Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6096be2892fc409…

MALICIOUS

PDF

94.3 KB Created: 2021-07-18 08:43:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: e489daa8205164abbc6dd0ac7c0b3dc3 SHA-1: a095acb22c7bb3334fcdef6b5ae1f337a6fe8ef8 SHA-256: b6096be2892fc4091b85ad2c97d656afe903af6e3661b0f21603b4cf3ec1c10d
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of embedded URLs, specifically one pointing to a feedproxy service, suggests an attempt to redirect the user to a potentially harmful site. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5781

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/HbdJGeoIq_s/square?utm_term=raising+money+for+a+good+cause
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60ee07978443ee2c8934755d/1626212247854/neberefapuzobaxebafude.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f399afc2d40e67ec0e3926/1626577327130/7888185951.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f25e3a2be78d5265916785/1626496570344/how_to_put_record_screen_on_iphone.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ed2daff2de0a6ebf307ab9/1626156463919/energy_and_its_importance.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_off00010f28.bin
b6ca1da6c20c1b350ddcaae781cf7a0ec4a15cc77bae49d7d50fae555efe60f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10F28 10932 bytes
font_01_sfnt_off00012849.bin
118c7be91147867f2dda5a99a6eea5b3b380967da629575f354d3f8944a827fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12849 17356 bytes
font_02_sfnt_off00015599.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15599 16792 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.