Malicious PDF — malware analysis report

Static analysis result for SHA-256 480795e2de9f3d47…

MALICIOUS

PDF

40.8 KB Authoring application: Solid Converter PDF
MD5: 675e7dac5313acf89485f55638fdd4bc SHA-1: 8dff8b80c2afa80c656d894a5fa812f8df4ccbbd SHA-256: 480795e2de9f3d474567d7583b15eaa13c5ed5df190e4c89c5b1b972c8b3433b
62 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, one of which is flagged as a PDF_URI. The ClamAV heuristic identifies the file as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', strongly suggesting a phishing campaign. The document body text, though partially corrupted, mentions 'Uptodown is currently under maintenance' and 'UC Browser Apk for Android', likely a lure to trick users into downloading the malicious PDF.

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://yoyotk.com/uploads/1/3/0/5/130590366/104d272dd6d.pdf
    • http://2clearlycharming.com/uploads/1/3/0/6/130605258/5dac68.pdf
    • http://carnivoradesign.com/uploads/1/3/0/2/130270901/dufipigasazax_xilexemobojutog.pdf
    • http://nalbarra.com.au/uploads/1/3/0/5/130543537/6948321.pdf
    • http://theelfbox.com/uploads/1/3/0/5/130546392/130546392.html#uc+browser+free++apk+for+android

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000103d.bin
749da04c9e24f8ce5b101f3ffe5aa201a3ee9e69be0eaa6f05df95891a65d7db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103D 8132 bytes
font_01_sfnt_off00005948.bin
c6c28444bcd94379862b6cc7f8cfcdbcdaeb026857ccdb099d87626a561054a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5948 16092 bytes

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