PDF malware analysis — malicious · 70b589397a986c1a

MALICIOUS

PDF

67.6 KB Created: 2021-02-10 00:32:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05

MD5: a0f6bdb51d705c63c9b86e92c94b1a96 SHA-1: 0e56cb50ba76d6ddbf94e6a5e8f912c9d91bda77 SHA-256: 70b589397a986c1a009197eb2f56d0133c044468ccd3367212b39e20237ae53c

194 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF file contains numerous external links, many pointing to SEO-optimized content, suggesting a link farm or phishing lure. The primary URL, 'https://jacksth.ru/aws?utm_term=aditya+hrudayam+kannada+pdf+free', is presented as a free download, which is a common social engineering tactic. While no scripts were explicitly extracted, the heuristic 'PDF_SEO_LINK_FARM' and the presence of many external URLs indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9035

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK

PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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://jacksth.ru/aws?utm_term=aditya+hrudayam+kannada+pdf+free PDF link annotation
- https://cdn-cms.f-static.net/uploads/4421770/normal_5fd8dcda8aa50.pdfIn PDF document text
- https://tevaxuxelajuri.weebly.com/uploads/1/3/2/7/132712575/jurazifunera-bogojenutep-nutazi-tigit.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4413363/normal_5fee828322235.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4418368/normal_5fe187148239d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417980/normal_6016d870405a8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4449775/normal_601a3ec43e323.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4369494/normal_5fc6abef6a0df.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4389571/normal_5fdfbf15e722a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4392656/normal_5fd9f4aab3770.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4454180/normal_5ff2029588029.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4415546/normal_6010d1265a8a8.pdfIn PDF document text
- https://s3.amazonaws.com/belapawerezuju/emerald_isle_pier_fishing_report.pdfIn PDF document text
- https://s3.amazonaws.com/miledu/puboxitesewaf.pdfIn PDF document text
- https://s3.amazonaws.com/zuwimadaneb/nujefudajipusidogirumo.pdfIn PDF document text
- https://s3.amazonaws.com/sojaxub/99468960472.pdfIn PDF document text

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