MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous external URIs, with a significant number pointing to disposable hosting and employing UTM parameters, characteristic of link farms used for phishing or malware distribution. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically highlights this behavior, suggesting the document's primary purpose is to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://coretry.ru/uplcv?utm_term=fluid+mechanics+white+6th+edition PDF link annotation
- https://vanvoorst.info/uploaded/file/57374970279.pdfIn PDF document text
- https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/2769414ff67ccacff3cb1faefac2fd73/mixigixen.pdfIn PDF document text
- http://scbczy.cn/up_files/file/20210915_201829.pdfIn PDF document text
- https://hoangvan.vn/wp-content/uploads/files/53425422637.pdfIn PDF document text
- http://xn--80aaeiengkwpz6p.xn--p1ai/pub/file/kawakupepivivowotovaxatek.pdfIn PDF document text
- http://omatsuri.kr/data/userfiles/files/42476412817.pdfIn PDF document text
- http://kantipursecurity.com/userfiles/file/tejijunamixupunise.pdfIn PDF document text
- http://philipwillettelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/foguxebebukodurafifidulu.pdfIn PDF document text
- http://storemisr.com/uploads/files/9131505179.pdfIn PDF document text
- http://ayhancevik.com/images_upload/files/15831304955.pdfIn PDF document text
- https://tessuno.com/upload/files/61377b81dd6c7.pdfIn PDF document text
- http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/16139d2c7cd1b6---buzenum.pdfIn PDF document text
- http://canyonoaksmtg.com/~duckdi5/canyonoaksmtg.com/content/file/melorepisefufazowep.pdfIn PDF document text
- http://baovekhucongnghiep.com/upload/files/wapofejanisawifiwakufuwe.pdfIn PDF document text
- http://leaguengn.com/userfiles/file///sepotez.pdfIn PDF document text
- http://npxbyy.com/wang3_3_10_27/Upload/Upload/file/2021911109142487.pdfIn PDF document text
- https://autosaloncenter.com/uploads/file/sujuvejoteketa.pdfIn PDF document text
- http://onlinetalk.jp/app/webroot/img/fckfiles/file/sozudumizewulem.pdfIn PDF document text
- https://istanajp.net/contents/files/46760512557.pdfIn PDF document text
- https://milsagliksen.org/upload/ckfinder/files/boxetepipaxesureno.pdfIn PDF document text
- http://gamboeng.com/assets/ckfinder/userfiles/files/bobuxu.pdfIn PDF document text
- https://congthuonghotel.vn/app/webroot/files/images/pages/files/51010724648.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_off0000d1fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1FD | 10868 bytes |
SHA-256: f1fda6197dd7c8e5448ce1b330d0a135c950a99e8826ac38eeb61a77e9a113d5 |
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font_01_sfnt_off0000eaf5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAF5 | 17872 bytes |
SHA-256: 05502499382a665d1df5dd007858f8e28b506983eec3d17a03caecd7a7ccbdcf |
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font_02_sfnt_off000119aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119AA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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