MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious by ClamAV and an ML classifier. It contains numerous embedded URLs that form a link farm, with several pointing to compromised WordPress sites and disposable hosting. The presence of 'utm_term' parameters suggests an attempt to track user interactions, common in phishing or malware distribution campaigns. No scripts were extracted, and the document body was unreadable binary data.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://cructi.ru/uplcv?utm_term=includegraphics+pdf+rotate PDF link annotation
- http://maynenkhiinverter.com/media/ftp/file/38609343149.pdfIn PDF document text
- https://thietbivesinhanhhuy.com/asset/files/wolimizevogagaw.pdfIn PDF document text
- http://agataklimowska.pl/userfiles/file/84498457168.pdfIn PDF document text
- https://deepex.hu/hirek/files/97049792860.pdfIn PDF document text
- https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608921802b707---24799524477.pdfIn PDF document text
- http://klpa.net/userData/board/file/74203374755.pdfIn PDF document text
- http://jfhcoaching.com/userfiles/files/gugovajajet.pdfIn PDF document text
- http://lncxjzxxw.com/upload_fck/file/2021-5-18/20210518111602913886.pdfIn PDF document text
- http://sineadstone.com/userfiles/file/46589887405.pdfIn PDF document text
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608886b385252---23595817157.pdfIn PDF document text
- https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a81b896cebd---62113357897.pdfIn PDF document text
- http://rapabzenec.cz/obrazky/files/xudukepetokugolamige.pdfIn PDF document text
- http://ghibms.com/userfiles/files/medimudibologot.pdfIn PDF document text
- https://www.rowtheerne.com/wp-content/plugins/super-forms/uploads/php/files/30d28f937feaba277a608f5aca6d28e0/nulavuzoritiwujirisabid.pdfIn PDF document text
- http://schokozentrale.de/idata/kadobiwipesa.pdfIn PDF document text
- https://dijitalsanat.link/upload/files/fesamoxezovudefi.pdfIn PDF document text
- https://www.roadsafetyrental.com.au/application/third_party/ckfinder/userfiles/files/17870209419.pdfIn PDF document text
- http://probeg2000.ru/files/userfiles/files/55005673252.pdfIn PDF document text
- https://signika.pl/Upload/file/52874228725.pdfIn PDF document text
- http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/1606d636ab1f89---1182834866.pdfIn PDF document text
- http://xn--aknmedikal-yub.com/uploads/file/zuvebede.pdfIn PDF document text
- http://studiorestagno.eu/userfiles/files/79057828591.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_off0000b624.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB624 | 10948 bytes |
SHA-256: 4e28fd9c73a0317cb7cf53d75750ec7812eab2430b5d87fa9940ee7066fef7b4 |
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font_01_sfnt_off0000cf34.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF34 | 16988 bytes |
SHA-256: 63cc702f6185de8c6c0a933cc7d090cc83b7e89a537a14a23ac2fd6faa704a6c |
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font_02_sfnt_off0000fab0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAB0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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