MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a spearphishing attachment designed to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://crysiq.ru/uplcv?utm_term=bobs+burgers+project+free+tv PDF link annotation
- http://myxroad.net/upload/userfiles/file///bigilodigujaxavunurex.pdfIn PDF document text
- https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/a64607beb6be8a0be7a00b57d1c0efef/biminip.pdfIn PDF document text
- http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130fa799b950---wunotojinexowotaserobuf.pdfIn PDF document text
- http://szyldkj.com/luodan/images/userfiles/file/66652874305.pdfIn PDF document text
- http://skybuildinfraprojects.com/uploads/zofowulabapoburusawixuni.pdfIn PDF document text
- http://www.impactit.in/ckfinder/userfiles/files/57772418653.pdfIn PDF document text
- https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/70552b5d7ea9e9b67801f8f1f73e00bc/napogedigowawaxelogabu.pdfIn PDF document text
- http://qianshunqs.com/admin/upload/milafofutaxemidapubokog.pdfIn PDF document text
- http://ambvetesopo.eu/userfiles/files/saledirederajuxixejusika.pdfIn PDF document text
- https://qfuse.it/images/uploaded_files/ckfinder/files/1631039918_f6032fcc5c.pdfIn PDF document text
- https://bunyaminerdemir.com/resimler/files/zewubijokasiku.pdfIn PDF document text
- http://sbnjl.com/userfiles/files/rurarinafam.pdfIn PDF document text
- https://educhina.mn/editor/files/91556241912.pdfIn PDF document text
- http://dreambeauty.kr/upload/fckeditor/file/jevedasip.pdfIn PDF document text
- https://www.lipca.com/ckfinder/userfiles/files/rukebogexulinesamutij.pdfIn PDF document text
- https://mhreng.com/userfiles/file/4247850281.pdfIn PDF document text
- http://ride-on-earth.com/images/blog/file/betitapixanefediz.pdfIn PDF document text
- http://phongkhamthienhoa.vn/images/files/sedibujoxadawibilebix.pdfIn PDF document text
- https://dalycity.com/wysiwygfiles/file/bejopexut.pdfIn PDF document text
- http://clinicaveterinariabilancino.it/userfiles/files/93430600757.pdfIn PDF document text
- http://surveycook.com/upload/tmp/202109/file/74106938135.pdfIn PDF document text
- https://alstar.uz/images/shared/file/riridopevubazaja.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_off00010c9d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C9D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000124af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124AF | 18380 bytes |
SHA-256: 2519904fb67e413f29addf117b5a26ab53a37204ef293e9e43005dd371fe0ac6 |
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font_02_sfnt_off000153b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x153B3 | 10740 bytes |
SHA-256: 030480dbc45321c41ee412da32cf87f06a5ff4fd7a793bee15616e718140f8da |
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