MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code within documents. The presence of numerous external URIs, including links to compromised WordPress upload storage and link farms on disposable hosting, strongly suggests a phishing or malware distribution campaign. The ML classifier and ClamAV detection further corroborate the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
Heuristics 7
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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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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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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://cructi.ru/uplcv?utm_term=vector+draw+android PDF link annotation
- http://weilandensemble.nl/ckfinder/userfiles/files/84525202646.pdfIn PDF document text
- https://dukra.sk/editor_uploads/files/nuxaxogomarofexi.pdfIn PDF document text
- https://wisestudentz.com/userfiles/file/biwep.pdfIn PDF document text
- http://mijinmotor.com/fckeditor/userfiles/file/lusozazenamejofuzojilopaf.pdfIn PDF document text
- https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/16133a551e133f---gamatizegowes.pdfIn PDF document text
- http://ksnjl.com/userfiles/files/23811669471.pdfIn PDF document text
- http://celyroknaterase.sk/editor_uploads/system/files/23360396259.pdfIn PDF document text
- http://gunjanjain.com/app/webroot/js/uploads/files/3721918499.pdfIn PDF document text
- http://adec-interiors.net/Uploads/file/27762294341.pdfIn PDF document text
- http://3wsystems.com/shipinc/userfiles/files/7232313380.pdfIn PDF document text
- https://stollerco.com/testingsites/advantage_aviation/assets/media/file/gamudiz.pdfIn PDF document text
- http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/16135a3c83673d---bavedejixanuz.pdfIn PDF document text
- https://sporyolu.com/resimler/files/3380357627.pdfIn PDF document text
- https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/sbde3kv50uqjfs1p61gc5b9nec/petotuvopuzu.pdfIn PDF document text
- https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/1613d36657bc4d---31516633053.pdfIn PDF document text
- http://geologicatoscana.eu/userfiles/files/82618886859.pdfIn PDF document text
- https://mimpisiluman.com/contents/files/wijujivivabevavixitalur.pdfIn PDF document text
- http://richmore.kr/uploadfile/fckeditor/file/zavarenobibezabawunaforuv.pdfIn PDF document text
- https://acp-luxusingatlanok.hu/ckfinder/userfiles/files/pujinoxaleduxuw.pdfIn PDF document text
- http://phatnang.com/media/ftp/file/nizevavugujo.pdfIn PDF document text
- https://soccerauquebec.com/userfiles/file/bexewevajomiva.pdfIn PDF document text
- http://fatamorgana.fr/uploads/assets/file/pifakijitolovuxime.pdfIn PDF document text
- https://stpm-sa.com/userfiles/file/pokafuj.pdfIn PDF document text
- http://studioesflores.pl/obrazy/file/25065527432.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_off0001035b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1035B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011b6d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B6D | 17804 bytes |
SHA-256: 804da58cd69fc874b51c18cbdeb18e9fad5933b99d5d3731de7fa9afe98d35d9 |
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font_02_sfnt_off000149d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x149D2 | 10204 bytes |
SHA-256: a227f9d995bf36d44d22d1f233fe0a740cd8413f7393f54d3362b3f94657a5ba |
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