Malicious PDF — malware analysis report

Static analysis result for SHA-256 27b9e8b3f1ce0fcb…

MALICIOUS

PDF

36.7 KB Created: 2021-02-24 23:22:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 51d849b3bbb0524d245fe74c450ea76a SHA-1: 4b6247fe5cf0e27e7139b86003bb7b9267f201ca SHA-256: 27b9e8b3f1ce0fcb6bf824222052b82f74996fc97a71e507fecc3ce73c282816
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image lure, containing minimal text and a clickable link disguised as relevant content. The primary external URI, 'https://baarspo.ru/award?keyword=what+does+unsexed+mean+when+buying+chickens', is flagged as a redirector, suggesting it leads to a malicious site. ClamAV also detected this as Pdf.Phishing.Trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6329

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
  • 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.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 36 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://baarspo.ru/award?keyword=what+does+unsexed+mean+when+buying+chickens PDF link annotation
    • http://polnews.xyz/weight_and_height_guide_chart_femalejfpyk.pdfIn PDF document text
    • https://cdn.sqhk.co/pedidagow/bgfUJWb/73825835706.pdfIn PDF document text
    • http://questotzvezd.space/1797932379130wca.pdfIn PDF document text
    • https://baxomowimesadud.weebly.com/In PDF document text
    • http://xizokokov.epizy.com/mukutufokimesewogugire.pdfIn PDF document text
    • https://s3.amazonaws.com/sedimeraxufi/99847098825.pdfIn PDF document text

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