MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious. It contains embedded JavaScript and a large number of external URIs, many of which are likely part of a link farm designed to redirect users to malicious sites. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic and the sheer volume of unknown URLs suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 7
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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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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://togelunited4d.com/contents/files/33913945899.pdf In PDF document text
- http://cga82.com/admin/File/migijemadivudadoneninuve.pdfIn PDF document text
- https://zzhqhi.com/d/files/42295603269.pdfIn PDF document text
- http://skncn.com/u/files/nodulosogatadew.pdfIn PDF document text
- https://moraure.net/js/ckfinder/userfiles/files/muwafadofaxopegugubid.pdfIn PDF document text
- http://aaas.handyfriendship.com/upload/files/25157135576.pdfIn PDF document text
- http://vincitydata.com/uploads/ckfinder/files/53521628997.pdfIn PDF document text
- http://geostudio.eu/userfiles/files/99285524066.pdfIn PDF document text
- http://w-f-l.de/user_img/file/89521118879.pdfIn PDF document text
- http://hzbmsj.com/images/upload/File/befemo.pdfIn PDF document text
- http://stagegator.scorchmark.com/stagegator/ckfinder/userfiles/files/35105132818.pdfIn PDF document text
- https://www.q-jin.ne.jp/ckfinder/userfiles/files/siguguzinoguvorefijuxak.pdfIn PDF document text
- https://aslimitada.com/userfiles/file/68936910171.pdfIn PDF document text
- http://promocode.lu/userfiles/files/66316750246.pdfIn PDF document text
- http://izmirtavla.com/upload/file/32945713267.pdfIn PDF document text
- https://dienlanhhonganh.com/images/pic/file/dovatijaf.pdfIn PDF document text
- http://faurau.com/luodan/images/userfiles/file/vevurenuwupelatiwum.pdfIn PDF document text
- https://oglethorpeclub.org/~oglethor/UserFiles/file/47792510586.pdfIn PDF document text
- http://bacsionline.net/userfiles/file/33813567794.pdfIn PDF document text
- http://ccsl.asia/files/55308430396.pdfIn PDF document text
- https://myphambambi.com/webroot/img/files/37378953615.pdfIn PDF document text
- http://teranor.com/ckfinder/userfiles/files/navisisirupoxatarumewiran.pdfIn PDF document text
- https://www.zochrot.org/ckfinder/userfiles/files/74642600858.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=rise+of+kingdoms+hack+iosPDF 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_off0000ba61.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBA61 | 16700 bytes |
SHA-256: e472dacc6ea117805411c3d695518515acd712abdae36804efeed4506f6613d7 |
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font_01_sfnt_off0000e4ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4EF | 10816 bytes |
SHA-256: e678139683e2cadd129c96b3912d60fff279f1368355b399c0579a005252b918 |
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font_02_sfnt_off0000fd82.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD82 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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