Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c64e6ed009be825…

MALICIOUS

PDF

43.2 KB Authoring application: LibreOffice
MD5: 835d3982f47a93de864b5648927a148d SHA-1: 7531ac964789d680d8558e08a9cf3c07c968bf66 SHA-256: 5c64e6ed009be8251df3f0ac9204881cf5c0ea6dc2f44e28c4d3105e55d9c0c1
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a call-to-action to download the Vidmate application, along with instructions on how to install it. It embeds multiple URLs pointing to potential download locations for the application, indicating a phishing or social engineering attempt to trick the user into installing potentially unwanted or malicious software. The ClamAV detection and ML classifier further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://sherwoodrooster.com/uploads/1/3/0/3/130323556/vexotuwova.pdf
    • http://mowerok.com/uploads/1/3/0/4/130436040/9663046.pdf
    • http://allieplatt.com/uploads/1/3/0/2/130289340/gakuniras_tavevejapator_gogegege.pdf
    • http://cyclebavaria.com/uploads/1/3/0/6/130604319/130604319.html#vidmate+app+latest+version+2018
    • 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_off00000fc8.bin
c78546de92303128fb8c42aa72ca32073d801cf40d4bb4e442201ca2332c5b25		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC8 8328 bytes
font_01_sfnt_off00006369.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6369 16036 bytes

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