PDF static analysis report

Static analysis result for SHA-256 033a55c5cf2eebbd…

SUSPICIOUS

PDF

43.4 KB Created: 2021-06-03 18:01:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 1256f5f888be80183d171009bc1b1022 SHA-1: 13d7fc04e3cad95e30755bf557417db19de615f3 SHA-256: 033a55c5cf2eebbd8a1f4707b6a2abb2806ab9da29922c512bfad8e63c939179
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a heuristic firing for a malicious ML classifier, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, suggests a lure related to game exploits, specifically mentioning 'Free Script Executor Roblox'. The presence of numerous external URLs, including one pointing to a script executor download, strongly suggests the document is designed to trick users into downloading and executing potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 3

  • 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 https://netcdn.online/app/431946152/free-script-executor-roblox-game-hack PDF link annotation
    • https://cuc.ac.cr/userfiles/files/mine-minecraft-games-for-free_GM479516143.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/todays-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/how-to-make-a-minecraft-java-server-for-free_GM479516143.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/free-robux-site_GM431946152.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/buy-robux-free_GM431946152.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/free-robux-generator_GM431946152.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/free-spin-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/free-spins-and-coins-coin-master-app_GM406889139.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/roblox-army-robux_GM431946152.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/how-to-get-a-refund-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/static-moonactive-net_GM406889139.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/coin-master-hack-ios-reddit_GM406889139.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/coin-master-pc-hack-download_GM406889139.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/withdraw-robux_GM431946152.pdfIn PDF document text
    • https://cuc.ac.cr/userfiles/files/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004dd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DD4 24628 bytes
SHA-256: a2fe4b364e472bbaeeb2bd100dcfc60d113cb7b105607619d69d1cece6165483
font_01_sfnt_off00008646.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8646 18488 bytes
SHA-256: c1d8906df7cfed201442eecb2c05ff4a638972dd76746327367067a9273c3e32