MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for executing malicious code. It also features a link farm pointing to compromised WordPress sites, suggesting an attempt to distribute further malicious content or conduct phishing. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146ba30f4105---9632177567.pdf In PDF document text
- http://nage-z.com/ckfinder/userfiles/files/zepiguzifakafefijun.pdfIn PDF document text
- https://whatproperty.ng/ckfinder/userfiles/files/kexuxexufugivonepumowu.pdfIn PDF document text
- http://ros-audit.com/i/up/file/nagilurarom.pdfIn PDF document text
- http://bursaceyizgelinlik.com/images_upload/files/velije.pdfIn PDF document text
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ac77feeeac---50402982365.pdfIn PDF document text
- http://hangtatmj.com/userfiles/vizajar.pdfIn PDF document text
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613644b4cfc29---23874836451.pdfIn PDF document text
- http://khachsanmyngoc.com/upload/files/92866091295.pdfIn PDF document text
- https://costabravas.com/uploads/localidades/files/sigozarevere.pdfIn PDF document text
- https://luatkhangthai.vn/upload/fck/file/4842710626.pdfIn PDF document text
- https://apteka-wratislavia.pl/halatecza/userfiles/file/detagusevedalipe.pdfIn PDF document text
- https://tbsva.org/Upload/files/20210906161709.pdfIn PDF document text
- http://thietbiotovn.com/Images_upload/files/48481785641.pdfIn PDF document text
- http://kmsenior.org/file/files/muxisizunika.pdfIn PDF document text
- http://chelseafoodmart.com/uploads/files/36992622441.pdfIn PDF document text
- http://zvezda-rostov.ru/ckfinder/userfiles/files/12809314588.pdfIn PDF document text
- http://jualumnitoronto.com/editor/uploadfiles/27707850226.pdfIn PDF document text
- http://brickchamber.com/ckfinder/userfiles/files/79582054296.pdfIn PDF document text
- https://copacndg.com/images/uploads/files/85134622836.pdfIn PDF document text
- http://regalmotors-jp.com/js/upload/files/89569481460.pdfIn PDF document text
- https://topupdana.com/contents/files/kakupiwase.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=aplikasi+chord+gitar+pcPDF 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_off0000e7ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7FF | 10632 bytes |
SHA-256: 4b76798bb21ad352c570b6d73b351fb09d39e1fae8315bf13dd0ab141846d5b0 |
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font_01_sfnt_off00010049.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10049 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001185b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1185B | 19376 bytes |
SHA-256: 418697b0f098b939a7a92c2642e1c85f56863d74f376ca93fb27e5d4ea719c18 |
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