MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external PDF files hosted on various domains, indicating a link farm designed to redirect users. The presence of 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics strongly suggests malicious intent, likely for phishing or distributing further malware. ClamAV also detected this as 'Pdf.Phishing.Trojan'.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 6
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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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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://gaongonmaiphuong.vn/webroot/img/files/xusipos.pdf
- http://solyaris.pro/admin/ckfinder/userfiles/files/wuxawarafivib.pdf
- http://akinmedikal.com/uploads/file/javono.pdf
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1608b650b35c52---38382857161.pdf
- http://sky1981.com/asset/uploads/files/faselujebakijemigelolanuw.pdf
- http://briztravel.com/upload/files/nuwotojuxetuti.pdf
- https://digireg.it/upload/jevog.pdf
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092016c2b6f0---getofewenekugatetewigexop.pdf
- http://dragonspond.com/uploads/files/69988048881.pdf
- https://laihouston.com/wp-content/plugins/super-forms/uploads/php/files/2b9372bd0e9f41c9e343e17ec23f0220/190357152.pdf
- http://sunnysidehigh65.com/clients/d/d0/d00d1ad1640c45b888f5e58ac216a5d1/File/32047374420.pdf
- http://autowagon.it/userfiles/files/xizoxovisovixabavuwaz.pdf
- https://maydangson.com/vietkiendo/upload/file/purapunuzubasajalidamule.pdf
- http://capableapp.com/uploads/files/xozanowufibula.pdf
- https://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/d982114d827d314fd0186505f43e9d7f/15995116522.pdf
- https://seataclightingalaska.com/wp-content/plugins/super-forms/uploads/php/files/5c9020e1bcd7bd3b284d74606b533447/89774574491.pdf
- https://vinacomvietnam.vn/uploads/news_file/walemudizofuvibepilosu.pdf
- https://silga.ca/userfiles/file/78847836474.pdf
- http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a6da49183cc---rafew.pdf
- http://pressvaluation.net/userfiles/file/92757937525.pdf
- http://ardechetendancebrut.fr/userfiles/ardechetendancebrut.fr/file/wanuv.pdf
- https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/160884a8a64558---luduzoxakagavepafumura.pdf
- https://www.asahinafunnels.com/wp-content/plugins/super-forms/uploads/php/files/434nomgs4u5vkhi9uqine00gvq/wanovebu.pdf
- https://globalmediaminds.com/uploads/files/95824250484.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=life+skills+worksheets+for+older+adults
- 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_off0000d9c5.bin068e58aed904f311de8f085d6f2b97d7243867335a4932911aeb93c945cd9b75 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9C5 | 10580 bytes |
font_01_sfnt_off0000f225.bina0343b4dccd0df0dc09f97470f50cebfc33e99b255fa7ebc1f68f93cfcad1024 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF225 | 18212 bytes |
font_02_sfnt_off000120cc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120CC | 16792 bytes |
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