MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution campaign. The document body, though partially corrupted, indicates a lure related to "kcc computer basic course pdf", likely to trick users into clicking the malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://krisoc.ru/uplcv?utm_term=kcc+computer+basic+course+pdf PDF link annotation
- http://studioambienteterritorio.it/userfiles/files/35446361570.pdfIn PDF document text
- https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/db84124ccf315bb4af4a8cecb01b17e1/9933387787.pdfIn PDF document text
- http://rittenhousereunion.com/clients/a/ad/ad7d26974070b67854a29702aed78614/File/betekabawulofokavused.pdfIn PDF document text
- https://funkydrop.shop/wp-content/plugins/super-forms/uploads/php/files/6f3425720c540e28a44c0e35a1c2a4b2/tubum.pdfIn PDF document text
- https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/c316cfc93ed4c073b0489135f0c2b9d4/lelivewikogireribogebi.pdfIn PDF document text
- https://winston-woodward.com/wp-content/plugins/super-forms/uploads/php/files/2ac1c679a58d5f534f01269d096a0680/zopawuxakid.pdfIn PDF document text
- http://steakclubhn.com/campannas/file/59129365282.pdfIn PDF document text
- https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/dvb7ctnejtmn2lm7ct8k18n4c0/fotavakor.pdfIn PDF document text
- https://alutat.com/data/file/38023463909.pdfIn PDF document text
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b62581e797---xomumakevepakazavodu.pdfIn PDF document text
- https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/deef6a8d2d605a6b2f10eaca4f9a1ed0/56509968929.pdfIn PDF document text
- http://beautyyaurient.com/editor_upload/file/mazuwovawasupage.pdfIn PDF document text
- https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d97b12a29b---nanezasevutuxovukas.pdfIn PDF document text
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/206ffd644cab30313b583e77113e3dfc/30863346045.pdfIn PDF document text
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a8e0db9d3f7---86838927701.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d48d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD48D | 5376 bytes |
SHA-256: f5b5420889fe63db55f1002c4fb3a2f15b62830ecb4abe5329a0d9b998b7dab7 |
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font_01_sfnt_off0000e6ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6BA | 10872 bytes |
SHA-256: 6ef6e23dc0d698f2ef8f29ae733065c9f948c7f179f0697ff431ce1140a63739 |
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