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 WordPress sites or are part of a link farm designed to redirect users. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://yonezawanet.jp/units/24250/zcycom/files/kosogagi.pdf
- https://ysh.my/userfiles/file/purudimamukorowo.pdf
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141b3ad582c5---fifajaparevimemitaxu.pdf
- http://brezov-gaj.si/uporabnik/file/sifozinaxod.pdf
- http://huefpdf.org/upload/file/72023752375.pdf
- https://demircanticaret.com/userfiles/file/32434323301.pdf
- http://kingsbrite.com/kingsbrite.com/userfiles/file/wanalilomeku.pdf
- http://shanghaiqingchen.com/upload/files/birewumifalajeke.pdf
- https://tims.ro/ckfinder/userfiles/files/ferogesiled.pdf
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1614b65ce609d0---fijedi.pdf
- https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/1614248f56d5ab---23580329775.pdf
- http://actlogistic.vn/upload/editor/files/fogiwor.pdf
- https://dipinkrishna.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fb98f112c1---80468659685.pdf
- https://agape4u.org/userfiles/file/54199881301.pdf
- http://saiprogetti.net/userfiles/files/leguxejopiwugefusuma.pdf
- https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/161516a426ec7b---25356071777.pdf
- https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1613ac2ec82121---55772048133.pdf
- https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/9851b78809b06bd0e019bbe3e72ca7ae/98823983031.pdf
- https://krassimirtaskov.com/userfiles/files/lakidi.pdf
- https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/e379c8f9348cea6ff5dc356745f3a59b/pisunijog.pdf
- https://nhanloc.net/userfiles/file/17397851704.pdf
- http://www.ciesol.com/ckfinder/userfiles/files/60682275524.pdf
- http://prakseologia.eu/userfiles/file/luxovawofenebozofi.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=libro+tecnologia+3+secundaria+editorial+castillo+pdf
- 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_off0000c4b6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC4B6 | 16792 bytes |
font_01_sfnt_off0000dcc8.bin1b773ce5650089fc5ae139f5366e27a30644147057c54b0fedfb4df55bf91e34 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCC8 | 18360 bytes |
font_02_sfnt_off00010c45.bin0a7ce019b6e7c30e87a31cb8d59708946defe7babbc05326a7b73dababa9f2c4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C45 | 11164 bytes |
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