MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
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 and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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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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://poslovniimenik.net/firme_data/files/nozogowugifadudenud.pdf In PDF document text
- http://bellsazshihtzu.com/clients/878694/File/81849439010.pdfIn PDF document text
- https://thietbiytedaibao.com/media/files/podebuzolitexomuzasis.pdfIn PDF document text
- http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/1609d4728ec7e7---dezexewo.pdfIn PDF document text
- http://jgbt.us/pds/userfiles/files/makazumokumam.pdfIn PDF document text
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bc55d58da8c---zedavodiboregazer.pdfIn PDF document text
- https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/236165c20ce533ed682beff3de7ca14c/momigenolezedoduf.pdfIn PDF document text
- https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/iiiop451g9bh5f6l1ildfkr2di/32508022443.pdfIn PDF document text
- https://www.apartamentselsllacs.com/wp-content/plugins/super-forms/uploads/php/files/3g4vih35o6lopmlhcdjvjv179d/sizefowunaro.pdfIn PDF document text
- https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609417b88ed58---mawim.pdfIn PDF document text
- http://gesundheit-im-blog.de/userfiles/file/fugajobupulewomokewobepa.pdfIn PDF document text
- http://bigsvatcharasith.com/userfiles/file/juvafesuligomik.pdfIn PDF document text
- http://www.yoko-ono.be/images/userfiles/file/72625852191.pdfIn PDF document text
- https://duproject.com/uploadEditor/files/47433345878.pdfIn PDF document text
- http://hyundainhapkhau.net/upload/files/13190310744.pdfIn PDF document text
- https://perfecthospitals.org/FCKeditor/file/jamujidapuretujubegasejir.pdfIn PDF document text
- https://kalyna.ua/sites/default/files/userfiles/file/77431665654.pdfIn PDF document text
- http://1parareunion-club.com/clients/4/48/482fc251494624b09083a87f212a12d7/File/49005895112.pdfIn PDF document text
- http://naturallabs.de/userfiles/file/wukazib.pdfIn PDF document text
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/1609d1ac60f665---somasunume.pdfIn PDF document text
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6c02f563c6---24115243483.pdfIn PDF document text
- http://www.empresasdelimpeza.info/wp-content/plugins/formcraft/file-upload/server/content/files/160c3d17c56720---53441212290.pdfIn PDF document text
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/160ee0f781d502---66711960438.pdfIn PDF document text
- http://fullcolorspandoeken.nl/userfiles/file/76124091719.pdfIn PDF document text
- https://www.ideaklinikbursa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075b1e6628cf---maloxigizi.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=adobe+acrobat+xi+pro+11.0.0+crack+free+downloadPDF 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_off0000f428.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF428 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010c3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C3A | 18256 bytes |
SHA-256: 5205d5a2fcbed26076c869602deaa1b2cf9e40e9f4e6a1d3693186fcc947e56c |
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font_02_sfnt_off00013bea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13BEA | 11088 bytes |
SHA-256: eed6761f0f243665e19d092ca759368a90ef6403b3ea26448345c04de56ebcbe |
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