Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7ad6c63b125e414…

MALICIOUS

PDF

81.0 KB Created: 2021-07-14 01:34:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: e2ef4db25515ed0051190a5dfe0aaed2 SHA-1: 0f887acb55e40cda882a470e83d51b071d1062e9 SHA-256: c7ad6c63b125e414f1c6e870a5719c359caa42c0f54fd0551346b084b55f7130
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The ClamAV heuristic identified this PDF as a phishing trojan. The embedded URL, although marked as benign, suggests a potential lure to a malicious site. No scripts were extracted, but the PDF structure itself likely contains obfuscated links or exploits to achieve its malicious objective.

Machine Learning

  • Nyx PDF Classifier clean score 0.1467

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/~3/5JeRQhMeIYg/square?utm_term=great+eulogy+examples
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec9246bc6eee4b058f6e3f/1626116679020/polinumig.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ee0681e83f616bcf872e21/1626211969256/werinez.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_off0000de7d.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDE7D 16792 bytes
font_01_sfnt_off0000f68f.bin
d8dc367040738551ede9ba8d843504b3e86237d905d00a58874d8dc904ff0123		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF68F 16064 bytes
font_02_sfnt_off00011fbb.bin
ba3d66aa5ae21673303db432de139984d0bb3e5cb502b9492dad0f6a784417ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11FBB 10756 bytes

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