MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories, presents a deceptive download button and contains embedded JavaScript. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 8
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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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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://pallenberg-busreisen.de/uploads/files/kilazilubejum.pdf In PDF document text
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/f8cce1cb5f56ced8f539292a8c1ddd1b/17697814291.pdfIn PDF document text
- http://cuacuongiare.vn/upload/files/44085460223.pdfIn PDF document text
- http://fautographie.org/images/userfiles/files/bifopuvimufujilane.pdfIn PDF document text
- https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/d5a48ddefbc5afd09f77c2ffb2300d4c/43813996084.pdfIn PDF document text
- https://dubaimotorcycletours.com/uploaded_images/files/garikepuf.pdfIn PDF document text
- http://matchedtubes.de/userfiles/file/nemikedixafelu.pdfIn PDF document text
- https://tarzminder.com/resimler/files/soraminizimumozimarow.pdfIn PDF document text
- http://studiomontironi.eu/userfiles/files/86724582830.pdfIn PDF document text
- http://www.lifestaralberta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608431525bce6---93810367235.pdfIn PDF document text
- http://chaukitchen.com/uploads/files/96627966126.pdfIn PDF document text
- https://mziagroup.com/wp-content/plugins/super-forms/uploads/php/files/ddr7irqf39q99c0lkma06dcbd9/wunajegipuzuwagivuri.pdfIn PDF document text
- http://altelaw.com/uploads/image/file/genifuvawujot.pdfIn PDF document text
- http://henca.com/files/details/file/13005653407.pdfIn PDF document text
- http://hgbs.de/userfiles/file/betokebovaka.pdfIn PDF document text
- http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca60ead07d---vazowubofexupefirejowiz.pdfIn PDF document text
- https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/3ffba517988e5e0e40e649b1f477e56d/lulowu.pdfIn PDF document text
- https://jkmart.net/FCKFiles/File/debakijeduxepawozi.pdfIn PDF document text
- http://morecoredesign.com/images/imageUps/files/xavafosujore.pdfIn PDF document text
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/1f5fa963175d81d9f2f0f9bb4fca38e9/rifikamaxulena.pdfIn PDF document text
- https://ruta.hu/ckfinder/userfiles/files/xuzumutojipuvujeraro.pdfIn PDF document text
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f9ac2685c4---rasukelojoxonomekovarixod.pdfIn PDF document text
- http://1137.jp/app/webroot/js/ckfinder/userfiles/files/478877033.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=to+do+list+printable+pdfPDF 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_off0000e1c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1C8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f9da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9DA | 17176 bytes |
SHA-256: 104031e8defd16f52611fdb68050b591c8968db60a2a85df39a5e0294bf7c378 |
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font_02_sfnt_off0001262e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1262E | 10596 bytes |
SHA-256: a03eefd5a9ea4225c215ac926118be496a7f1df7914cc7cba35e4f284c490f21 |
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