MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The sample was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Several heuristics point to the PDF being a link farm on disposable hosting, with one URL specifically identified as a potential lure for 'office suite apk'. The document body is heavily obfuscated, preventing a clear understanding of its direct content, but the presence of numerous external links and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9829
Heuristics 5
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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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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://phukientubepxinh.info/gomsu/sanpham/anh/files/xinunakejuzegutup.pdf In PDF document text
- http://www.trackls.com/application/ckeditor/ckfinder/userfiles/files/nowetoxumipuxomabivazo.pdfIn PDF document text
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16131949ee6817---ziwar.pdfIn PDF document text
- http://specialcats.nl/media/files/zedoj.pdfIn PDF document text
- https://dursunguney.com/userfiles/files/46380830797.pdfIn PDF document text
- http://wsm.hk/images/uploadfiles/file/zuvojometixizi.pdfIn PDF document text
- https://euro-m.si/web/dokumenti/file/lazefularodizejosibokib.pdfIn PDF document text
- http://www.egymast-segito.hu/uploaded/fck/file/mobagipelokotisunugeji.pdfIn PDF document text
- http://wlpp.net/images/blog/file/zibinudalejotutena.pdfIn PDF document text
- http://systemsbiology.at/uploads/assets/file/24965354586.pdfIn PDF document text
- http://libertyquad72.fr/userfiles/file/jezowefarojipedajeta.pdfIn PDF document text
- https://www.tocbirsen.org.tr/ckfinder/userfiles/files/15596212146.pdfIn PDF document text
- https://cargobull.cz/res/file/65489109548.pdfIn PDF document text
- https://promptcorporate.com/ckeditor/ckfinder/userfiles/files/libudokefobuxamatawot.pdfIn PDF document text
- http://werkkledingverkoop.nl/images/docman/files/rajonatafubi.pdfIn PDF document text
- http://spbi.cz/res/file/bevuvewutaw.pdfIn PDF document text
- http://eamenfaraz.com/cache/fck_files/file/3632966021.pdfIn PDF document text
- http://bridgeonlaw.com/filespath/files/20210910072434.pdfIn PDF document text
- https://www.esfa.bg/root/ckfinder/userfiles/files/53403796723.pdfIn PDF document text
- https://clinicscrm.com/img/files/kaxegiberujedijadi.pdfIn PDF document text
- http://carbonelite.ru/file/rororuvok.pdfIn PDF document text
- https://mallorcaboom.com/res/wysiwyg/file/kuzoxitivusutugaw.pdfIn PDF document text
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/161354ba236e75---vowaweg.pdfIn PDF document text
- http://ihdbd.org/upload/files/67584370563.pdfIn PDF document text
- http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613910836d61a---vokugozeminakabisenef.pdfIn PDF document text
- http://egitara.com/upfiles/files/mukuxuti.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=office+suite+apkPDF 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_off0000ca78.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA78 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e28f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE28F | 10320 bytes |
SHA-256: bd641c8474f74af047a2b3d6bf54cb104dfe65c05d37bd384ad53290da035350 |
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font_02_sfnt_off0000fa18.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA18 | 18360 bytes |
SHA-256: 35aa38277bbba0d27e67ca195acdfd689ae3a9fd1968272b6deb45740b12ecc1 |
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