MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It contains a link farm pointing to compromised CMS upload storage and disposable hosting, suggesting an attempt to distribute malicious content. The presence of embedded URLs and the nature of the heuristics indicate a likely phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 7
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://hattoco.vn/images/ckeditor/files/sexekivirowopozapi.pdf In PDF document text
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607a6d1a52cfd---6877456662.pdfIn PDF document text
- http://ucinnovation.ru/admin/ckfinder/userfiles/files/vixabaxumobabupejukenufi.pdfIn PDF document text
- http://transcash.com/ci/userfiles/files/55238200571.pdfIn PDF document text
- http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dbb1438f070---66107624433.pdfIn PDF document text
- https://www.llgnjinc.com/wp-content/plugins/super-forms/uploads/php/files/242835d9095597143c9659680294cdd3/vepekudiv.pdfIn PDF document text
- http://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160725554e28c6---82097437544.pdfIn PDF document text
- https://electrabicycles.pl/app/webroot/uploads/file/16204554909259.pdfIn PDF document text
- https://mmszke.hu/files/file/6752305292.pdfIn PDF document text
- https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/otfqh4lt9d85v78kh8o66vson0/nesisizepizasepeberazul.pdfIn PDF document text
- https://villanakarin.com/userfiles/files/binirazi.pdfIn PDF document text
- http://bygreenpure.com/userfiles/file/98898477958.pdfIn PDF document text
- http://geomanteia.com/userfiles/files/46316566605.pdfIn PDF document text
- https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160a4c13467dc0---mobabirelube.pdfIn PDF document text
- http://unnatiwelfareorganization.com/ckfinder/userfiles/files/8319965276.pdfIn PDF document text
- https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d29b4072a5c---dedosademijodamizebasujim.pdfIn PDF document text
- http://ratchee.com/ckfinder/userfiles/files/migatasonijilipiwobaj.pdfIn PDF document text
- http://smartraoptics.com/fck_filemanager_upload/file/fidelebiwafubiraromejefa.pdfIn PDF document text
- http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/l969empqk18h1785f9rvtjv0f6/76103729068.pdfIn PDF document text
- http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608711944bbdd---wigaxumuvos.pdfIn PDF document text
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/c29615ba5638939f1651ed7a31cac787/damolemuvomujomebapo.pdfIn PDF document text
- http://hccc252.ca/clients/e/e4/e484b38507f190a955b66748903449e1/File/30677865805.pdfIn PDF document text
- https://ahreco.com/uploads/news_file/91464277277.pdfIn PDF document text
- http://sieuthicayxanh.vn/webroot/img/files/merewopot.pdfIn PDF document text
- https://hijaulumut.com/contents/files/wufozaresesizo.pdfIn PDF document text
- https://movesforfree.com/wp-content/plugins/super-forms/uploads/php/files/mb4i8d0qbku2su77mhsc428ul0/87881359929.pdfIn PDF document text
- https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/037f7858b5062bb54aa1803f2f6e0390/43335426366.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=mba+financial+management+question+papers+with+answersPDF 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_off00010b39.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B39 | 11392 bytes |
SHA-256: 536c4c4b6d6c395b5e05d0fcc95d546f8ce2da0cfa94a960ea27d3ac6c90c378 |
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font_01_sfnt_off0001257d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1257D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013d8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D8F | 19596 bytes |
SHA-256: 385671ff275310aa9acaef1c1c69e0f81395e7f6ac75dea13916da3dbf57ca14 |
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