MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm pointing to compromised CMS upload storage and disposable hosting, suggesting an attempt to distribute malicious content or phish users. The embedded URLs, while numerous, do not directly indicate a specific malware family but confirm the document's role as a distribution vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 http://na-bytecek.cz/UserFiles/File/69798655172.pdf In PDF document text
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1613e8497ed3b8---xuvivinalelamif.pdfIn PDF document text
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c38fc324e0---kezevuluzadofebasojod.pdfIn PDF document text
- http://istanbulballoons.com/ckfinder/userfiles/files/63961890086.pdfIn PDF document text
- http://promocode.lu/userfiles/files/61193503763.pdfIn PDF document text
- https://charming-dc.com/uploads/files/202109162134439847.pdfIn PDF document text
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140b925a5a5e---21868176724.pdfIn PDF document text
- http://hutbephottaihaiphong24h.com/upload/files/venav.pdfIn PDF document text
- http://abwsalisbury.com/uploads/files/29901463490.pdfIn PDF document text
- https://studiecarriere.it/uploads/file/ditenujefejimizonuruzakab.pdfIn PDF document text
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16130f22b021dc---84624087714.pdfIn PDF document text
- http://www.impactit.in/ckfinder/userfiles/files/ravozazivaraleratir.pdfIn PDF document text
- http://files.ibiza-ferien.de/file/77997402862.pdfIn PDF document text
- http://kuhomania.ru/ckfinder/userfiles/files/29003014618.pdfIn PDF document text
- http://scard.vn/app/webroot/uploads/files/zetevidakibozejise.pdfIn PDF document text
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/rrilq577jpk7dtfg3uhrqgkmf3/86322352694.pdfIn PDF document text
- http://yuanhebiotech.com/upload/files/kataz.pdfIn PDF document text
- https://prestinieurope.ch/userfiles/files/xofudifokojiludokola.pdfIn PDF document text
- http://nhakhoasaigonkimcuong.com/uploads/images/files/panunamolaweme.pdfIn PDF document text
- http://avvocato-callegaro.it/public/file/33063182638.pdfIn PDF document text
- https://egc.ecrom.work/syo/files/67553915784.pdfIn PDF document text
- http://mobiliteit.nu/files/fonatisabefukobenaxepe.pdfIn PDF document text
- https://lengthening-sldf.com/userfiles/file/36885110558.pdfIn PDF document text
- http://fastcredit.ge/userfiles/file/26510609124.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=android+11+easter+egg+note+20PDF 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_off0000ed07.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED07 | 19108 bytes |
SHA-256: 2c0ec9b8f1e8b173508cc160fff215a2d7c91fe0cac61dd5f9e9367e2e7627f6 |
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font_01_sfnt_off00011e83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E83 | 10652 bytes |
SHA-256: bc0743a92a7dc89a15dffa3c04edd0a982798f6e39bb33c4ba83244d06f1dad3 |
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font_02_sfnt_off000136ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136EE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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