PDF malware analysis — malicious · 64a8f0bc4b34a9f0

MALICIOUS

PDF

49.4 KB Created: 2021-09-23 04:27:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-31

MD5: 2f9a68efff487d304ea9b82870f0da7f SHA-1: 3da6a1572e63271abf260920e86df5f97260e6dc SHA-256: 64a8f0bc4b34a9f03ea6e030dfb7ab3fe4ffcb8df55bab661f4a4c56b19981f0

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a high number of embedded links pointing to various domains, indicating a link farm or phishing attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and numerous external URIs are indicative of a phishing or malware distribution lure, likely leveraging embedded JavaScript for malicious actions.

Machine Learning

Nyx PDF Classifier malicious score 0.9346

Heuristics 4

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.
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 https://catamma.ru/uplcv?utm_term=xnxx+granny+solo PDF link annotation
- https://cdmsig2.com/ckfinder/userfiles/files/70694349051.pdfIn PDF document text
- https://walnutcreekguide.com/wysiwygfiles/file/37614499546.pdfIn PDF document text
- https://vico-immobilien.com/ckfinder/userfiles/files/fedijovesukepovuxuvadafoj.pdfIn PDF document text
- http://malagi.pl/user-files/fck/file/tuzit.pdfIn PDF document text
- http://tradotel-riviera.com/file/fojepi.pdfIn PDF document text
- http://sakaryakasaplarodasi.org/userfiles/file/zopakex.pdfIn PDF document text
- http://shijijiaming.net/filespath/files/20210901212452.pdfIn PDF document text
- http://keacg.com/upload/files/53284824374.pdfIn PDF document text
- https://onlineadda.organicemall.com/ckfinder/userfiles/files/540001051.pdfIn PDF document text
- http://acevina.com/webroot/img/files/5354289063.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/1154f899aaff2392e86dc7d68bb74f49/gititonarafanes.pdfIn PDF document text
- http://maketmaster.ru/admin/ckfinder/userfiles/files/67624890335.pdfIn PDF document text
- http://uniontsg96.ru/admin/ckfinder/userfiles/files/bolasunifobopofugipez.pdfIn PDF document text
- http://a1-automotivegroup.com/upload/files/xikoz.pdfIn PDF document text
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140c45e1364f---88772851074.pdfIn PDF document text
- http://medrea.ru/upload/files/zebuwesate.pdfIn PDF document text
- http://airelimpio.mx/img/editor/file/96222751720.pdfIn PDF document text
- http://hnkingdee.cn/Files/file/202195123439.pdfIn PDF document text
- http://thinhhoanggia.vn/Images_upload/files/fonesobelajakikabobi.pdfIn PDF document text
- http://juncheng.tw/upload/files/luduzurofifomelavijoma.pdfIn PDF document text
- http://jshtextile.com/UserFiles/file///lonesitinu.pdfIn PDF document text

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