MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and multiple external URIs, indicating an attempt to download and execute a secondary payload. The 'SE_DOWNLOAD_BUTTON' heuristic suggests a social engineering lure to trick the user into initiating the download. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or trojan delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 7
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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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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 https://limsurdua.com/contents/files/mevivesopadorumobegogadik.pdf In PDF document text
- http://cochemical.com/upload/files/kasipokuxajumabutijekex.pdfIn PDF document text
- http://laarakkers.com/ckfinder/userfiles/files/70825921611.pdfIn PDF document text
- http://soloparamideco.com/js/new/fckeditor/userfiles/file/54296724562.pdfIn PDF document text
- https://buonoantonio.it/userfiles/file/66334271517.pdfIn PDF document text
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/161460d4c472df---fixisowov.pdfIn PDF document text
- https://euronuts2009.ge/files/files/43092262100.pdfIn PDF document text
- http://connectcontrol.net/files/userfiles/files/27038056.pdfIn PDF document text
- http://rlangkhan.com/upload/userfiles/files/mesuviwuni.pdfIn PDF document text
- http://herborgthailand.com/file_media/file_image/file/81011434253.pdfIn PDF document text
- https://fishuntpesca.it/file/23354948776.pdfIn PDF document text
- http://nfraccon.org/userfiles/file/61979178463.pdfIn PDF document text
- http://autoneza.cz/UserFiles/File/10105583915.pdfIn PDF document text
- https://akconta.com/uploads/files/31985245780.pdfIn PDF document text
- http://gcoekmr.org/cukashmir/User_Files/imagefile/rapug.pdfIn PDF document text
- http://www.hzkontejnery.cz/ckfinder/userfiles/files/58886597384.pdfIn PDF document text
- http://stilistspb.online/public/files/uploads/files/kirag.pdfIn PDF document text
- http://nuraski.pl/wsg/userfiles/3012109822.pdfIn PDF document text
- http://boldino-hotel.com/ckfinder/userfiles/files/47389630969.pdfIn PDF document text
- http://kangmeideyiliao.com/uploadfile/file///2021091810131162.pdfIn PDF document text
- http://absolutelyneon.com/userfiles/file/21695974715.pdfIn PDF document text
- http://wintec-samu.hu/uploads/files/81462566741.pdfIn PDF document text
- http://noithatsah.com/webroot/img/files/setezulenekulazuj.pdfIn PDF document text
- https://nawaasha.org/userfiles/file/bunovefesikidasefi.pdfIn PDF document text
- http://billedbutikken.dk/articlefiles/file/zopufofazefimepaludalazu.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=how+to+install+morph+tv+on+firestickPDF 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_off0000d8ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8EF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f106.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF106 | 10980 bytes |
SHA-256: 3059a9e83ce066bcda83ba745456234a7fb58f83e233b5626c0ffac868643f1c |
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font_02_sfnt_off00010a54.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A54 | 18252 bytes |
SHA-256: 083f4ef1f438c6bf4e64ffffc7319029e48d822bf908b1b10303629ed5bf3498 |
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