MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document was flagged by a machine learning classifier and ClamAV as malicious, indicating it likely exploits a vulnerability to execute code. The presence of numerous external URIs, many pointing to PDF files on distinct hosts, suggests a link farm designed to distribute a payload. The URL containing 'download windows loader' further supports the intent to trick users into downloading malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 5
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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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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 https://bosingels.nl/ckfinder/userfiles/files/20964385677.pdf In PDF document text
- http://szerecsengyogyszertar.hu/editor_up/fevakogipejituxuwafil.pdfIn PDF document text
- http://seanbittinger.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/27657689099.pdfIn PDF document text
- http://pnlestari.com/visitbali/image/files/89874785315.pdfIn PDF document text
- https://qualityroofinnandsuites.com/nbloom/fckuploads/file/kevumevazawikego.pdfIn PDF document text
- http://stjconsulting.it/userfiles/files/dagidumowegobidepizu.pdfIn PDF document text
- https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/16134ed3ec964b---deposuvojutanuli.pdfIn PDF document text
- http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613067e8c5e2a---47931074584.pdfIn PDF document text
- https://machnhaduong.com/images/uploads/files/44608643438.pdfIn PDF document text
- http://dezis.ru/uploads/files/wuvemimorabet.pdfIn PDF document text
- http://hsaltsj.com/uploads/files/51923196020.pdfIn PDF document text
- http://agataklimowska.pl/userfiles/file/53213902003.pdfIn PDF document text
- http://ng-sons.com/userfiles/file/nepin.pdfIn PDF document text
- http://inercial.es/uploads/files/rutiduvivavamijadi.pdfIn PDF document text
- http://emeraldcovepartners.com/_data/images/file/biwurijobigovux.pdfIn PDF document text
- http://ahzgbh.news-read.com/upload/files/wurogojiwogovoj.pdfIn PDF document text
- http://panhongbo.com/ckfinder/userfiles/site_eachfun_com/files/90914408396.pdfIn PDF document text
- http://kppzp.pl/userfiles/file/47248286810.pdfIn PDF document text
- http://notariocprietoa.com/notaria/documentos/files/89995194461.pdfIn PDF document text
- http://zwickerfoto.hu/_user/file/nejakaliv.pdfIn PDF document text
- http://szzxwx.com/Upload/Upload/file/202196239475829.pdfIn PDF document text
- http://fukaofoods.tw/uploads/files/202109120035055012.pdfIn PDF document text
- http://sooclose.eu/upload/File/nemosilomedorepukazawato.pdfIn PDF document text
- http://mea-travel.pl/userfiles/file/dezevezijurufarejoposa.pdfIn PDF document text
- http://tlxzkj.com/uploads/file/11162515725.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=download+windows+loader+for+windows+7+32+bitPDF 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_off0000e827.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE827 | 10916 bytes |
SHA-256: 158b1dee399da839b4371049d394839611f1ef16652108bd7bbc81ab454f4ba6 |
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font_01_sfnt_off000101bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101BF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000119d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119D1 | 17416 bytes |
SHA-256: 028c7f9e18e020d564de112799b32001ad7df195610feb785c75357d577359b3 |
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