Malicious PDF — malware analysis report

Static analysis result for SHA-256 5342abfcd1fe008d…

MALICIOUS

PDF

92.0 KB Created: 2021-07-19 01:54:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 6c5b4e62dc04e79cfefcab47983bbef9 SHA-1: e7ae22594d3e7c2e56aa897976e11e2f3a721090 SHA-256: 5342abfcd1fe008d415c0bf2895eaf1e7583ce7e77391956a0767cba28215aca
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The ClamAV heuristic identified the file as Pdf.Phishing.Trojan, indicating a phishing attempt. The embedded URL points to a resource that is likely part of the phishing lure. Although no scripts were explicitly extracted, the PDF structure and the presence of embedded URLs suggest an attempt to redirect the user to a malicious site, consistent with phishing tactics.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3503

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
  • 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/-MXWpcYQ7kA/square?utm_term=peasants+during+the+middle+ages
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60eddf0a3be50f2c5dada6f2/1626201866805/sex_with_ai_robot.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f4ad2cd9389f5e809d2a86/1626647852533/besas.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e94c75f107ff2467ea4c9c/1625902197261/body_image_project_ideas.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e92bce566ded7d61ad13f0/1625893838359/57572344171.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fd85.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD85 16792 bytes
font_01_sfnt_off00011597.bin
9d5122e3651e689dfb2b4cbcf9885b7d42addecd1c78a2e2e9b81b4682469008		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11597 17780 bytes
font_02_sfnt_off000143b1.bin
1458759cc6886fa20e539606d8d9cf18791671083e21506fbe80ca6407ffd782		 pdf-font-stream PDF embedded font (sfnt) at offset 0x143B1 10676 bytes
font_03_sfnt_off00015bb0.bin
dc7658dd34036b18f2a33fa5dad293a96c6223c5175f31ace46f8f83af3accff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15BB0 1692 bytes

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