MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, indicative of a link farm used for phishing or malware distribution. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 7
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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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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 http://dailyliving.nl/ckfinder/userfiles/files/1524951670.pdf In PDF document text
- http://stroi-sistema.ru/img/mumafexedelot.pdfIn PDF document text
- https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139c3e8c6d43---rewobosasusanod.pdfIn PDF document text
- https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/bc8b6a1c3e5406daddc9b904cbf9dfbb/80071348708.pdfIn PDF document text
- https://shidoremicrosys.com/media/52536349670.pdfIn PDF document text
- https://gencatakan.com/upload/file/75695555028.pdfIn PDF document text
- http://tagsu.com/attachments/fckattachments/file/jidigaliwawarukuwebuw.pdfIn PDF document text
- https://laptoptranganh.com/data/dulieu/files/lopipebanenusodemepolom.pdfIn PDF document text
- https://karinbentum.nl/uploads/file/73471271161.pdfIn PDF document text
- https://traveletrust.com/basefile/traveletrustcom/files/pasazog.pdfIn PDF document text
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161396f5342438---14214774628.pdfIn PDF document text
- http://e-kva.ru/admin/ckfinder/userfiles/files/45584236700.pdfIn PDF document text
- http://plovdivweek.com/app/templates/js/ckfinder/userfiles/files/liziza.pdfIn PDF document text
- http://poltinka.ru/userfiles/file/90659235692.pdfIn PDF document text
- http://www.tiande-global.com/ckfinder/userfiles/files/fetogovizon.pdfIn PDF document text
- http://exito-opakowania.pl/userfiles/file/tibagudoninawafedepesik.pdfIn PDF document text
- https://www.truckersplantparts.co.uk/ckfinder/userfiles/files/32703845719.pdfIn PDF document text
- https://cyc-catering.pe/disac/userfiles/file/giteve.pdfIn PDF document text
- http://purplebyanki-com.bvirani.com/ckfinder/userfiles/files/40985762447.pdfIn PDF document text
- http://mim2010.ru/userfiles/file/9074980681.pdfIn PDF document text
- https://avflash.nl/upload/files/fitozeruxixusediwubewe.pdfIn PDF document text
- https://atlanticcompact.org/userfiles/files/kewewazum.pdfIn PDF document text
- https://spotiverify.com/ci/userfiles/files/jugam.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=various+geometric+shapesPDF 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_off0000efd1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFD1 | 10740 bytes |
SHA-256: 2522584a7ce8e5a7b7ade8a5b4ddaff1f219ff70decca5af0709b303dc37cec8 |
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font_01_sfnt_off0001089c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1089C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000120ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120AE | 16788 bytes |
SHA-256: e50e8cbef9609328ef5ec547d427533cd5198c97c8ff098131f5663333d944b1 |
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