MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is often used to redirect users to malicious websites. Several heuristics indicate the PDF is part of a link farm designed to host malicious files on compromised or disposable domains. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 7
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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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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 https://grandiosieventinuziali.it/filesUploads/file/85729948287.pdf In PDF document text
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135ef0739321---3749510749.pdfIn PDF document text
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/47849850582.pdfIn PDF document text
- http://www.prieteniitehnicii.ro/documente/file/pudexewimujod.pdfIn PDF document text
- http://bdsductri.com/upload/files/3995593336.pdfIn PDF document text
- https://alwillislifecenter.org/ckfinder/userfiles/files/13688950846.pdfIn PDF document text
- https://topconta.ro/userfiles/file/81726468514.pdfIn PDF document text
- https://fotoprint.lv/downloads/file/liwixava.pdfIn PDF document text
- http://hoteldazegliotorino.com/userfiles/files/tilozeg.pdfIn PDF document text
- http://le-nora.com/userfiles/file/26191018227.pdfIn PDF document text
- https://www.leadercaravans.com.au/application/third_party/ckfinder/userfiles/files/tujuvupozevogep.pdfIn PDF document text
- http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1613185b1b2e84---javutikofuvorom.pdfIn PDF document text
- http://shiinamotors.com/js/upload/files/83451155343.pdfIn PDF document text
- http://daltan.hu/userfiles/file/59397695694.pdfIn PDF document text
- http://tataservice.it/userfiles/file/zexesa.pdfIn PDF document text
- https://www.huaikrachaohospital.go.th/assets/global/lib/ckfinder/userfiles/files/84532144273.pdfIn PDF document text
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/161382e5309112---64564466690.pdfIn PDF document text
- http://generoussecurity.com/uploads/97117106148.pdfIn PDF document text
- http://sunrui-ti.com/d/files/92386094506.pdfIn PDF document text
- http://dietaltop.com/userfiles/files/3227405460.pdfIn PDF document text
- http://ledspectrumthai.com/ckfinder/userfiles/files/98604309132.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=latihan+soal+tes+cpns+2019+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_off0000cff0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFF0 | 17512 bytes |
SHA-256: 560760c5732bffbe1f489d7330ec25617b40b77be1ffd43a24e339e7bbdc01f9 |
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font_01_sfnt_off0000fd5f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD5F | 11036 bytes |
SHA-256: ee26269d2842b5dc4076b03cade758d2b71c3e67b924947c8d24ea5ff7ade769 |
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font_02_sfnt_off0001170a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1170A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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