MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious content. No scripts were extracted, and the document body was unreadable, but the presence of these links strongly indicates a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://vinaarc.com/app/webroot/files/ckfinder/userfiles/files/80653491362.pdf In PDF document text
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614238b10f1b6---11325322714.pdfIn PDF document text
- http://daearesort.com/FileData/ckfinder/files/20210912_539C8D141BD8176A.pdfIn PDF document text
- http://getampedmag.com/ckfinder/userfiles/files/sinud.pdfIn PDF document text
- http://bluebiz.kr/userData/board/file/92278669374.pdfIn PDF document text
- https://booburger.myagenda.cz/pictures/editor/files/vorolafusibatamojovog.pdfIn PDF document text
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/16133441c4d880---47372899021.pdfIn PDF document text
- http://kenzoum.org/home/integrity/public_html/ckfinder/userfiles/files/38520621040.pdfIn PDF document text
- http://toyotaquangninh.org/data/dulieu/files/pixisam.pdfIn PDF document text
- https://history.tlshaa.org.tw/ckfinder/userfiles/files/xesudeninobexowekap.pdfIn PDF document text
- http://hulstcustoms.ru/uploads/files/zanodakezoxogofano.pdfIn PDF document text
- http://vln.nl/files/file/67373801266.pdfIn PDF document text
- https://jhservice.net/imagenes/galeria/files/gurule.pdfIn PDF document text
- http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/d9d182547a075047e3f0079378f23afd/duwowuvewinijuki.pdfIn PDF document text
- http://citra.cl/userfiles/file/91372738350.pdfIn PDF document text
- https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/56beo3r7r0mo8h614t72trjr1v/51903857967.pdfIn PDF document text
- https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/j67ikbj21rbe2r0ifm4poqater/64467229383.pdfIn PDF document text
- https://allcreaturesinc.com/files/files/8812299112.pdfIn PDF document text
- https://www.hkha.com.hk/ckfinder/userfiles/files/46870668359.pdfIn PDF document text
- https://bevillelecomte.com/ckfinder/userfiles/files/38699381282.pdfIn PDF document text
- http://cartopack.be/Images/file/gofumom.pdfIn PDF document text
- http://hndgyl.com/v15/Upload/file/202194556104434.pdfIn PDF document text
- http://sbsedupatti.com/sbsedupatti/userfiles/file/zenutevoxadutimoke.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=what+is+the+meaning+of+pdf+in+englishPDF 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_off0000af38.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF38 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c74f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC74F | 10836 bytes |
SHA-256: e6b90005a82c7ba9be1a8fa36a0a5c5a8d1d778123b03c002a2cdec30d114501 |
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font_02_sfnt_off0000dfec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFEC | 16040 bytes |
SHA-256: c051537587cbfae3227ebcff722c2014c52e7724c4b0731dbc2dcfc82ccdc2f0 |
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