MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is often used to exploit vulnerabilities or redirect users to malicious sites. The document also features a large number of external links, many of which point to compromised or disposable hosting, suggesting a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 7
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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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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 https://k-barrierfree.com/FileData/ckfinder/files/20210903_E0D2E72364AE3340.pdf
- http://missteenqueenuk.com/userfiles/file/42679500793.pdf
- https://marmetal.cevhertemizlik.com/userfiles/files/12137172120.pdf
- https://remont-bez-zabot.ru/files/file/50229184268.pdf
- https://rajakeempat.com/contents/files/32103582373.pdf
- http://www.szphotar.com/admin/img/files/fidixakagavoz.pdf
- http://tomei4x4.jp/js/upload/files/42945406406.pdf
- https://mzr-avocats.com/buddha/ckfinder/userfiles/files/kutijipepugojabip.pdf
- https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/d4c7f8e8a15417241b3d52d973d1b3a5/392216772.pdf
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fc0deb774f---12383010791.pdf
- http://belloverde.net/emailer/file/vumof.pdf
- http://quaint-house.com/images/blog/file/84014265005.pdf
- https://drjou-vc.com/upload/files/32295876164.pdf
- https://jiu-hang.com/upfiles/editor/files/75475601405.pdf
- http://whatcanidoforyou.eu/publish/file/lubarosefamofiv.pdf
- https://tanhoaphat.vn/userfiles/file/reridejujuzupurijaweno.pdf
- http://open.ua/uploads/ckeditor/files/32063225013.pdf
- http://ls12368.com/userfiles/file/386444168.pdf
- http://hankyunget.net/userData/board/file/bimosudazogekixevulo.pdf
- http://ngoinvest.com/uploads/ckfinder/files/50817219262.pdf
- https://goldenlinejsc.com/userfiles/file/10084120299.pdf
- https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/5p23nhuap3gusc2socarsucl0r/nezetimulupefuroxe.pdf
- https://copperscraphandlers.com/ckfinder/userfiles/files/99870981838.pdf
- http://nhatrangpalace.vn/app/webroot/upload/files/53798908834.pdf
- https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/adf93572f69e2a97bc05b687bf291c3d/fimidapadoribomasigazol.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=iphone+not+showing+as+hotspot
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bf76.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF76 | 16792 bytes |
font_01_sfnt_off0000d788.bin8e1092ddabec45f6476ffa5b245e0ef6515fd45def4c3d77049ab85554544abb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD788 | 17320 bytes |
font_02_sfnt_off00010419.binf47f5c348d3be20aac93c3c87cbe080d0fc4b4f8d39f5eef05ee5bd181737bd8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10419 | 10424 bytes |
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