MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1059.007 JavaScript
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The heuristic 'SE_BROWSER_INSTALL_LURE' strongly suggests a social-engineering attack aimed at tricking the user into installing malicious software by impersonating a browser update or extension. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
Heuristics 6
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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://staresecurity.com/userfiles/file/76021022714.pdf In PDF document text
- http://aftckwt.com/uploads/file/10737061408.pdfIn PDF document text
- https://hotnewsmd.deca.md/upload/userfiles/files/bezejedatinewajuwafo.pdfIn PDF document text
- http://taxplus.in/images/contentimages/files/kojisubemozukenowapodemed.pdfIn PDF document text
- http://kuryakyn.ru/userfiles/file/60803089585.pdfIn PDF document text
- http://hyunbulsa.org/~ewedd2/userfiles/file/javipoposujasev.pdfIn PDF document text
- https://dpengineers.info/admin/userfiles/file/fipeworogenamemofo.pdfIn PDF document text
- https://studioconcept-stand.com/fck_userfiles/file/gabakuzosoderovijamine.pdfIn PDF document text
- http://stainless-faucet.com/uploads/htmlupload/files/38988982880.pdfIn PDF document text
- http://nwatchonline.net/userfiles/file/mulalalelalivam.pdfIn PDF document text
- https://ambient-interier.cz/files/files/xidakosunobimozasojo.pdfIn PDF document text
- http://shepardinteriordesign.com/rw/upload/file/laviputibenigiv.pdfIn PDF document text
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/16139faa3b278b---51099484344.pdfIn PDF document text
- http://liceoadultos.juniorcollege.cl/userfiles/files/95378985659.pdfIn PDF document text
- http://www.ondebiz.com/userfiles/file/sawutewi.pdfIn PDF document text
- https://transport-vehicules.fr/userfiles/file/61660040120.pdfIn PDF document text
- http://xn--80aejmo0alc.xn--p1ai/ckfinder/userfiles/files/90566299748.pdfIn PDF document text
- http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138365d746bb---91614921794.pdfIn PDF document text
- https://westhygiene.hu/editor_up/dotatilujapaxime.pdfIn PDF document text
- https://www.la-melodie-des-saveurs.fr/ckfinder/userfiles/files/77470152429.pdfIn PDF document text
- https://zerling.eu/nico/images/files/96971064647.pdfIn PDF document text
- https://sdhouse.info/ckfinder/userfiles/files/nufiwimufutozegonum.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=pubg+mobile+how+to+get+free+ucPDF 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_off0000e71c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE71C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ff33.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF33 | 10676 bytes |
SHA-256: 90c256dcdf40f51e30e5b32348fcd6ea2dbbc7ab07914e4cccb40e7a08eb2e70 |
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font_02_sfnt_off000117b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117B0 | 19056 bytes |
SHA-256: 42a4c30722f5e9589c53d489b863122151ceb183d17a1a8f1431de33ba2d7712 |
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