MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous links, many pointing to compromised WordPress upload directories. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the document functions as a link farm, likely to redirect users to malicious sites. The ML classifier and ClamAV detection strongly suggest malicious intent, with the embedded JavaScript potentially facilitating further malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://greenbiotech.vn/uploads/userfiles/file/45101500986.pdf In PDF document text
- https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/a7f3nhq7jtvrlv0anl0cg6r2to/88187201924.pdfIn PDF document text
- https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/1c3bfcd22d70f468e277014104cdfa8e/wawimopaturelarazeg.pdfIn PDF document text
- http://onlytech-tunisie.com/userfiles/file/fumopiwubisemuli.pdfIn PDF document text
- http://predit.ru/admin/ckfinder/userfiles/files/16191498856.pdfIn PDF document text
- http://goldenagegroup.vip/userfiles/file/47403459802.pdfIn PDF document text
- https://dancleland.com/img/upload/file/27883492498.pdfIn PDF document text
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160f0372434989---kidabelatalikama.pdfIn PDF document text
- https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/a6v7j34kl3vn0qbt4btqkms4jl/pinin.pdfIn PDF document text
- http://hublihorse.com/uploads/userfiles/files/78617196583.pdfIn PDF document text
- https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1609fe00a019df---91463039477.pdfIn PDF document text
- https://edu-mate.kr/_UploadFile/Images/file/13742548987.pdfIn PDF document text
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609242b554489---40984525685.pdfIn PDF document text
- http://waypl.pl/upload/File/rinibidup.pdfIn PDF document text
- https://soyana.de/js/ckfinder/userfiles/files/89684367355.pdfIn PDF document text
- http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/rnp2adijjmmsl3tedbi5irceol/69553729879.pdfIn PDF document text
- https://geniodelweb.com/file/3811490280.pdfIn PDF document text
- https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c3f03efcf9---rasagobu.pdfIn PDF document text
- http://lindseyderence.com/userfiles/files/31880278043.pdfIn PDF document text
- http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608194cab064e---20082252308.pdfIn PDF document text
- http://komputerzagrosze.pl/userfiles/file/najibibe.pdfIn PDF document text
- https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/k34si8niabe73grp7iuhds1sn5/mifomavutetofejam.pdfIn PDF document text
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612dd19f16acb---76185603344.pdfIn PDF document text
- https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/apqh6jltg47m7lhebgvutlo35i/vedolidivasogukegolad.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=reading+passages+grade+1+pdfPDF 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_off0000bdb1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBDB1 | 16264 bytes |
SHA-256: 80f741d51bff316dda86183ebf2165e228addcee14f8104b371a1344c9940e0a |
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font_01_sfnt_off0000e755.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE755 | 10508 bytes |
SHA-256: 4e0c4c3092458c759e7d01392772469038ccfe516a9d3347a380569845312829 |
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font_02_sfnt_off0000ff24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF24 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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