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 disposable hosting or compromised CMS upload directories, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9958
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 https://quangcaowebsite.vn/uploads/files/80400692581.pdf In PDF document text
- http://windowsplusllc.com/ckfinder/userfiles/files/wiminalesibineziweraduga.pdfIn PDF document text
- http://rockhousemethod.com/ckfinder/userfiles/files/jolowojutejuvotakonezuz.pdfIn PDF document text
- http://livestocktool.com/d/files/bozikujebosunosesedivofi.pdfIn PDF document text
- http://xn----7sbab1bcaqplb0ccyi9d.xn--p1ai/files/file/49149853945.pdfIn PDF document text
- http://curry-box-deluxe.de/userfiles/file/79389910021.pdfIn PDF document text
- https://idosekotthonaveresegyhaz.hu/files/files/78425353996.pdfIn PDF document text
- https://producedepot.us/userfiles/files/33496143491.pdfIn PDF document text
- https://exlite.it/ckfinder/userfiles/files/91170100026.pdfIn PDF document text
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131c3a9c6cbe---5645863126.pdfIn PDF document text
- http://cicm2015.mist.ac.bd/app/webroot/ckfinder/userfiles/files/63693655647.pdfIn PDF document text
- https://nsck-cykelmotion.dk/userfiles/file/welomugo.pdfIn PDF document text
- http://caudafotografia.com/userfiles/files/59059321603.pdfIn PDF document text
- http://pogotowienaukowe.com/Upload/file/855085534.pdfIn PDF document text
- http://ghefoot.com/fckeditor_userfiles/file/95708353118.pdfIn PDF document text
- https://vjlabor.pitscovn.com/uploads/Upload/files/zizukasinemag.pdfIn PDF document text
- http://gonganmi.com/userfiles/file/gabaripaxinegazu.pdfIn PDF document text
- http://lienming-rubber.com/uploads/files/202109100818354069.pdfIn PDF document text
- https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/1612f0f08d235d---50597061492.pdfIn PDF document text
- http://dialog-seversk.ru/jsplugins/ckfinder/userfiles/files/moliwujofevopumerixura.pdfIn PDF document text
- https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138680ca1feb---76957466208.pdfIn PDF document text
- https://metrosecuritynepal.com/assets/userfiles/files/36890925098.pdfIn PDF document text
- http://bestpokeya.com/uploads/files/69486239156.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=format+as+internal+storage+meansPDF 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_off0000d0e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0E3 | 18020 bytes |
SHA-256: 611ca0b19568eaa910b368e650e52181263c17d7811b50e6adc51fa51838bcff |
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font_01_sfnt_off0000fed2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFED2 | 10428 bytes |
SHA-256: 5f0547220f7ec9a295f0793d6410348cc198dccb18437bdba7fdb5d84a07c5e1 |
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font_02_sfnt_off00011669.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11669 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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