MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The document contains numerous embedded URLs pointing to various PDF files hosted on different domains, suggesting a link farm or SEO poisoning attempt. While no scripts were explicitly extracted, the PDF structure and the presence of many external URIs indicate a malicious intent to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 5
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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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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://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/161392533bf338---24940906475.pdf In PDF document text
- http://veganogle.es/uploads/ckfinder/files/55899635390.pdfIn PDF document text
- https://realxenon.ru/uploads/files/52797927021.pdfIn PDF document text
- https://sfeerweter.nl/userfiles/files/numutemif.pdfIn PDF document text
- http://www.aamuhsv-madisonalumni.org/files/files/budefadigenidoxokodo.pdfIn PDF document text
- http://flightshop.jp/images/blog/file/74154164131.pdfIn PDF document text
- https://www.leadercaravans.com.au/application/third_party/ckfinder/userfiles/files/zeloza.pdfIn PDF document text
- http://corporatiegids.nl/uploads/files/ziwodowolelelenaf.pdfIn PDF document text
- https://mexico-airport-transfers.com/ckfinder/userfiles/files/vinenijin.pdfIn PDF document text
- http://matchedtubes.de/userfiles/file/tegugo.pdfIn PDF document text
- http://thekitchendesignstudio.org/uploads/files/piviludifupedokusazotu.pdfIn PDF document text
- http://ohdiabo.net/images/ckeditor/files/sogiwunapipuvesovo.pdfIn PDF document text
- https://demircanticaret.com/userfiles/file/buvezusulixikowowapupi.pdfIn PDF document text
- https://herfection.herfection.tw/upload/ckfinder_temp/files/20210908193119.pdfIn PDF document text
- https://e-uchebnici.com/img/file/rewizuginutevo.pdfIn PDF document text
- https://deltarents.com/upload/ckfinder/files/wedimigudowuxepiwupozobo.pdfIn PDF document text
- https://eventpro-kontraktorpameran.com/uploaded/files/87227548631.pdfIn PDF document text
- https://cosmopolitanhotelbg.lastrada.bg/uploads/wysiwyg/files/nizaguwulilelixuzevuxav.pdfIn PDF document text
- http://pileshoppen.dk/userfiles/file/subodinakerinokitejob.pdfIn PDF document text
- https://ddtoyz.com/ckfinder/userfiles/files/39582731817.pdfIn PDF document text
- https://bengalroys.com/ckfinder/userfiles/files/datemusus.pdfIn PDF document text
- http://cheumst.com/upload/fckeditor/file/kataradoxuxuwomo.pdfIn PDF document text
- http://xaydungphongphu.com/uploads/files/zatax.pdfIn PDF document text
- https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1613033d72905a---52710373591.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=watch+silence+online+freePDF 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_off0000d968.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD968 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f17f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF17F | 10424 bytes |
SHA-256: 28b989ce984e9d161d6ef5c8656df62a43c9db12063fd25b94821e1dfe47eb83 |
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font_02_sfnt_off00010917.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10917 | 17992 bytes |
SHA-256: a9a92473aa91a6221d03566a2a048e922dbc7d15cef04f4ca4be0695af2498a8 |
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