MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing or trojan. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the document is designed to host numerous links on disposable domains, a common tactic for phishing or distributing further malware. The presence of embedded URLs, such as https://oniceh.ru/uplcv?utm_term=outlook+for+android+help, further supports the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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://oniceh.ru/uplcv?utm_term=outlook+for+android+help PDF link annotation
- https://www.fangjin.org/ckfinder/userfiles/files/43278816218.pdfIn PDF document text
- http://dh-life.com/ckfinder/userfiles/files/peziwezugi.pdfIn PDF document text
- http://tienphat.vn/imagesflashupload/file/9124253259.pdfIn PDF document text
- https://nayyaralidada.net/alpha/ckfinder/userfiles/files/fabuko.pdfIn PDF document text
- https://episcopiaoradiei.ro/files/37333064494.pdfIn PDF document text
- http://kleinschadenexperte.com/userfiles/file/88236799377.pdfIn PDF document text
- http://www.trisad.kz/ckfinder/userfiles/files/48686173501.pdfIn PDF document text
- https://optimuselearningschool.aels.edu/learning/site/images/uploadfiles/kibupekasiba.pdfIn PDF document text
- https://rimi.sk/userfiles/file/31005965494.pdfIn PDF document text
- https://weilaimachinery.com/userfiles/files/kopikinodotirenu.pdfIn PDF document text
- http://duhochoangthanh.com/upload/files/2529986798.pdfIn PDF document text
- http://architettosirocco.it/userfiles/files/70979778203.pdfIn PDF document text
- https://kentacademymiango.com/userfiles/file/zakasojumu.pdfIn PDF document text
- https://sakkestadbil.no/userfiles/file/wesiromasafogila.pdfIn PDF document text
- http://35ct1.com/images/ckImageFiles/files/53651440171.pdfIn PDF document text
- http://mamolenasnc.it/userfiles/files/jozidok.pdfIn PDF document text
- http://smartickgroup.com/userfiles/1565035580.pdfIn PDF document text
- https://dalnoboy.com/data/filestorage/upload/files/bemubarepimowilolefarena.pdfIn PDF document text
- https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/bi6rabct3qfecgd7ttk2atnj1r/rolixibebekudijijipemiju.pdfIn PDF document text
- http://fuhua.tumujike.com/assets/upload/files/202109180345484192.pdfIn PDF document text
- https://zibarajabi.com/cache/fck_files/file/bixipetuperizekoritutezoz.pdfIn PDF document text
- http://ephtour.com/FileData/ckfinder/files/20210909_7726173CE71A7798.pdfIn PDF document text
- http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147d0bc49d04---70371124153.pdfIn PDF document text
- http://graylegalservices.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lomefojanek.pdfIn PDF document text
- http://holzbau-napetschnig.at/14283357056.pdfIn PDF document text
- http://montpellier-businessplan.eu/mbp/upload/images/images/upload/ckfinder/padapamipodi.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_off0000d752.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD752 | 17212 bytes |
SHA-256: ddea4820fa142e5b893e9b059919a8f132bba8a97bb0644e62e3d5a2170e94c9 |
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font_01_sfnt_off000103a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103A8 | 10644 bytes |
SHA-256: 97c51cfcd290752425a99df462674f96db5afe7735a75a2ed2025a82ca336f52 |
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font_02_sfnt_off00011bf1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BF1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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