Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f3bde764216637c…

MALICIOUS

PDF

65.4 KB Created: 2021-03-03 01:36:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 209202b2353e4034639674a1ff82b56b SHA-1: 869e90beda8a852ffd03a1aea37f4e84c6c314cc SHA-256: 3f3bde764216637cf13ff91de54061623b3e17ea2d3cde44a78203e24e71a334
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7139

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
  • 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.
  • 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://gimoguvi.ru/award?keyword=after+twenty+years+pdf+class+8 PDF link annotation
    • https://cdn.sqhk.co/woselukafo/ib8cgg2/u_mobile_postpaid_plan_iphone_12.pdfIn PDF document text
    • https://cdn.sqhk.co/xozawimepod/LNAJ7gi/global_war_simulation_africa_premium_apk_hile.pdfIn PDF document text
    • https://cdn.sqhk.co/pawexedibib/s8jdhdi/92731732888.pdfIn PDF document text
    • https://cdn.sqhk.co/rubupidorinu/hgswjWv/xuvuvirapidoroke.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404112/normal_6033721a1e8c2.pdfIn PDF document text
    • http://visiblawty.com/chrome_remote_desktop_windows_100wciz.pdfIn PDF document text
    • http://devgame.design/taxosuvawifigamaxirorijxorb.pdfIn PDF document text
    • https://lomofoxagut.weebly.com/uploads/1/3/4/5/134524577/a19b4fe647eb938.pdfIn PDF document text
    • http://bigwin-1xbet.fun/archery_game_for_mobile4lgdy.pdfIn PDF document text
    • http://persequenteamsohbet.com/36682789409cmy31.pdfIn PDF document text
    • http://legrand-spb.ru/42876742128zrc94.pdfIn PDF document text
    • http://dektesheff.xyz/trig_function_calculator_sin_cos_tanmdxov.pdfIn PDF document text
    • http://detonic-romania.website/how_to_describe_your_writing_style8vuh9.pdfIn PDF document text
    • https://cdn.sqhk.co/tosijoxopum/SIje6ax/shell_club_lbi.pdfIn PDF document text
    • https://s3.amazonaws.com/wipotegadodorek/59845851615.pdfIn PDF document text
    • https://s3.amazonaws.com/lulelepese/archery_mod_apk_terbaru.pdfIn PDF document text
    • https://s3.amazonaws.com/tosego/rosebava.pdfIn PDF document text
    • https://s3.amazonaws.com/gezejoputiwinu/kigofada.pdfIn PDF document text
    • https://s3.amazonaws.com/bisegilupuf/jaxanupifilulatuda.pdfIn PDF document text

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