MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS uploads. The ML_NYX_PDF_MALICIOUS and CLAMAV_DETECTION heuristics strongly suggest malicious intent, likely to facilitate phishing or malware delivery through the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 http://www.leposeur.fr/site/upload/ckfinder/files/86501308555.pdf In PDF document text
- https://brigitte-farner.ch/userfiles/files/pokafuwerisogusezatibub.pdfIn PDF document text
- http://aj-freight.com/ckfinder/userfiles/files/10478595174.pdfIn PDF document text
- http://closehorses.com/userfiles/file/59993899141.pdfIn PDF document text
- http://floridare.ru/app/webroot/img/uploads/file/545004_jiwozivezedenafoku.pdfIn PDF document text
- https://biharlokmanch.org/userfiles/file/lotowamerewevuzino.pdfIn PDF document text
- http://minisadik-margaritka.ru/admin/ckfinder/userfiles/files/gifekevurajufaxedoro.pdfIn PDF document text
- https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/9ff7cbd8dd3f92f20888ecab8726fd9f/xufaxibe.pdfIn PDF document text
- http://jyjwqj.com/uploadfile/file///2021090623554899.pdfIn PDF document text
- http://robbes.nl/media/files/wepuz.pdfIn PDF document text
- https://rosenstein.lu/userfiles/files/kivalemubebodojotejatedor.pdfIn PDF document text
- http://chaitraglaze.com/uploads/padisokife.pdfIn PDF document text
- http://zbraneklapka.cz/ckfinder/userfiles/files/mexidenanuzikesig.pdfIn PDF document text
- http://cjmfgxfollow.morefriendship.com/upload/files/loxenawekivarajidaru.pdfIn PDF document text
- http://toyteepee.com/uploadfiles/file/210907115300301843djongp.pdfIn PDF document text
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16136f98e51659---3472117792.pdfIn PDF document text
- http://gulfcoastlist.com/userfiles/file/27380308339.pdfIn PDF document text
- http://bankerz.in/qpic/files/70029151766.pdfIn PDF document text
- https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/c23dafb4da98858bd3a5bb8c9d8bcc04/mutesefabi.pdfIn PDF document text
- https://louvre.lv/res/wysiwyg/file/nifujabokerinafujavedako.pdfIn PDF document text
- http://aeklaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/52817780674.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=how+to+get+on+someone%27s+wifi+passwordPDF 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_off0000bec5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBEC5 | 10908 bytes |
SHA-256: b2152ade4afca535f5ffa65d84693381725ab6588c1faac33c108a70636f0e32 |
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font_01_sfnt_off0000d7dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7DC | 18304 bytes |
SHA-256: d8defe49f5f32a1866928c2c56e6e570f3b889ed15826a0743b0f0f597dccb78 |
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font_02_sfnt_off00010706.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10706 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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