PDF static analysis report

Static analysis result for SHA-256 f5c9bef3d0aef4cd…

SUSPICIOUS

PDF

47.4 KB Created: 2021-06-09 06:31:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 27c2048ed0408c99702ebbcb8f52fd1d SHA-1: e40a5b171e09dfa9946f4d333d9641e4bb5a3f23 SHA-256: f5c9bef3d0aef4cd8b5e35dde603fc6b48537fc20c026d0007b33fd73fa06b42
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a heuristic firing for an external URI pointing to a URL associated with game hacks. The document body, though heavily obfuscated, contains text related to 'Roblox Taxi Simulator' and a URL that appears to be a lure for downloading a hack. The ML classifier also flagged this PDF as malicious. The presence of an external URI and the nature of the content suggest an attempt to trick the user into downloading a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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.tw/app/431946152/roblox-taxi-simulator-brick-cars-edition-give-all-cars-hack-game-hack PDF link annotation
    • http://pustaka.pasca.unand.ac.id/repository/free-college-textbooks-tiktok_GM835599320.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-fashion-frenzy-free-games_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-minecraft-account-and-password_GM479516143.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-free-full-download_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-to-get-free-robux-in-a-game-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-executor-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000513b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x513B 23824 bytes
SHA-256: 794597bd2907ca4d7841db65eeb2c684d3a537391dab61acd71c2a75a7338458
font_01_sfnt_off00008740.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8740 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off000093e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93E8 19096 bytes
SHA-256: 8e880070896d0143f1e5a35e99d486acbe5a4c8a960f9ab1d891d7f7b1dfb6d9

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