinugunuluzuw.pdfIn PDF document text
- http://na3.it/misc/file/93549942505.pdfIn PDF document text
- https://perfecthospital.net/ckfinder/userfiles/files/1424959813.pdfIn PDF document text
- http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/4qjn4npv2tp8bhm1fvu3k1teg1/mixivotolelunozelanajawe.pdfIn PDF document text
- https://actor-conseil.com/files/file/zutawodubot.pdfIn PDF document text
- http://bytip.net/filespath/files/20210914091436.pdfIn PDF document text
- https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/dd81831cbef0470d3524af47607d7143/88224233610.pdfIn PDF document text
- http://hyunsin.net/userfiles/file/26536942136.pdfIn PDF document text
- 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_off0000c6c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6C7 | 10700 bytes |
SHA-256: e63998eea9c705ab65d07d124cf089f1a0480a781c26ff38fabbf0269313e4b4 |
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font_01_sfnt_off0000df47.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF47 | 18716 bytes |
SHA-256: 1468091b4517a776a7828547ad030f25cef7a2b0f5e34b89a746607d5d2959f6 |
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font_02_sfnt_off00010f8c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F8C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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