Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa3f29f314c7c084…

MALICIOUS

PDF

36.4 KB Authoring application: Nitro PDF
MD5: 9d932b3dfe3a6c9494026ad1fa193f38 SHA-1: 1385a02d737ae503a3e1c735d95a25fc8e51dee0 SHA-256: aa3f29f314c7c0846b6d84012f74778ca6e57519fc89b66f59ec96e5a9fbbce7
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by multiple heuristics, including a critical finding for a link farm and ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0. The document body contains numerous embedded URLs, suggesting a phishing or redirection attempt. The primary attack pattern involves leveraging these links to direct users to potentially malicious content.

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://jow.najiyagalimova.com/uploads/2020/01/27/9911766a129d4a.pdf
    • http://forresterflooring.net/uploads/1/3/0/4/130489926/b0ed08a8186332.pdf
    • http://lapar.finni.ru/uploads/2020/01/27/muzufevamere-temiz-kudaxosegivowo.pdf
    • http://indi-vibes.com/uploads/1/3/0/4/130483513/7542887.pdf
    • http://hectormaxwell3d.com/uploads/1/3/0/4/130476503/limusekoraweg.pdf
    • http://nim.sonxequyentri.com/uploads/2020/01/28/gibugege-bodad-zudanosobijan-keretekumiza.pdf
    • http://pes.ggdmetals.site/uploads/2020/01/28/zazifikovemogetumat.pdf
    • http://steverat.com/uploads/1/3/0/6/130621998/6413464.pdf
    • https://melafibavufus.weebly.com/uploads/1/3/0/5/130541004/6602721.pdf
    • https://xatukoronixelaw.weebly.com/uploads/1/3/0/5/130590677/7b14876d6c.pdf
    • http://zakitima.alianzaamericanadecolombia.com/uploads/2020/01/29/9f4ea.pdf
    • http://cfthomas.com/uploads/1/3/0/4/130483474/130483474.html#cool+white+vs+warm+white

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012eb.bin
a1719735fda408488883fd89b960ac8417e0852f12f7f4974e58adad8991b619		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12EB 8052 bytes

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