MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a phishing or malware distribution campaign. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this. No scripts were extracted, but the overall structure and URL patterns are consistent with malicious PDF lures.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://crewmak.ru/uplcv?utm_term=the+three+robbers+pdf PDF link annotation
- https://volpatoebrum.com.br/_common/admin/scripts/ckfinder/userfiles/files/15728683409.pdfIn PDF document text
- http://mineraux-et-lithotherapie.fr/ckeditor/upload/files/sijawejuga.pdfIn PDF document text
- http://smartvoicesys.com/userfiles/86877894801.pdfIn PDF document text
- http://nhadephoanhao.vn/upload/ckupload/files/51953658170.pdfIn PDF document text
- http://ydchem.cn/filespath/files/20210919001746.pdfIn PDF document text
- http://rcp-ranstadt.us/files/54506926800.pdfIn PDF document text
- https://esportenerd.com/app/webroot/ckfinder/userfiles/files/kiganemuf.pdfIn PDF document text
- http://mn-print.ru/ckfinder/userfiles/files/nuvubanerozagote.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142d025265bc---38639677110.pdfIn PDF document text
- https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/d8f1d717e9f6581bf4164e21ebaa3047/1030395885.pdfIn PDF document text
- http://instit.ac/ckfinder/userfiles/files/masasi.pdfIn PDF document text
- http://an-ocn.ru/ckfinder/userfiles/files/86320860991.pdfIn PDF document text
- http://aqs-group.it/userfiles/files/xemomaxifowareturumojuz.pdfIn PDF document text
- http://zaintik.org/files/galeria/files/jibogu.pdfIn PDF document text
- http://www.yevres.fr/ckfinder/userfiles/files/zonasopakagurezazubur.pdfIn PDF document text
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ac9657b653---27819757479.pdfIn PDF document text
- http://aedjtjdshbf.pretty-match.com/upload/files/7278981272.pdfIn PDF document text
- https://twinscooking.nl/twins/userfiles/file/36930020303.pdfIn PDF document text
- https://festival-bg.com/media/ckuploads/files/9462156455.pdfIn PDF document text
- http://veraschwemmle.de/fckdata/file/bopajogazuwogusuwapeterov.pdfIn PDF document text
- https://widerbet.pl/userfiles/file/36957392160.pdfIn PDF document text
- http://slbreakingnews.com/ckfinder/userfiles/files/xiwofifibitujur.pdfIn PDF document text
- http://gysanya.com/upload/file/21091709053267249705glsih0ri8o.pdfIn PDF document text
- https://charlesstreetvideo.com/userfiles/file/gasidetorotojixofu.pdfIn PDF document text
- http://velapower.com/glwh/UploadFile/file/2021091921594373499.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_off0000d06c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD06C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e87e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE87E | 18980 bytes |
SHA-256: b08974ad206a078345d31644ca237f5e93f43916af1bea032b6225d098854a42 |
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font_02_sfnt_off00011988.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11988 | 10292 bytes |
SHA-256: 0c5ebab642e5130d11e8c80c2d274cb32500b3751020e50dcaabcd2ae10b6c4d |
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