MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body, though heavily obfuscated, appears to be a lure related to academic materials.
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://huntic.ru/uplcv?utm_term=all+formulas+of+maths+class+10+icse+pdf PDF link annotation
- https://eatorhours.org/e-bussiness/fckimages/file/gozokumonelew.pdfIn PDF document text
- https://wfca-czech.cz/temp/userfiles/files/jonup.pdfIn PDF document text
- http://sungsam.net/userData/board/file/purizusozaguvame.pdfIn PDF document text
- http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/7b87bcadebea8e0f3208a3ec2816a30b/xafegemamimileseso.pdfIn PDF document text
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077ec56383e4---83981239008.pdfIn PDF document text
- https://makemycake.gr/wp-content/plugins/super-forms/uploads/php/files/vlfjhcb8qilrardfqij2jitkfb/70640877683.pdfIn PDF document text
- https://www.waterlooarmsnewforest.co.uk/wp-content/plugins/super-forms/uploads/php/files/76f1d329062a0d62d329ac90a64d82b6/raverudene.pdfIn PDF document text
- http://richmediahouse.com/admin/uploads/file/tiwigevutinigukezunekikeb.pdfIn PDF document text
- https://vansuloi.com/uploads/userfiles/file/60646233354.pdfIn PDF document text
- http://charivne.info/images/file/buxinunu.pdfIn PDF document text
- https://area34.info/wp-content/plugins/super-forms/uploads/php/files/v7gvq9fa91jpr37kid7597rsg3/15198201943.pdfIn PDF document text
- http://valaptop.com/ImagesVA/file/bodijoxevimupunelagubu.pdfIn PDF document text
- http://tingyi-bnb.com/CKEdit/upload/files/70536440378.pdfIn PDF document text
- http://pvsystexperts.com/wp-content/plugins/super-forms/uploads/php/files/3fusrb1t9g3dk18mkq4kj5aa71/kefesobakixitujeve.pdfIn PDF document text
- http://zzliuxue.com/upfile/file/%5C/navategodefuzitob.pdfIn PDF document text
- https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/s1g13cnfhpm40tkah4dbui6j4d/32953561767.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
- 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_off0000f353.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF353 | 5580 bytes |
SHA-256: 8198acd924931e0d2e2b66129f8e13d65dff64f1e72b09b56201dca7cbef068f |
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font_01_sfnt_off00010624.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10624 | 11096 bytes |
SHA-256: d7e1310e731ea2bed7948f50a3c19e77e62ea486115804e1e192e8dd4ef646c1 |
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font_02_sfnt_off00012c1d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C1D | 16096 bytes |
SHA-256: 3a87a2a80cb0740ff7ad33dbd9b35031d90241dfccc5ab96a3d2c3133af9c3ca |
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