MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with many URLs pointing to potentially compromised websites or disposable hosting. One URL, in particular, is hosted on a compromised CMS upload directory.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 6
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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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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://roberlo.cz/www/files/file/88233077302.pdf In PDF document text
- http://househouse.it/userfiles/files/7562283042.pdfIn PDF document text
- http://dwallacelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/10406742049.pdfIn PDF document text
- http://haciogullari.com/depo/sayfaresim/file/rubarudowoxukobapexoz.pdfIn PDF document text
- http://5thaveseniors.org/userfiles/file/vifozuk.pdfIn PDF document text
- http://islenapuntos.com/campannas/file/9231327862.pdfIn PDF document text
- http://hrt-foto.hu/_user/file/madexijukunu.pdfIn PDF document text
- https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/2a927083f97f3e9c8a4ceaac863931c8/lowijekopugetiwiz.pdfIn PDF document text
- https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/a1a231ca9bd076763a3a29945bfe8b69/7762366437.pdfIn PDF document text
- http://www.gobarging.com/uploads/textareas/file/lutuzitatezazu.pdfIn PDF document text
- http://k12kos.com/ckfinder/userfiles/files/60843973172.pdfIn PDF document text
- http://cnzgks.com/userfiles/file///3324857924.pdfIn PDF document text
- http://dispensapertutti.com/userfiles/files/46309280522.pdfIn PDF document text
- http://alianzablue.com/aym_image/files/lonufoxokenivafuluxiz.pdfIn PDF document text
- http://helloshoppingnepal.com/userfiles/file/rasuko.pdfIn PDF document text
- http://kaies.net/upfiles/210903052109712610vp3jgj.pdfIn PDF document text
- http://dangkydoanhnghiep.org/hinhanh_fckeditor/file/37450309600.pdfIn PDF document text
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/16137fc9b8a330---14267925698.pdfIn PDF document text
- https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/dee99ed29553ad668458f05d444ee752/kozurajatutifisobo.pdfIn PDF document text
- https://tommytest.dish1314.com/data/html_editor/files/jigokifafameninor.pdfIn PDF document text
- http://vanharteyoga.nl/uploads/files/35369845274.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=the+sims+4+mod+apk+for+androidPDF link annotation
- https://cakamuzejs.riga.lv/ckfinder/userfiles/files/gexanufigozafulaj.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_off0000d07d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD07D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e88f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE88F | 18484 bytes |
SHA-256: 288b08d7fc059cc7803ad20cd1c0a86cc7bd2a2f5460310374afada737e2adf6 |
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font_02_sfnt_off000118a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118A0 | 10752 bytes |
SHA-256: 6d4adf17572d63b4f80d03d74b24bbd82b34d48cb1fd89d0f45c7cf9c675cb5c |
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