Malicious PDF — malware analysis report

Static analysis result for SHA-256 20d8bfbf72b46c23…

MALICIOUS

PDF

43.8 KB Authoring application: SWFTools
MD5: fa8c892adb2028f251f23a55002fccde SHA-1: 55716b52d9711fd87d43bd242ff485bc53871738 SHA-256: 20d8bfbf72b46c239e8dffc054a705ce40066d2ad34dd15acbb0b7e5fd258a4a
92 Risk Score

Malware Insights

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

The file is a PDF document that contains multiple embedded URLs. The document body, though heavily obfuscated, mentions 'Free blank t shirt mockup' and includes URLs that appear to host further PDF files or HTML content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly suggests a phishing or malicious redirection campaign. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://nibir.mupoisk.info/uploads/2020/01/28/sikogeluve.pdf
    • http://kncompletehomeservices.com/uploads/1/3/0/5/130542924/zowuma-fezera-kavowalobamufe.pdf
    • http://ludgatehillpartners.com/uploads/1/3/0/7/130740427/7c3367cf1.pdf
    • http://your-aroma.co.uk/uploads/1/3/0/4/130483480/torapujeloroxoz-gekinuja.pdf
    • http://gomriz.com/uploads/1/3/0/4/130435851/130435851.html#free++blank+t+shirt+mockup

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001080.bin
131d76a1f8750651386344650a38c6b0fcf0eee1dd4ec49790b25ca776d12438		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1080 8588 bytes

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