MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains embedded JavaScript and a large number of external URLs, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed to redirect users. The presence of embedded JavaScript (T1059.007) suggests an attempt to execute malicious code or redirect the user, likely as part of a phishing campaign (T1566.001).
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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 https://huntic.ru/uplcv?utm_term=how+to+connect+nintendo+switch+controller+to+steam PDF link annotation
- http://placidlakes.com/larpm/uploads/file/32365957277.pdfIn PDF document text
- https://noble-program.site/js/ckfinder/userfiles/files/matapaxevupu.pdfIn PDF document text
- http://jmyhship.com/uploadfile/files/lixipusakamoxami.pdfIn PDF document text
- http://landroverbh.com/ckfinder/userfiles/files/fulivuvigorafobam.pdfIn PDF document text
- http://autosoftware.company/autoresponders_images/files/71560000308.pdfIn PDF document text
- https://detectiveoffice.net/userfiles/file/89576527456.pdfIn PDF document text
- https://pass-eco-energies.com/ckfinder/userfiles/files/lobosijaxabexavowu.pdfIn PDF document text
- https://rafautama.com/uploads/file/felulazidezerasanifusi.pdfIn PDF document text
- https://ryokanclub.com/FileData/ckfinder/files/20210915_6E97C9C04429F810.pdfIn PDF document text
- https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/0dfpq3hss7taougr9btbk4ca55/nugobodexusud.pdfIn PDF document text
- https://dodatnagarancija.com/userfiles/file/5906003584.pdfIn PDF document text
- http://www.deco-interieure.com/userfiles/file/2646269653.pdfIn PDF document text
- https://dentrangtrisaigon.net/images/uploads/files/98904871633.pdfIn PDF document text
- http://locke-3c.tw/uploads/files/202109191546059577.pdfIn PDF document text
- http://phonphangschool.com/upload/files/49181076405.pdfIn PDF document text
- http://mgtofubbq.com/uploads/files/rivitavetusu.pdfIn PDF document text
- https://www.hkha.com.hk/ckfinder/userfiles/files/xodevuwenumizezi.pdfIn PDF document text
- https://thehealerspoint.in/admin/userfiles/file/5776059304.pdfIn PDF document text
- https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16148a9122a6cb---verofiwej.pdfIn PDF document text
- https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/01nappu5n404aqm4rud4l8ueg5/titifutenexosuwupawu.pdfIn PDF document text
- https://alice-immo.com/userfiles/file/mubirumiwivakapama.pdfIn PDF document text
- http://a1-automotivegroup.com/upload/files/notovopafav.pdfIn PDF document text
- https://cooperadora.grupocreartel.com/documentos/archivos/rusoxuxejoz.pdfIn PDF document text
- 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_off0000db1c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB1C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f333.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF333 | 10712 bytes |
SHA-256: 034428b4394c03f76e6f633ed16dfcb985291a74f3d60cefeea98f0130ad2cf4 |
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font_02_sfnt_off00010b98.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B98 | 18696 bytes |
SHA-256: f31fa57516babac58af3b85c613e7b55bbf215ae4a4c1fa8a7ca7dc9cc4b53a6 |
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