Malicious PDF — malware analysis report

Static analysis result for SHA-256 10e4db657141d5a4…

MALICIOUS

PDF

51.1 KB Created: 2021-01-18 04:23:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 198904c51d1dff720385a14dda6b4ccf SHA-1: 2e47781c293b5d8e29fdba4532e112b0f94edde5 SHA-256: 10e4db657141d5a48ee41dae9edc4d782232018915633d42c8d83671ba1d4edc
134 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains heuristics indicating it is a phishing lure, specifically using an image to redirect users to an external URL. The embedded URL `https://trafffe.ru/aws?utm_term=familial+cerebral+cavernous+malformation+icd+10+code` is identified as a redirector for phishing. While no scripts were explicitly extracted, the PDF structure and the presence of external links suggest an attempt to trick the user into navigating to a malicious site, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6064

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://trafffe.ru/aws?utm_term=familial+cerebral+cavernous+malformation+icd+10+code PDF link annotation
    • https://site-1172792.mozfiles.com/files/1172792/cameroon_makossa_music.pdfIn PDF document text
    • https://cdn.sqhk.co/wediximewoza/id6jg2w/insta_captions_for_first_pic_with_boyfriend.pdfIn PDF document text
    • https://site-1174531.mozfiles.com/files/1174531/un_climate_report_2018_ipcc.pdfIn PDF document text
    • https://cdn.sqhk.co/nubokeso/agdjctr/super_mario_world_japan_theme_park.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488317/normal_5fff7b2a84c9f.pdfIn PDF document text
    • https://s3.amazonaws.com/zabejuvijolu/vault_calculator_premium_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/vinejivunitego/destiny_2_weapon_spreadsheet_shadowkeep.pdfIn PDF document text
    • https://s3.amazonaws.com/gotenukevepunin/bewafa_status_image.pdfIn PDF document text
    • https://s3.amazonaws.com/bevarolimesale/all_the_beautiful_lies_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/murukivodeloludesonin.pdfIn PDF document text
    • https://s3.amazonaws.com/lanaladu/fury_warrior_guide_pvp.pdfIn PDF document text

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