Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7e99c09eb6d164d…

MALICIOUS

PDF

41.6 KB Authoring application: Mobipocket Creator
MD5: 73d7923a7d8709b8a568c7d505120dc8 SHA-1: 7a76a2e72fbfb9d80049a5e5e2d083828cee7fd4 SHA-256: d7e99c09eb6d164d876e83124efce328e34660c12516bf0e6a1a0831fe7a740f
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links to external websites, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further indicates a phishing or traffic-driving intent. The embedded URLs are likely used to redirect the user to malicious content or phishing pages. No scripts were extracted from this sample.

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://rectaparrew.com/uploads/2020/01/28/9701490.pdf
    • http://zip-darom.ru/uploads/2020/01/27/norerawuzone.pdf
    • http://theradicallygood.com/uploads/1/3/0/6/130603878/jototozuwaga_xubulaluru.pdf
    • http://divowa.dataerudite.com/uploads/2020/01/27/rilanuma_refagefetimin.pdf
    • https://levozejilo.weebly.com/uploads/1/3/0/3/130313383/dejimoru-pefovoxamoga-zurewenat-dalabu.pdf
    • http://konilasu.suddenweblink.online/uploads/2020/01/28/pexetokiwida_sufoge.pdf
    • https://kufigiwelixovu.weebly.com/uploads/1/3/0/5/130539516/tofolefevatu.pdf
    • http://bamaagents.com/uploads/1/3/0/6/130621533/9048322.pdf
    • http://medterramexico.com/uploads/1/3/0/2/130289632/1247d.pdf
    • http://fix.buket99.com/uploads/2020/01/29/vesulajeduvux.pdf
    • http://rapadet.teldiuxmexico.com/uploads/2020/01/27/5870006.pdf
    • http://pifegug.lifetime24.ru/uploads/2020/01/27/95e0ec919bb536f.pdf
    • http://dancinggoatsanctuary.com/uploads/1/3/0/6/130604956/130604956.html#free+cursive+alphabet+sheets

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001367.bin
ed1a6e4ae60d4a646a6241b9e84d141aa2eed530b45a62a9b469d53891e9a764		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1367 8596 bytes

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