MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It contains a link farm pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or SEO poisoning attempt. The presence of numerous unknown URLs further supports the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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 https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16138b6144d2d9---68550388946.pdf In PDF document text
- http://www.southforconstruction.com/frontend/web/ckfinder/userfiles/files/94604279089.pdfIn PDF document text
- https://masterjobintl.com/ckfinder/userfiles/files/56933824439.pdfIn PDF document text
- http://ilksolar.com/Images/Media/files/54703705600.pdfIn PDF document text
- https://lnpro.in/ckfinder/userfiles/files/fuxuv.pdfIn PDF document text
- http://transporteslaplata.com/imagenes_web/file/11187226730.pdfIn PDF document text
- https://n-zvuk.ru/upload/file/9609927885.pdfIn PDF document text
- http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/16131938ae255d---bekegiwajeg.pdfIn PDF document text
- https://servauto.fr/img/user/file/fokef.pdfIn PDF document text
- http://canxetaidientu.com/images/file/dokubefitaxowe.pdfIn PDF document text
- http://kuppersbusch.hu/userfiles/files/mazomobuninosebokow.pdfIn PDF document text
- http://webcertain.net/contentupload/fckeditorUploads/organization_/file/xulezem.pdfIn PDF document text
- http://halmar.info/userfiles/file/15493039034.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161371264ec3e2---53690599344.pdfIn PDF document text
- http://lindendirect.com/ckfinder/userfiles/files/34224581809.pdfIn PDF document text
- http://babyshelter.net/assets/upload/files/zofom.pdfIn PDF document text
- https://telewebmarketing.com/FCKeditor/file/8377760602.pdfIn PDF document text
- http://naplesredeals.com/userfiles/files/sibaxefegikesugikep.pdfIn PDF document text
- http://emanuelarombiarchitetto.eu/userfiles/files/8278883092.pdfIn PDF document text
- https://landtop.com/filespath/files/20210911185513.pdfIn PDF document text
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/7078f27ad404ea4eaf29ff4d3777c8d7/xobupimakizakojaxejo.pdfIn PDF document text
- https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/f823b36cc90ac11edf5a83fd9bc6944b/venujalovafejonizolaxe.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=minecraft+1.16+pe+apkPDF 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_off0000db49.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB49 | 10512 bytes |
SHA-256: e05788df521e80e99f1e4cefd78a2bf97d22988d91cf9ac8be0beb02cbcca42d |
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font_01_sfnt_off0000f361.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF361 | 19504 bytes |
SHA-256: 6a28b3ac8b25eac4fdc0a9eab5cf0461a91c6164d61ce98b4c3cb1ca4f43a365 |
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font_02_sfnt_off00012577.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12577 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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