MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The presence of embedded JavaScript and numerous external links, many pointing to disposable domains, suggests a phishing or malware distribution attempt. The document body is heavily obfuscated, preventing a clear understanding of its specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://uniradioweb.info/userfiles/file/93280145366.pdf In PDF document text
- http://marinda.ru/pics/images/file/92332454313.pdfIn PDF document text
- http://szwygs.com/upload/74933477713.pdfIn PDF document text
- http://architettosbaffo.com/userfiles/files/58132742780.pdfIn PDF document text
- http://solarhomepage.ch/fckeditor/editor/images/file/20707244300.pdfIn PDF document text
- https://mobile-translator.eu/app/webroot/media/files/99763168501.pdfIn PDF document text
- https://quangcaonoithatgiahung.com/admin/webroot/upload/image/files/75930573887.pdfIn PDF document text
- https://yunglin.com/uploadpic/files/37159435545.pdfIn PDF document text
- https://3rproject.eu/ckfinder/userfiles/files/92206279812.pdfIn PDF document text
- http://donaldnathanlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xisutegedavuwaduse.pdfIn PDF document text
- http://nguoiquangphianam.com/uploads/files/zariveruragibefomuf.pdfIn PDF document text
- http://garageanything.com/js/upload/files/jelebunamodevagi.pdfIn PDF document text
- http://truhlarstvisollner.cz/data/file/gadagawenibuxotudotin.pdfIn PDF document text
- https://kungfuclasshongkong.com/louis/taichi/ckfinder/userfiles/files/61013011118.pdfIn PDF document text
- http://nadiadsa.org/userfiles/file/51477493333.pdfIn PDF document text
- http://osteriadelcampanile.com/userfiles/files/kekowoz.pdfIn PDF document text
- http://divorcefinance.nl/uploads/file/xojugeso.pdfIn PDF document text
- http://csc0311.com/userfiles/file/20210906005034_m61g1x.pdfIn PDF document text
- http://vo23.ru/upload/file/36797013545.pdfIn PDF document text
- http://upsshop.ru/ckfinder/userfiles/files/lafuvibivopagivu.pdfIn PDF document text
- http://canadianartistic.com/userfiles/file/73720485312.pdfIn PDF document text
- http://jpsacademy.com/slbdavbatala/userfiles/file/dubezajasozufurezifal.pdfIn PDF document text
- http://honyi.tw/ckfinder/userfiles/file/nexutilamuwo.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=tamilrockers+2019+movie+download+hd+tamilPDF link annotation
- https://rt9.rspo.org/ckfinder/userfiles/files/39831483893.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_off0000e45d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE45D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fc74.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC74 | 11304 bytes |
SHA-256: 0585da97df8342e80bd6878bafd7dd83d78170f9f519f300ffa4bd0668e40345 |
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font_02_sfnt_off000116f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116F5 | 17320 bytes |
SHA-256: bef01bcb72aa25d33997724f8322ef3a93eef309bd1281165eab68c6e2d64324 |
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