MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, presenting numerous URLs that lead to various websites, some of which are hosted on compromised CMS upload storage. This suggests a phishing or redirection scheme designed to lead users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 http://miwon.com.vn/app/webroot/uploads/files/18514288819.pdf In PDF document text
- https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/161380cfeb4aa0---96532587779.pdfIn PDF document text
- https://emilline.dk/ckfinder/userfiles/files/64745925246.pdfIn PDF document text
- http://pitchdecor-construction.com/user_img/files/20160075564.pdfIn PDF document text
- https://omegaplus.bg/uploads/pages/files/ripekazeperaruteveram.pdfIn PDF document text
- http://cdkkck.com/uploadfile/file/20211006113534.pdfIn PDF document text
- http://we-women.de/default/files/uploads/file/74167238780.pdfIn PDF document text
- http://say-international.eu/userfiles/file/vozetegosusobeb.pdfIn PDF document text
- http://emeraldcovepartners.com/_data/images/file/74579650051.pdfIn PDF document text
- https://multimetrics.com/ckfinder/userfiles/files/towezizuxodarabaj.pdfIn PDF document text
- http://mcap.cz/images/uploadedimages/file/kikajavuroxanivozajad.pdfIn PDF document text
- https://kenkochaya.com/user_data/ckfinder/files/82780285498.pdfIn PDF document text
- https://etest.vn/app/webroot/uploads/files/jomirifepelexirurulif.pdfIn PDF document text
- https://epponline.com/mentorfinancial/page_images/file/kujuwebovufileso.pdfIn PDF document text
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/161442d5f0476e---49732661747.pdfIn PDF document text
- https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/74fb4b12e855ed6be1367bd95aefb6cb/57193669886.pdfIn PDF document text
- http://murito.fr/ckfinder/userfiles/files/wakesomalobakisarif.pdfIn PDF document text
- http://yugang360.com/upload_fck/file/2021-9-15/20210915174844192107.pdfIn PDF document text
- https://limadelimon.com/images/file/32684257754.pdfIn PDF document text
- https://solener.info/ckfinder/userfiles/files/93529049548.pdfIn PDF document text
- https://newsale.linyn.mobi/upload/ckeditor/pages/files/gafikezer.pdfIn PDF document text
- https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/4nlv63adukam7lt80aa99k6fva/fosodapawefokuzobeluzap.pdfIn PDF document text
- https://futurefacesnyc.com/uploads/file/58029001153.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/161420b9c02ac3.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=shortcut+to+close+browser+tabPDF 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_off0000d3b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3B3 | 10532 bytes |
SHA-256: 01c7bb07d9e578c78342d68c8b9a2f71f7816a8f496d1d807e8147801495aedc |
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font_01_sfnt_off0000ebf1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBF1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010403.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10403 | 17508 bytes |
SHA-256: 02e4b5dcfee96b9e1fdc8f35f17ddaabae588e1c8c827c48e126f161f66eb89b |
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