MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate the document functions as a link farm, with numerous URLs pointing to potentially compromised WordPress sites. These links likely serve to redirect users to malicious destinations for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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 http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16071b2e5aa074---gewego.pdf
- https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/047fe429047d5b9aecd5a837d86b3460/givope.pdf
- http://devison-matras.com/upload/file/54766212737.pdf
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073e1bfb0a9f---7044822402.pdf
- https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/2dd8792811935c9742a9092f60f1919b/9561691729.pdf
- http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16095eecec6b2c---xegofanelenanaxive.pdf
- http://studiomanzella.com/userfiles/files/78057286128.pdf
- https://hkbca.org/UploadFiles/file/20210625194306141.pdf
- http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb2681dde7---76206444470.pdf
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/6a11c57cbb013d786d6d2614e28b74bf/96185485947.pdf
- https://hgb.se/filer/file/xejirelazapiwijo.pdf
- http://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160838ea8294dc---wiredeva.pdf
- http://valeneighbors.com/userimages/95817862775.pdf
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/8d4hsilj6la5qg88lm381kdgvi/wuxodobakidaruwadonavug.pdf
- https://heykidsletscook.info/wp-content/plugins/super-forms/uploads/php/files/cd418fa7da9b643e7ea46c2af078aace/zugaz.pdf
- http://anaminfo.com/attachfile/file/jegezi.pdf
- http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c658bc0721f---lezanubepumixo.pdf
- http://braciszewska-klimek.pl/fck_files/file/67113573489.pdf
- https://www.varishastalari.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088336fb00e0---91875444823.pdf
- http://menloathertonhigh1980.com/clients/6/6f/6f83464fe0b13873896cace574d4baa5/File/99087143736.pdf
- http://ty6600.com/userfiles/file/18628407522.pdf
- https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cfae003184---taneboz.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=android+1+real+racing
- http://e1pl2.nazwa.pl/busy/fotki/file/38801102092.pdf
- 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_off0000f72a.bin70e7039142b6fbae684c44364a0f5ce0525b29f5cfcf6868643f5a5ede3c61ba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF72A | 16856 bytes |
font_01_sfnt_off000122fe.bin8b623bf1da5edb589e978fe0152b1c19096d70ab7da33c82c858d2564653b18a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122FE | 10312 bytes |
font_02_sfnt_off00013a21.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A21 | 16792 bytes |
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