Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8ecbf471f7227bb…

MALICIOUS

PDF

41.9 KB Created: 2021-06-13 22:08:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 664ad838a8d958460a5e7e3665a63c87 SHA-1: 273d1c63b6fd26e3264ad9e80b3c21d740f03e29 SHA-256: b8ecbf471f7227bb5193b54e4fb0990c7d9ee914938c27facebc53ddc95f39f6
62 Risk Score

Malware Insights

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

This PDF document was flagged by an ML classifier as malicious. It contains multiple embedded URLs and a visual download button lure, suggesting an attempt to trick the user into downloading malware. The document body and URLs indicate a theme of game hacks, specifically related to Roblox, which is a common lure for distributing malicious software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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.co/app/431946152/roblox-dll-hacks-2021-game-hack
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/best-robux-hack-no-human-verification_GM431946152.pdf
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/666-roblox-hack_GM431946152.pdf
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/free-tiktok-followers-without-verification_GM835599320.pdf
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/hack-roblox-accounts-com_GM431946152.pdf
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/minecraft-gun-games-free_GM479516143.pdf
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/coin-master-daily-free-spins-and-coins_GM406889139.pdf
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/youtube-free-build-roblox_GM431946152.pdf
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/online-free-games-like-roblox_GM431946152.pdf
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/roblox-hack-script-pastebin_GM431946152.pdf
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/joining-groups-will-be-free-on-roblox_GM431946152.pdf
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/roblox-slurp-hack-download_GM431946152.pdf
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/how-to-hack-in-other-roblox-accounts_GM431946152.pdf
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/roblox-apk-robux-hack_GM431946152.pdf
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/free-roblox-injectors-list_GM431946152.pdf
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/free-robux-script-pastebin-2021_GM431946152.pdf
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/coin-master-free-spin-link-today-2021_GM406889139.pdf
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/free-account-for-roblox-2021_GM431946152.pdf
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/how-to-hack-roblox-arsenal_GM431946152.pdf
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/unpatchable-roblox-hack_GM431946152.pdf
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/can-you-get-minecraft-for-free_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004918.bin
e5a7ee34278d5447552c73d9017736fdc73e5e7c80694aec4d26b9729276d28a		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4918 23936 bytes
font_01_sfnt_off00007fd0.bin
276b2e264d32d94c317fa9c1cdad371fd0e08d6bbc414224806f6325671c0d2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FD0 18752 bytes

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