MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code or redirecting users. The numerous external links, many hosted on compromised or disposable domains, strongly suggest a phishing or malware distribution attempt. ClamAV detection and ML classification further support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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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JavaScript action low PDF_JAVASCRIPTPDF contains a /JavaScript action. 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 http://thunderstar.cn/userfiles/file/20210906071612891466389.pdf In PDF document text
- http://sicilyontable.it/userfiles/files/dojuxixisafak.pdfIn PDF document text
- http://xahuaheng.cn/userfiles/file/38221272797.pdfIn PDF document text
- https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f98f5c1e5c---56206422880.pdfIn PDF document text
- https://quasar.mago.ro/ckfinder/userfiles/files/gawutotemibavedupetiw.pdfIn PDF document text
- http://residencecarlofelice.com/userfiles/files/buroneserubapawaj.pdfIn PDF document text
- https://mattress-leader.com/media/14030089388.pdfIn PDF document text
- http://ccforum.kr/uploads/file/1630763762.pdfIn PDF document text
- http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16138d4503a3f8---66226352061.pdfIn PDF document text
- http://www.psoevalledeabdalajis.es/ckfinder/userfiles/files/81736904753.pdfIn PDF document text
- https://kampusogrenciyurdu.com/file/vizogubirubasinaj.pdfIn PDF document text
- http://eubeer.vn/uploads/files/jenaromituwejizixovejugu.pdfIn PDF document text
- http://crystaltrade.hu/data/file/dokipewowena.pdfIn PDF document text
- http://plnjl.com/userfiles/files/26593748737.pdfIn PDF document text
- https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/c2ef795143b36319bcffe79fed799b3c/nizuvabewuseziraxobex.pdfIn PDF document text
- http://turksebruiloften.nl/userfiles/file/zakad.pdfIn PDF document text
- https://grupo-kayros.com/userfiles/file/21403125380.pdfIn PDF document text
- http://ticaproduce.com/ckfinder/userfiles/files/zirexuxikomuxudokovapip.pdfIn PDF document text
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/161431f7e5b8c8---wopasadebig.pdfIn PDF document text
- http://fundacjaproartis.pl/javascript/ckfinder/userfiles/files/kavasaxes.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=set+start+page+chrome+androidPDF 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_off0000bc2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC2F | 16668 bytes |
SHA-256: 17dc6f6fcc889fa5c21df878bfdd0a12dfcaebe211653491045eaf58e5dd08bd |
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font_01_sfnt_off0000e71f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE71F | 10988 bytes |
SHA-256: 992eded2b47812d5977be6fdc11781b95e96de0740f34fd34ad29f70a9defb92 |
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font_02_sfnt_off0001003e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1003E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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