Malicious PDF — malware analysis report

Static analysis result for SHA-256 354a26857ed48ded…

MALICIOUS

PDF

80.4 KB Created: 2021-07-14 02:50:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 27cb4263213a795fc4e7f988f452bec3 SHA-1: 13c8ed3ac1ad3df8b51d1781b9d850316fc84949 SHA-256: 354a26857ed48deda8741bae4a5a4902b34d7f52f26b38b4be674b871ac14f46
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The presence of embedded URLs, despite some being marked as benign, suggests a phishing or credential harvesting attempt. The ML classifier also indicated a high probability of maliciousness. No scripts were extracted, but the overall pattern points to a malicious document designed to deceive the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6166

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://feedproxy.google.com/~r/sq/ugae/~3/k6oGaauGqGM/square?utm_term=basilica+of+our+lady+of+good+health
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ee012bba7c7f743c20dd73/1626210603373/12753773248.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ed9bb7b2cb0e528689b831/1626184631189/laxavozirisajabosebezudu.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60edc4480229956bd131825c/1626195016834/bobotetavefukibo.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ee2365462f394a1e402ffc/1626219365307/tigunoxabokazinawuzik.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d96d.bin
60dcbcecda0edfdbae7e33bb7248528c9c419da03b6a590ffac498530d3a9933		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD96D 16540 bytes
font_01_sfnt_off00010457.bin
3f6cbd8ad7fd91fbccd2043161d2c9111378ea3a9d020b57a6ad00ede5a3b557		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10457 10920 bytes
font_02_sfnt_off00011da5.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11DA5 16792 bytes

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