Malicious PDF — malware analysis report

Static analysis result for SHA-256 d29e56ce72619136…

MALICIOUS

PDF

35.1 KB Created: 2021-07-05 14:43:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 9805a1ce8549eb3a197d27df161d8874 SHA-1: 7d5a93b10283df8c4aa87c4fda918c14b142daf8 SHA-256: d29e56ce7261913649d58761a9d9d67d01d5ea0a376aa661cac0ac573807ef70
82 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs and a heuristic firing for a password-protected archive lure, suggesting it is designed to trick users into downloading malicious content. The ML classifier strongly flagged this PDF as malicious. The presence of URLs related to game hacks and free currency indicates a social engineering tactic to entice users to click and download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://netcdn.tw/app/406889139/freespinandcoin-game-hack
    • http://e-library.stienobel-indonesia.ac.id/repository/coin-master-hack-without-verification-code-2021_GM406889139.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/if-i-uninstall-minecraft-can-i-reinstall-it-for-free_GM479516143.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/free-minecraft-printables-food-labels_GM479516143.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/free-script-executor-roblox_GM431946152.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/wurst-18_GM479516143.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/how-to-hack-people-on-roblox_GM431946152.pdf
    • http://e-library.stienobel-indonesia.ac.id/repository/coin-master-hack-apk-download-for-android_GM406889139.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/earn-free-robux_GM431946152.pdf
    • http://e-library.stienobel-indonesia.ac.id/repository/coin-master-fan-page-giveaway_GM406889139.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/coin-free-spin_GM406889139.pdf
    • http://e-library.stienobel-indonesia.ac.id/repository/minecraft-hack-app_GM479516143.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/free-roblox-passwords_GM431946152.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/coin-master-unlimited-spin-apk-free-download_GM406889139.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/how-to-make-robux_GM431946152.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/latest-coin-master-free-spins-link_GM406889139.pdf
    • http://e-library.stienobel-indonesia.ac.id/repository/moon-static-coin-master-generator-hacks-free_GM406889139.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/coin-master-hack-without-verification-for-iphone_GM406889139.pdf
    • http://e-library.stienobel-indonesia.ac.id//repository/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdf
    • http://e-library.stienobel-indonesia.ac.id/repository/minecraft_GM479516143.pdf
    • http://e-library.stienobel-indonesia.ac.id/repository/how-to-hack-coin-master-game-ios_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000344a.bin
66d567c15535fa03bc458158242c4ed46e3e8b93556f704b2b14c8b1fbe10c74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x344A 22616 bytes
font_01_sfnt_off000066df.bin
19494bed36003fadbe02431e250c62ef1698fa422030438aed600d934fd3a9e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66DF 18244 bytes

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