Malicious PDF — malware analysis report

Static analysis result for SHA-256 af9d6c711d363bca…

MALICIOUS

PDF

35.5 KB Created: 2021-07-04 04:28:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 06b5128aa067a6c58405db52c8a2256b SHA-1: 855bdcebede55b2d2dcc1fc5b6370fa8d404fd69 SHA-256: af9d6c711d363bca1bd594a0dda2a83a8a7a32d99742392dfacde3470f659966
82 Risk Score

Malware Insights

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

The document displays a fake CAPTCHA or human verification prompt, a common lure for scams. It contains multiple embedded URLs pointing to sites offering 'free' game items or hacks, suggesting a phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/431946152/how-to-get-free-roblox-premium-game-hack
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/roblox-hacker-cods-fr-redline_GM431946152.pdf
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/roblox-weight-lifting-simulator-3-hack-script_GM431946152.pdf
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/free-tiktok-followers-app_GM835599320.pdf
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/get-me-robux_GM431946152.pdf
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/how-can-i-get-free-robux_GM431946152.pdf
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/robloxmatchcom-free-robux_GM431946152.pdf
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/free-robux-no-human-verify_GM431946152.pdf
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/roblox-free-skin_GM431946152.pdf
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/free-minecraft-pe-server_GM479516143.pdf
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/are-there-ways-to-get-free-robux_GM431946152.pdf
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/coin-master-free-spins-link-2021-hack_GM406889139.pdf
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/is-minecraft-earth-free_GM479516143.pdf
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/minecraft-free-online-unblocked_GM479516143.pdf
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/download-app-hack-roblox_GM431946152.pdf
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/exploit-for-roblox-2021-cheat-engine_GM431946152.pdf
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/freerubux_GM431946152.pdf
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/coin-master-root-hack_GM406889139.pdf
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/can-my-childs-friend-hack-roblox-game_GM431946152.pdf
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/best-free-exploit-roblox-pain-exist_GM431946152.pdf
    • http://www.indokashcrafts.com/uploaded_files/userfiles/files/coin-master-20-free-spins-link-today_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031e7.bin
601520327ad44076ca8345534516607fc4c4cc806238a05bb1d35b5991b9e5d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x31E7 22564 bytes
font_01_sfnt_off00006446.bin
8b1b51e6228fdc9650fa24152b1b7f272427408116855cfdbd7c3d0194f83bbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6446 19592 bytes

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