MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF document that contains embedded JavaScript and multiple external links, some of which point to compromised WordPress sites. The presence of a visual download button lure, combined with the ML classifier and ClamAV detection, strongly indicates a malicious intent to trick users into downloading a secondary payload. The embedded JavaScript likely facilitates the download and execution of this payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 8
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://www.euro-fly.eu/userfiles/files/sodarizuxigofajizedowo.pdf In PDF document text
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160941d096fb85---nojemurinez.pdfIn PDF document text
- http://quangcaosms.org/media/ftp/file/38464095230.pdfIn PDF document text
- https://raiporjai.com/piceditor/file/rawitadavi.pdfIn PDF document text
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a001a50ff20---48937741051.pdfIn PDF document text
- https://fobh.net/userfiles/files/nudupurelesorobalavujegun.pdfIn PDF document text
- https://pakistanchristiancongress.org/userfiles/file/84378830777.pdfIn PDF document text
- http://sllight.ru/design/img/upload/file/tozilanigilufowenogi.pdfIn PDF document text
- http://novichiha.ru/pic/file/wuvazelogovubamaviloron.pdfIn PDF document text
- https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/805b6c8962603c2ea6ae52b84d73d2a2/5549678178.pdfIn PDF document text
- https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fd55e403bb---45242400080.pdfIn PDF document text
- http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/1609cc1f9765bb---miponusonikosa.pdfIn PDF document text
- https://banderlogclub.ru/Files/file/39839837868.pdfIn PDF document text
- http://statewideroadservices.com/clients/879378/File/rojedofuxadofolelaruleved.pdfIn PDF document text
- https://lacecinella.com/writable/public/userfiles/file/mukavive.pdfIn PDF document text
- http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607af614a5d1f---57120487800.pdfIn PDF document text
- http://hanhthien.net/uploads/file/22182733456.pdfIn PDF document text
- http://symbioticlifetech.org/attfile/fckimg/file///20210520102743_768397392.pdfIn PDF document text
- http://www.mueblesgamez.com/ckfinder/userfiles/files/4912648410.pdfIn PDF document text
- https://biomedchita.ru/imeg_master/file/nabulajomuselusavut.pdfIn PDF document text
- https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/p9ogma7eit77vq1stk4l8ml7c7/bafumodejuxajadoxop.pdfIn PDF document text
- http://westernstudioservice.com/admin/userfiles/file/2285337591.pdfIn PDF document text
- http://lexus-custom.com/js/upload/files/sepemad.pdfIn PDF document text
- http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/a7a086e46fb1fbdcb023da2aeaaad5ac/pixitavogupasevilexeruj.pdfIn PDF document text
- http://gps-tw.com/CKEdit/upload/files/99422010574.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=rabb+da+radio+2+full+movie+download+hd+480pPDF link annotation
- 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_off0000c6b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6B3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000deca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDECA | 11460 bytes |
SHA-256: 043beb530767f5dec0db5b6a3bccdba8b9561baaecf39063e3d4dfb4d851237f |
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font_02_sfnt_off0000f987.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF987 | 16416 bytes |
SHA-256: e50c6b661d72732e5f31d78b824ed639347e6aa694efd1a505522bbbf683b252 |
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