MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or are part of link farms on disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious document, likely delivered via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9909
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://trungtamdaykem.vn/Images_upload/files/42566922272.pdf In PDF document text
- http://kolesnikov.pro/ckfinder/userfiles/files/sujunikepevexilob.pdfIn PDF document text
- http://axwelindia.com/uploads/rutajareraten.pdfIn PDF document text
- http://limoride.net/gallery/file/80591419990.pdfIn PDF document text
- http://vasset.bg/userfiles/file/65133013791.pdfIn PDF document text
- https://akonis.ch/userfiles/files/lusesujujonuzarop.pdfIn PDF document text
- http://langeline.com/ckeditor/upload/files/lemomadupop.pdfIn PDF document text
- https://kratky.eu/files/file/24252122487.pdfIn PDF document text
- https://oncetrabzon.com/resimler/files/56975646942.pdfIn PDF document text
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614676f3c2520---9518347574.pdfIn PDF document text
- https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/e55f0eba0787596b15a35c3de0f47215/7594046999.pdfIn PDF document text
- http://393citizen.com/upload/files/suvavu.pdfIn PDF document text
- http://bndweb.nl/upload/files/xivegupej.pdfIn PDF document text
- http://cesvil.it/filesUploads/file/44571729846.pdfIn PDF document text
- https://episcopiaoradiei.ro/files/76021625370.pdfIn PDF document text
- https://treasurehunterdetectors.solar-ovens.net/ckfinder/userfiles/files/82475514117.pdfIn PDF document text
- http://lowchens.org/userfiles/file/wimuvinogoxeb.pdfIn PDF document text
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613018a8eab2b---35080610623.pdfIn PDF document text
- https://foodthings.us/userfiles/file/nejizupelav.pdfIn PDF document text
- http://chronocertif.com/userfiles/file/bapagogurolikamudukowu.pdfIn PDF document text
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613de91292d10---kofimalokoru.pdfIn PDF document text
- http://elskup.pl/images/assets/file/92372941848.pdfIn PDF document text
- https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1614654a93db6a---luxuz.pdfIn PDF document text
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d8aeeaa07f---2109585080.pdfIn PDF document text
- http://fine-cottage.ru/userfiles/file/91747679792.pdfIn PDF document text
- https://sieuviet.net/webroot/img/files/68639623676.pdfIn PDF document text
- https://ohcsi.com/ckfinder/userfiles/files/11091969177.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=crowd+city+io+unblockedPDF 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_off0000b67a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB67A | 14260 bytes |
SHA-256: 3e1cef5e57fd6ed32ce8ab3f16382482b9dd6f9f5bf11385c87563d94d1ac704 |
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font_01_sfnt_off0000d9bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9BB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f1d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1D2 | 10596 bytes |
SHA-256: 986fe69e1a3033cabc66e7559f810ca5ec5f10362101a73ababb656e35f83a96 |
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