Malicious PDF — malware analysis report

Static analysis result for SHA-256 cac50805a793a548…

MALICIOUS

PDF

50.6 KB Created: 2021-01-31 19:40:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 2d16077c22e831bcd0b011380db6b4d7 SHA-1: fdc3086749584c80979a1f524d6906559c03751f SHA-256: cac50805a793a54808e95aa9c88c03fb2a63b19d944f3f1cbce3ca65572a7181
134 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains heuristics indicating it's a phishing lure, specifically using an image to redirect users to a URL that appears to offer free downloads. The embedded URL and the ClamAV detection strongly suggest malicious intent, likely to deliver a secondary payload or phish for credentials. No scripts were extracted, but the overall pattern points to a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7052

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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=capture+one+styles++free PDF link annotation
    • http://gmetry.online/944969997806zrzd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383467/normal_600ff2d179229.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369760/normal_5fef5647c23b2.pdfIn PDF document text
    • https://cdn.sqhk.co/jowapezo/ig66gex/sigarumaw.pdfIn PDF document text
    • https://cdn.sqhk.co/mumesimasozo/jbjhghw/the_galaxy_survivor_apk_android_1.pdfIn PDF document text
    • http://antonioit.fun/lokesakifipefajusifirotixz550z.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410462/normal_6001e5848da0e.pdfIn PDF document text
    • https://cdn.sqhk.co/zenetofuma/fjhjheL/paycell_haz_r_limiti_kullanam_yorum.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405925/normal_600789eea5a5d.pdfIn PDF document text
    • https://cdn.sqhk.co/jilebodetifa/KgfVHia/repost_instagram_story_you_re_not_tagged_in.pdfIn PDF document text
    • https://s3.amazonaws.com/gowupuzokowuxes/61463366144.pdfIn PDF document text
    • https://s3.amazonaws.com/laradusa/can_you_android_apps_on_iphone.pdfIn PDF document text
    • https://s3.amazonaws.com/dojonuta/vumesugakimatuzap.pdfIn PDF document text

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

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