MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to lead users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://sungwoo-n.com/userfiles/file/23540549747.pdf In PDF document text
- http://lamekatus.com/uploads/ckeditor/files/43963484866.pdfIn PDF document text
- https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/fe88e4dbb7ad8b591493108ba156cc77/61625697002.pdfIn PDF document text
- https://citronixdeflection.com/nbloom/fckuploads/file/40630090090.pdfIn PDF document text
- https://dongciao.com/uploads/files/202109090837385575.pdfIn PDF document text
- http://inbeeldt.nl/userfiles/file/tekesuz.pdfIn PDF document text
- http://chia4kids.ru/ckfinder/userfiles/files/fimugemewurowun.pdfIn PDF document text
- http://sanarina-coaching.de/ckfinder/userfiles/files/ravulexogekipu.pdfIn PDF document text
- https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/779a293a45d16505202ed37e8bdf065d/8363822547.pdfIn PDF document text
- http://thsport.dk/userfiles/file/93958864564.pdfIn PDF document text
- https://vonia.mikludava.lt/images/files/sukawotapomutuda.pdfIn PDF document text
- http://dansensvenner.dk/imagesfile///kumofavovabibu.pdfIn PDF document text
- http://aibasylhet.edu.bd/app/webroot/ckfinder/userfiles/files/zaxapunojuwezifapelokife.pdfIn PDF document text
- https://sluganarodu.org/userfiles/files/nowag.pdfIn PDF document text
- http://perilatomsk.ru/ckfinder/userfiles/files/kerenozonuwur.pdfIn PDF document text
- http://prospekt-rostov.ru/ckfinder/userfiles/files/23245200330.pdfIn PDF document text
- http://lafenicealcamo.it/userfiles/files/sufasufixitexuxirasawa.pdfIn PDF document text
- http://expertsystemgroup.com/file_media/file_image/file/nefuzipipa.pdfIn PDF document text
- http://pilot-market.ru/new/files/file/64069411077.pdfIn PDF document text
- http://china-guolin.com/filespath/files/20210904161208.pdfIn PDF document text
- http://ave-france.com/pics/files/32025658204.pdfIn PDF document text
- http://chafewyuok.handysociality.com/upload/files/xewen.pdfIn PDF document text
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161326e3406635---tezosanotegud.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=indefinite+pronouns+exercises+with+answers+pdfPDF 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_off0000e1d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1D1 | 10908 bytes |
SHA-256: 20fc4a86c04683b638788ebc408a37faa728e84cf4c584bf2d691767c59f5cc2 |
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font_01_sfnt_off0000fb19.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB19 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001132b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1132B | 18528 bytes |
SHA-256: 23b7abe18f02814e1e2bcfc44e8fb4f26b48ad949ffdecd9360e62c2f3128cb5 |
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