Malicious PDF — malware analysis report

Static analysis result for SHA-256 65e3649e67ea2732…

MALICIOUS

PDF

45.5 KB Authoring application: LibreOffice
MD5: 00efbe6db2436a61873b9c5db3545040 SHA-1: 9fb1d8c9ede6f6e9a3ce2ffa726362dbaf93e24f SHA-256: 65e3649e67ea27325aeffcefc6a04110fd99b00cee85304fc05970516ce2fe76
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which are structured to appear as SEO-optimized content related to Canadian citizenship. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or redirecting users to malicious sites. The embedded URLs are the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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 http://poppyandrose.co.uk/uploads/1/3/0/2/130289431/4899582.pdf
    • http://tukteacompany.com/uploads/1/3/0/7/130775458/tajopirimixijin.pdf
    • http://csobecancour-en.com/uploads/1/3/0/6/130639765/fisubuvosiban.pdf
    • http://suprimos.club/uploads/1/3/0/5/130588827/6fc3a61e6bfe.pdf
    • http://starbagsptsd.com/uploads/1/3/0/5/130546606/vadanusog.pdf
    • http://nytenterprise.com/uploads/1/3/0/2/130270956/jajude-kexeka.pdf
    • http://nationalfootballcheerleadersalumni.org/uploads/1/3/0/6/130604495/130604495.html#canadian+citizenship+card+number+format
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010e0.bin
a9626125f159e1e29733d46f8eb1ad0c2a0f25f4f8124dbd5525c6f4f45a952d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E0 7912 bytes
font_01_sfnt_off0000663c.bin
062abeeb0630068c9ebda4cd69880ba7d22c023ef851e82e77d1a768bfa0705b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x663C 17648 bytes

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