MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links, many pointing to compromised CMS upload storage and disposable hosting, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the presence of multiple external links is the primary indicator of malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 6
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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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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://zhouzhuank.com/v15/Upload/file/2021919530313806.pdf In PDF document text
- http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/161441308aa0e3---85836707953.pdfIn PDF document text
- https://activsport.ro/userfiles/file/xavigibubotokaxavad.pdfIn PDF document text
- https://suacuachuyennghiep.com/uploads/files/jogidafi.pdfIn PDF document text
- https://karapinarinsaat.net/userfiles/upload/file/xejinorarig.pdfIn PDF document text
- https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613cd3422a808---59919084026.pdfIn PDF document text
- http://duoctruongxuan.vn/userfiles/image/file/40589521366.pdfIn PDF document text
- https://dreamscapes.ca/dream_scapes/userfiles/files/diwoladaxokopatozalari.pdfIn PDF document text
- http://imoroz.by/upload/file/6669761500.pdfIn PDF document text
- http://foodchemsino.com/d/files/54233610438.pdfIn PDF document text
- http://budropol.de/Upload/file/60509664585.pdfIn PDF document text
- http://ladyvenus.it/userfiles/files/pofaxamabuwakuzesef.pdfIn PDF document text
- http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/161409e7ac53ba---woxitagabutugew.pdfIn PDF document text
- http://bandenplaats.nl/cmsimages/file/govudin.pdfIn PDF document text
- http://gruppocinofilomarsalese.com/userfiles/files/xatofed.pdfIn PDF document text
- http://kondicionery-dolgoprudny.ru/upload_picture/file/dizevodunelepi.pdfIn PDF document text
- http://xn----7sbjvweekof5d.xn--p1ai/files/files/40377946013.pdfIn PDF document text
- http://websurin.net/UserFiles/File/fobijapakemupesev.pdfIn PDF document text
- http://investinwielkopolska.pl/application/lib/ckfinder/userfiles/files/55618880705.pdfIn PDF document text
- https://dhesient.com/media/21384128152.pdfIn PDF document text
- https://lescourailleurs.com/upload/editor/file/10028959507.pdfIn PDF document text
- http://lempreintedubois.fr/userfiles/lempreintedubois.fr/file/xutawitupom.pdfIn PDF document text
- http://kleinschaden.expert/userfiles/file/digegamiwakorukuxilemupi.pdfIn PDF document text
- https://centrorevisionimonregalese.it/file/18853679392.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=rog+phone+wallpaper+downloadPDF 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_off0000cec3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCEC3 | 19912 bytes |
SHA-256: 4a118663a1a22e35bfefcc979355a3fc54fcd5c839be98f08149e211a31ac9d4 |
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font_01_sfnt_off0001032c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1032C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011b43.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B43 | 10444 bytes |
SHA-256: 4a9738d4f7e4d4dc4fe0afeda420845f6f52c1df353a84ae6f110dae2b392fd2 |
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