PDF malware analysis — malicious · 96e481e1f7bb1127

MALICIOUS

PDF

47.4 KB Created: 2021-09-23 05:08:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24

MD5: 279b9d339a01f440bd28458caec57c4d SHA-1: 475b5c192125d84262ef906bf56790349e9c865f SHA-256: 96e481e1f7bb1127a320eb47d8b09d54b659eb3267e5ef9cfda9bf55f76758af

132 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript, which is a common technique for executing malicious code within documents. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the PDF is designed to host numerous links to external, potentially disposable domains, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection further support its malicious nature.

Machine Learning

Nyx PDF Classifier malicious score 0.6949

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small 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.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One 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://demirlermetal.com/resimler/files/73220905244.pdf In PDF document text
- https://amgaa.org/temp/files/78584772161.pdfIn PDF document text
- http://sweed-trans.eu/ckfinder/userfiles/files/zidoduxurodegefeg.pdfIn PDF document text
- https://razredna-nastava.net/files/xamiwatomitozuzijarutega.pdfIn PDF document text
- http://www.humillacionyestrella.org/ckfinder/userfiles/files/80846908206.pdfIn PDF document text
- http://chinastom.ru/userfiles/file/kinat.pdfIn PDF document text
- http://canavesiobruno-architetti.it/userfiles/files/3647327625.pdfIn PDF document text
- http://tatishev.ru/admin/ckfinder/userfiles/files/97694352779.pdfIn PDF document text
- https://ikuseikyokai.jp/ckmedia/files/xokegexesasi.pdfIn PDF document text
- http://www.peretprod.ro/content-images/file/jitazetumotur.pdfIn PDF document text
- http://rocb-ap.org/file_media/file_image/file/pedewi.pdfIn PDF document text
- http://logopeda-empatia.pl/content/file/vojegajetexexemisefaj.pdfIn PDF document text
- http://www.sauminandy.com/fckimages/file/nupawer.pdfIn PDF document text
- http://aquamedia.cn/ckfinder/userfiles/files/bokemomubumeresow.pdfIn PDF document text
- http://wuyioutdoor.com/userfiles/file/375447652.pdfIn PDF document text
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/3ff1d9468389bcacadd0746d633351da/xerulijemuj.pdfIn PDF document text
- https://empezo.xyz/js/ckfinder/userfiles/files/wudunexemuzawominosat.pdfIn PDF document text
- https://truongthanhco.vn/webroot/img/files/74481439084.pdfIn PDF document text
- http://wirheiraten.de/images/file/68046777020.pdfIn PDF document text
- http://edituj.cz/res/file/vadizegedaxoxulifonepoj.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=jeremy+silman+endgame+course+pdfPDF link annotation

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