MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a link farm. It contains numerous embedded URLs, many pointing to potentially malicious PDF files, and one heuristic specifically flagged it as a link farm on disposable hosting. The document body is heavily obfuscated and unreadable, suggesting it's not intended for direct user interaction but rather to host links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 http://mebel-moscow.com/content/xuploadimages/file/woxajasixinetogutuji.pdf In PDF document text
- http://blccy.com/userfiles/files/toxed.pdfIn PDF document text
- https://www.auto-ecole-acm.com/ckfinder/userfiles/files/somaxopokowefasisiboruf.pdfIn PDF document text
- http://dcbestwings.com/uploads/files/junugowazawifibe.pdfIn PDF document text
- http://dharkaninternational.com/survey/userfiles/files/93399564359.pdfIn PDF document text
- https://livredart.com/ckfinder/userfiles/files/28400079784.pdfIn PDF document text
- http://i-physiology.ru/upload/maxivox.pdfIn PDF document text
- http://jungvassar.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/21767394998.pdfIn PDF document text
- https://gamepinleri.com/calisma2/files/uploads/69748683899.pdfIn PDF document text
- http://rm-centr.ru/uploads/file/90206527262.pdfIn PDF document text
- http://tcsklife.com/filespath/files/20210910222059.pdfIn PDF document text
- https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16134437a4eb80---78464894467.pdfIn PDF document text
- http://csc0311.com/userfiles/file/20210921051255_bgl3a8.pdfIn PDF document text
- http://yarpb.ru/pic/userfile/64723549569.pdfIn PDF document text
- https://imihwa.com/uploads/image/20210901/files/20210901211709.pdfIn PDF document text
- https://websbag.com/uploads/files/4764101907.pdfIn PDF document text
- http://onlinecommerce.bg/uploads/pages/files/1859536385.pdfIn PDF document text
- http://ifap.it/images/file/foxowejetixu.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161328f3a35f15---nevebotobizavuruwes.pdfIn PDF document text
- http://massiimo.com/piceditor/file/parerovo.pdfIn PDF document text
- http://shengnabei.com/uploadfile/file///2021091203270624.pdfIn PDF document text
- http://www.darvidproperty.com/news/file/42693467585.pdfIn PDF document text
- https://hongmao.tw/uploads/files/202109100406236077.pdfIn PDF document text
- https://seeandhearbetter.ie/img/shop/contents/nuvoketapisog.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=albion+brisbane+postcodePDF 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_off0000bb9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB9E | 10628 bytes |
SHA-256: d27e86b2ab026928f94874771d85c919f7e775c5e80b95e7671c242f896ee34d |
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font_01_sfnt_off0000d3d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3D0 | 17576 bytes |
SHA-256: 893414f069b2feb8689eea370702071f9ae32e4a5926faf381652bdd607cdfef |
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font_02_sfnt_off000101f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101F8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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