Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c3ebb3d760a4710…

MALICIOUS

PDF

66.6 KB Created: 2021-06-10 07:43:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f21e47c2592dc90b9583ae7d567a484 SHA-1: f688eb02075d6483671dac7d3f925556d068dc89 SHA-256: 8c3ebb3d760a47104cd24a56d453abe9478b6e0c5b4a9b61b34962f228efbd31
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URI points to a suspicious domain, suggesting it's used to deliver a secondary payload or redirect to a phishing site. The document's content, though heavily obfuscated, appears to be a lure, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8377

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://allytemp.ru/uplcv?utm_term=pdf+diary+of+a+wimpy+kid+wrecking+ball
    • http://immodraft.nrw/images/architekten_agentur_images_/file/ludijerebemonigijojumi.pdf
    • http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160c11151d3e59---60625347928.pdf
    • https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afacfb58695---40192849561.pdf
    • http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607b05b8689aa---vinakekelakojogofuxoto.pdf
    • https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/d10374d25b8f1197062cf569d728adfa/lubatopugovivaxezus.pdf
    • https://yziact.fr/wp-content/plugins/super-forms/uploads/php/files/36gijics8cjfd85aoa83st8kk7/pigefufipifuvivesu.pdf
    • http://traiteur-ribot.fr/userfiles/file/pisatozukegenizisapu.pdf
    • https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079ecf9d55c3---nisifotetekipapof.pdf
    • https://www.wflorlando.com/wp-content/plugins/super-forms/uploads/php/files/4447f739ad266347a3407e502627e3a9/bafowotiteb.pdf
    • http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609c6fef4d7d9---bigisurerijej.pdf
    • https://ficsllc.com/wp-content/plugins/super-forms/uploads/php/files/g087d4ng4jnl5n70db7gk6gcaj/12714075022.pdf
    • https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/9759glgvtq14g4m1gp47jnlgnp/31395946788.pdf
    • http://alexhofford.com/temp/files/file/12424550071.pdf
    • https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/9a294dd50c1a51691a1e3d3a213cd39e/62059911988.pdf
    • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a21ae84d225---73117907222.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f0fe.bin
3a99cdf67bc12e56c9c0dcb46178c1301d93028c01477e9dcb13414b56b589b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF0FE 5696 bytes

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