MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. Heuristics indicate it functions as a link farm, with numerous URLs pointing to potentially compromised CMS upload directories. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure suggests an attempt to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160967c74ed2e4---41711256744.pdf In PDF document text
- http://www.annaleehuber.com/content_files/file/newezape.pdfIn PDF document text
- https://lamaisonducoeur.ca/upload/editor/file/kifapa.pdfIn PDF document text
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/c21b24ee565a9279b8c4d59fe82c0e93/2210439707.pdfIn PDF document text
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f64a6a4af0---16897598671.pdfIn PDF document text
- https://muachungbaohiem.com/uploads/userfiles/file/8544586496.pdfIn PDF document text
- http://sk-uralstroy.ru/uploads/files/zisufevufop.pdfIn PDF document text
- https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/4e2a763ceea7cdcb975aaca7bc2ad503/rugisesuxarod.pdfIn PDF document text
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/9de06ff87e00f4f2c48d8a650f2875a1/rurididubizugoze.pdfIn PDF document text
- http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607662181fd83---mulawabozimirilobo.pdfIn PDF document text
- http://hani-bee.com/userfiles/files/wadetetiruzi.pdfIn PDF document text
- http://nacyc.jp/Upload/file/xisek.pdfIn PDF document text
- https://casalindasbakery.com/ckfinder/userfiles/files/riwug.pdfIn PDF document text
- https://kitapkapla.com/upload/ckfinder/files/59844904009.pdfIn PDF document text
- http://webmba.fr/client/logo/file/bilexiwepojotaxeremu.pdfIn PDF document text
- https://sjalikave.hu/pictures/file/49255488247.pdfIn PDF document text
- http://aelma.com/sites/default/userfiles/file/8627135492.pdfIn PDF document text
- https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/15cacd8d33835c9e0f83397bd7db1886/18501780037.pdfIn PDF document text
- https://www.beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/2f3938c7595ea2b26e35c2cdc4235527/5036463358.pdfIn PDF document text
- http://benardoutlite.com/admin/fckeditor/fckdata/file/pulivakuvuz.pdfIn PDF document text
- https://francoisdaulte.com/ckfinder/userfiles/files/vemejar.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=how+to+open+restricted+sites+in+mobilePDF 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_off0000f3ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3AB | 10728 bytes |
SHA-256: e300281d915aaf55eb122f9e2881e9ec8bd9cd3505381e39d764d09616d1f1cc |
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font_01_sfnt_off00010c17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C17 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012429.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12429 | 16768 bytes |
SHA-256: 35c5a53d007da664fe90c63d33bc0d0a47d89f20602268294bbf7035e997c521 |
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