MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, a common technique for malicious PDFs to execute actions. The PDF also contains numerous external URIs, with one heuristic specifically identifying it as a link farm on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or SEO poisoning to drive traffic to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://knshzj.com/CKEdit/upload/files/lusipigifakawigib.pdf In PDF document text
- http://musthighschool.mn/ckfinder/userfiles/files/62740432680.pdfIn PDF document text
- https://autopsrus.aerovents.com/ckfinder/userfiles/files/86336391811.pdfIn PDF document text
- http://zulassung4you.de/bilder/file/17212896809.pdfIn PDF document text
- http://milwaukee.center/userfiles/file/59775832145.pdfIn PDF document text
- http://congseng.com/uploadfile/files/26314949116.pdfIn PDF document text
- http://orsini-blasioli.it/userfiles/files/sokuvesuxafubazabilari.pdfIn PDF document text
- https://perfecthospitals.org/FCKeditor/file/49526944152.pdfIn PDF document text
- http://partnercable.com/files/jezoginidolajozilevomow.pdfIn PDF document text
- http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/ab0afdf34cb7e21f8bfbcad6786844f6/55966110476.pdfIn PDF document text
- http://chugguwang.com/files/fckeditor/file/sibew.pdfIn PDF document text
- http://torremaggiore.sitmap.it/files/files/69393246544.pdfIn PDF document text
- http://gaishachuukobuhin.com/js/upload/files/39480764066.pdfIn PDF document text
- https://www.osteopathe-montpellier-sud.fr/ckfinder/userfiles/files/87615528.pdfIn PDF document text
- https://debcopharma.com/userfiles/file/disipan.pdfIn PDF document text
- http://szymonadamczyk.pl/uploads/fck/file/zuvoredolifuzifod.pdfIn PDF document text
- https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/66oh16gsm99aaalri1ne2ku4s6/lolijudojotigoluzu.pdfIn PDF document text
- http://learnazia.com/fck/imagesfile/33663378038.pdfIn PDF document text
- http://cn-daomeng.com/upload/userfiles/files/8bccdc5ff75bb9442a0ccf1dcbe3a16e.pdfIn PDF document text
- http://alphasigmaoverseas.com/userfiles/file/raseworimojorekagoba.pdfIn PDF document text
- http://sgyscom.com/upload_fck/file/2021-9-11/20210911064150537541.pdfIn PDF document text
- http://linklandhotels.com/upfile/editor/files/39833520982.pdfIn PDF document text
- https://sluganarodu.org/userfiles/files/63738782672.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=bhool+bhulaiyaa+full+movie+online+free+watchPDF link annotation
- https://www.rt9.rspo.org/ckfinder/userfiles/files/mojotozopotarelive.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_off0000f1a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1A9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000109c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109C0 | 10992 bytes |
SHA-256: a3c6fb188d7d5d7b110fbea1dbddbe1fa66e6e66841b14aaacc2a56945457005 |
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font_02_sfnt_off0001232b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1232B | 20324 bytes |
SHA-256: bf2c2d71ba84e436da8ab8c30d9711fe34e2d44a19860cd04d70a6d72173ec44 |
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