MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The file contains a link farm pointing to compromised WordPress upload directories and disposable hosting, disguised as a physics book download. This suggests the document is designed to trick users into downloading further malicious content, likely through the embedded URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 6
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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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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://yummyschool.com/_UploadFile/Images/file/92732269649.pdf
- https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/4u46uu2mnh00fteps4jonjp004/58887987445.pdf
- https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160aaa5b475a2d---76714110594.pdf
- http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c29e5431ab4---11852778503.pdf
- http://aliceinformaticasrl.com/user/pages/7095696542.pdf
- http://szyuangang.com/UserFiles/file///9378310765.pdf
- https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b631ec638ff---14109395541.pdf
- https://hashtag.school/userfiles/file/juwurowajemuroje.pdf
- http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1608168c8cb747---75599020927.pdf
- https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/364b79b7c6851a4b2016081616a5b0f1/faxezaj.pdf
- https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/160793c8d5ae3e---lisew.pdf
- http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/ee1524626039059a4f7c391a4c518e77/17024604062.pdf
- https://houstoncoinshow.org/FCKeditor/file/88254644768.pdf
- https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096da88e644f---4059928082.pdf
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/f0c0647ead4cd682bf2043e66b3610c4/50748461134.pdf
- https://ols.lighting/wp-content/plugins/super-forms/uploads/php/files/b2982a7cd3a005d54357a647a693ad50/16007967285.pdf
- http://fautographie.org/images/userfiles/files/30128965693.pdf
- https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/2ce77c12065a25582d3cef179adb5097/zidinujesivigis.pdf
- https://www.ideaklinikbursa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607973650a3c9---22980764502.pdf
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608877f925e25---podinuvirova.pdf
- http://metapolar.hu/tmp/79777951283.pdf
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160702cc2ded1f---zedapawubezaluzumiwufomip.pdf
- http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f1129009d9---mikap.pdf
- https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ec6f582d9b---puseguxuguke.pdf
- http://szao-spb.ru/images/news/file/xagasomilobagosi.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=physics+book+for+neet+pdf+download
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f2f2.bin36befed4a337b65fc7058c29f55d36a8640b5970617c9ce8dbc8e1dd93fb036c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2F2 | 11148 bytes |
font_01_sfnt_off00010cd3.binafc625febd40d501e6f82e93028a9372b3708d297aa4b62290058fb6daa86e6c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CD3 | 17432 bytes |
font_02_sfnt_off00013a3a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A3A | 16792 bytes |
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