MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as a phishing trojan and a machine learning classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, many of which point to compromised CMS uploads or are part of a link farm strategy. The primary function appears to be redirecting users to potentially malicious content hosted on various domains.
Machine Learning
- Nyx PDF Classifier malicious score 0.9837
Heuristics 6
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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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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://ngocminhcnc.com/demo_thietbimay_24_7/upload/files/63139524900.pdf In PDF document text
- http://mstreatmentadvances.com/userfiles/files/61157598693.pdfIn PDF document text
- http://archpiudue.com/userfiles/files/podovijavazuwet.pdfIn PDF document text
- https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/ade9c572905ee2c6ab24b7e11a4253bc/pogowiruviporananozonixe.pdfIn PDF document text
- http://knx-shop.ru/admin/ckfinder/userfiles/files/50711393019.pdfIn PDF document text
- http://cabanagarden.hu/editor_up/wufujudugadurotegowenagol.pdfIn PDF document text
- http://yaqeen-eg.com/userfiles/file/pikafavumonivu.pdfIn PDF document text
- https://mintedimages.com/ckfinder/userfiles/files/vegagogade.pdfIn PDF document text
- http://swancentive.com/cote_dor_import/admin/ckfinder/userfiles/files/60244188934.pdfIn PDF document text
- http://thriftstorewebsites.net/flash/thriftstorewebsites.net/file/jurabafelapibikuvaf.pdfIn PDF document text
- http://irk-yoga.ru/upload/files/61281229679.pdfIn PDF document text
- http://nhuaduongnhapkhauaz.org/upload/files/84810814126.pdfIn PDF document text
- http://kuresi-kaitori.com/upload/content_pic/files/rixaganokoliridej.pdfIn PDF document text
- http://bettynblue.com/upload/fck_img/20210903/file/fojojojewoda.pdfIn PDF document text
- http://asorokolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/parogijunefufaxiwazitamu.pdfIn PDF document text
- http://sanmorales.es/userfiles/files/2530720241.pdfIn PDF document text
- http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/161410ce4955f6---95057091262.pdfIn PDF document text
- https://jpjplumbingandheating.com/FCKeditor/file/15867763182.pdfIn PDF document text
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/ep385t252isgoru7ul027bhor7/41280590823.pdfIn PDF document text
- http://indianspringhomes.com/userfiles/files/48064664279.pdfIn PDF document text
- https://jasz-pap.hu/UserFiles/file/88841634913.pdfIn PDF document text
- http://novena99.com/uploads/files/202109030452072134.pdfIn PDF document text
- https://daqing-jewelry.com/uploads/files/202109161900286246.pdfIn PDF document text
- https://greenbins.ca/ckfinder/userfiles/files/beriretajekofigexorawine.pdfIn PDF document text
- http://sportsgarten.com/editorData/file/viwixunagakunumiw.pdfIn PDF document text
- http://ikhmongol.mn/ckfinder/userfiles/files/18488772864.pdfIn PDF document text
- http://pincailight.com/zk/UploadFile/file/2021092007474973499.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=serious+sam+2+game+download+for+androidPDF 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_off0000b74f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB74F | 14976 bytes |
SHA-256: 8d9d3989aba7208047bf01f24db1828f3cc1776540906ccef5d501188d6ec55d |
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font_01_sfnt_off0000dd32.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD32 | 10980 bytes |
SHA-256: 234f05a4c22b2c41e37f4715bab081a85ab2a30b9e367587ce385b29f1e9230e |
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font_02_sfnt_off0000f690.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF690 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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