MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with external URIs pointing to various domains, some of which appear to be compromised WordPress uploads. The document body is unreadable, but the presence of numerous links suggests a phishing or malware distribution attempt, possibly disguised as a software download lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9905
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 https://cructi.ru/uplcv?utm_term=whatsapp+download+2018 PDF link annotation
- https://landtop.com/filespath/files/20210901232201.pdfIn PDF document text
- http://packagingandfoodmachinary.com/userfiles/file/zivagozepedumim.pdfIn PDF document text
- http://heimundsicherheit.de/userfiles/file/farogidiparenifo.pdfIn PDF document text
- http://sumosushingrill.com/uploads/files/dugodapaginutupo.pdfIn PDF document text
- http://akvari-um.ru/userfiles/file/9766907272.pdfIn PDF document text
- https://demetraproject.eu/ckfinder/userfiles/files/24385664163.pdfIn PDF document text
- http://sellmysayarah.com/userfiles/files/mezozegoxemadef.pdfIn PDF document text
- https://vietucmould.com/img-vietuc/files/wexewani.pdfIn PDF document text
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/161390fd93bb94---6054653989.pdfIn PDF document text
- http://xn----7sbbgprpk7biiq.xn--p1ai/admin/ckfinder/userfiles/files/gemilizorowuwamedivujodol.pdfIn PDF document text
- http://emanuelmlevin.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xopasevirosofuwase.pdfIn PDF document text
- http://mhfmjournal.com/data/22/2/55/64/2544879/user/2788947/htdocs/userfiles/file/91157434216.pdfIn PDF document text
- http://meandnetworking.com/ckfinder/userfiles/files/kupemunifaloroji.pdfIn PDF document text
- http://bptramptour.pl/files/file/kilirenipefogamiz.pdfIn PDF document text
- http://mathcountsoutreach.org/userfiles/file/refisupazedado.pdfIn PDF document text
- https://canionglobal.com/FCKeditor/file/5553015395.pdfIn PDF document text
- https://ukmalayalamnews.com/userfiles/file/53104147653.pdfIn PDF document text
- https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/c027d944b9b41d6a40f482613a1dc5a2/49251510965.pdfIn PDF document text
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614042e221b57---63389990527.pdfIn PDF document text
- https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141c3579e141---67388923304.pdfIn PDF document text
- http://zulassungsdienst4you.de/bilder/file/13333952342.pdfIn PDF document text
- https://betenrealestate.com/sites/default/files/file/kupedegotugupesewugura.pdfIn PDF document text
- https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f253bae079---keporixerivurinezojasojen.pdfIn PDF document text
- http://archiw.bibliotekalesmierz.eu/img/upload/files/81226939463.pdfIn PDF document text
- http://jsqnchem.com/upload/files/futanadomamonixorovix.pdfIn PDF document text
- https://burlingame.com/wysiwygfiles/file/nuxezupobafinonen.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_off00010726.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10726 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011f3d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F3D | 10744 bytes |
SHA-256: 6a1afdc9951913bbfc8f6c3c2e43f61883265c748c7a18b662b8cfca39547829 |
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font_02_sfnt_off00013800.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13800 | 18124 bytes |
SHA-256: ed1e168553b16b9a48c61e964e107b4b997b818b27b221fb2a54a5bd0661d675 |
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