MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to external sites, many of which are hosted on compromised or disposable domains. The presence of 'utm_term' parameters suggests a phishing or SEO manipulation tactic to lure users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://medvor.ru/uplcv?utm_term=top+action+rpg+android PDF link annotation
- http://greddy.com/admin/common/ckfinder/userfiles/File/33804793258.pdfIn PDF document text
- https://dutchfansitenetwork.nl/ckfinder/userfiles/files/33126084570.pdfIn PDF document text
- https://lockerova.eu/admin/upload/documents/tonirejuninunajibizenirit.pdfIn PDF document text
- https://bibliotheque-des-arts.com/ckfinder/userfiles/files/36922192767.pdfIn PDF document text
- https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613709e99e65f---7007291926.pdfIn PDF document text
- http://webcertain.asia/contentupload/fckeditorUploads/organization_/file/85633375624.pdfIn PDF document text
- https://inoxquochoang.com/app/webroot/files/images/pages/files/93321791300.pdfIn PDF document text
- https://vinocastillo.hu/editor_up/gogatikofowikerikowivo.pdfIn PDF document text
- http://borneneskontor-landsforening.dk/userfiles/file/kapijuwinu.pdfIn PDF document text
- http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1614219374bdc7---4926971750.pdfIn PDF document text
- http://morard-mcf.fr/data/Files/79555092218.pdfIn PDF document text
- http://janaturismointegrato.com/uploads/file/sajabuxanufi.pdfIn PDF document text
- http://oldstat.ww.tj/img/file/72306634188.pdfIn PDF document text
- https://saikekanglun.com/filespath/files/20210901205326.pdfIn PDF document text
- https://artgallery.devctn.com/ckfinder/userfiles/files/wuxitiwepidapotak.pdfIn PDF document text
- https://daks-96.com/f/uploads/files/43345446488.pdfIn PDF document text
- http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161429bafe5516---nolawe.pdfIn PDF document text
- http://mediedil.eu/userfiles/files/zimupibuz.pdfIn PDF document text
- http://optimumnieruchomosci.pl/uploads/userfiles/files/mezabaxinizatewaji.pdfIn PDF document text
- https://cicadit.ro/UserFiles/file/1071670904.pdfIn PDF document text
- https://dnmpaint.com/sdcc/images/file/gibakumegez.pdfIn PDF document text
- http://heatexchangersolution.com/upload_fck/file/2021-9-6/20210906213236221908.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_off0000e000.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE000 | 10304 bytes |
SHA-256: fcd0accdb59f813b15fb2e530078456c34828cc2ad2e0abae8c843ec67dbd5de |
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font_01_sfnt_off0000f720.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF720 | 17560 bytes |
SHA-256: 2ff5fbb20d310483afc855e5f879a89fe3fb18b4a717efbc1b05a383578062bf |
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font_02_sfnt_off000124f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124F9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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