MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. It contains numerous external URIs and links to compromised CMS uploads, indicating a phishing or malware distribution attempt. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://laborke.ru/uplcv?utm_term=multiple+meaning+words+worksheets+middle+school+pdf PDF link annotation
- https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/dc692cd16a584231b28958af06fd406e/63525474022.pdfIn PDF document text
- https://red-adlay.com/upload/files/20082340654.pdfIn PDF document text
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/81fecda6e166b44bb383644075297ae3/16029425347.pdfIn PDF document text
- http://debden.org/userfiles/file/maguwazanevozaxidafu.pdfIn PDF document text
- http://espacioschillout.es/images/admin/file/pigaw.pdfIn PDF document text
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16115bb0c5b847---64019838273.pdfIn PDF document text
- https://reazfarah.com/ckfinder/userfiles/files/piberepotare.pdfIn PDF document text
- http://xn--80aafbkbafwdti1ahihccrg.xn--p1ai/pict/file/pojixenawidavifidesa.pdfIn PDF document text
- https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/b37922a19df70059e0d340af9084493a/tizipulikinalaj.pdfIn PDF document text
- http://vietsaovang.com/uploads/userfiles/file/12841007145.pdfIn PDF document text
- https://raljob.com/userfiles/file/xoxopepavaxarikekuj.pdfIn PDF document text
- https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609c3baddae4c---1465570513.pdfIn PDF document text
- http://ukwoodrecycling.com/userfiles/files/depenikugaxozuzixutirim.pdfIn PDF document text
- http://matraholding.hu/images/userfiles/files/37925875746.pdfIn PDF document text
- http://anpo.vn/upload/files/73561039395.pdfIn PDF document text
- http://sriagasthiyarastro.com/FCKeditor/userfiles/file/sebofutujupum.pdfIn PDF document text
- https://samoinstitute.mn/uploads/assets/file/jomevidabekik.pdfIn PDF document text
- http://yaqeen-eg.com/userfiles/file/445458848.pdfIn PDF document text
- https://daotaolaixesontay.com/uploads/file/vixavusit.pdfIn PDF document text
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087894919d31---jolup.pdfIn PDF document text
- http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a439c587db7---wigobeme.pdfIn PDF document text
- http://americasbestmanassas.com/uploads/files/nulakatidobowaluz.pdfIn PDF document text
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/160af41b5879b4---92867256538.pdfIn PDF document text
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16094e7e27ff76---medanos.pdfIn 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://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_off0000b450.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB450 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cc62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC62 | 14756 bytes |
SHA-256: e8cb6e6c5be1638516426c5bc50391262e6b106b6091933b1dac0d5ac3f9151d |
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font_02_sfnt_off0000f155.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF155 | 11340 bytes |
SHA-256: 340648c32d456433243ae7d9bebd98d80a955235859222da1f2fd344a3216164 |
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