Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd1025bb6d9605da…

MALICIOUS

PDF

43.2 KB Created: 2021-05-19 11:08:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0e9b68cbc68a7a7890a65de5fd346537 SHA-1: e535a8941010cd3fdc0034aa67e9b30ca27233a5 SHA-256: cd1025bb6d9605da8ba0937dd047a7ae808ec7f80b2f9987494e8af055610d94
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains a lure for free Robux, directing users to a URL that likely hosts a malicious payload. The presence of embedded URLs and a high ML classifier score indicate malicious intent. The document also instructs the user to copy/paste content into a shell, suggesting an attempt to trick the user into executing commands.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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.xyz/app/431946152/microsoft-bing-free-robux-game-hack
    • http://agritrade-ukraine.com/images/how-to-downgrade-minecraft-pe_GM479516143.pdf
    • http://agritrade-ukraine.com/images/toolbox-mod_GM479516143.pdf
    • http://agritrade-ukraine.com/images/google-moon-active_GM406889139.pdf
    • http://agritrade-ukraine.com/images/roblox-games-to-play-for-free_GM431946152.pdf
    • http://agritrade-ukraine.com/images/coin-master-mod-version-free-download-2021_GM406889139.pdf
    • http://agritrade-ukraine.com/images/google-how-do-you-get-free-robux_GM431946152.pdf
    • http://agritrade-ukraine.com/images/free-robux-no-survey_GM431946152.pdf
    • http://agritrade-ukraine.com/images/card-hack-in-coin-master_GM406889139.pdf
    • http://agritrade-ukraine.com/images/coin-master-free-spins-uk_GM406889139.pdf
    • http://agritrade-ukraine.com/images/coin-master-how-to-get-japan-sushi-card-free_GM406889139.pdf
    • http://agritrade-ukraine.com/images/how-do-you-get-free-coins-in-coin-master_GM406889139.pdf
    • http://agritrade-ukraine.com/images/get-free-minecraft-account_GM479516143.pdf
    • http://agritrade-ukraine.com/images/coin-master-hack-download-2021_GM406889139.pdf
    • http://agritrade-ukraine.com/images/hack-coin-master-game_GM406889139.pdf
    • http://agritrade-ukraine.com/images/how-do-u-get-robux_GM431946152.pdf
    • http://agritrade-ukraine.com/images/is-it-possible-to-get-free-robux_GM431946152.pdf
    • http://agritrade-ukraine.com/images/hack-coin-master-apk-31_GM406889139.pdf
    • http://agritrade-ukraine.com/images/coin-master-games-hack_GM406889139.pdf
    • http://agritrade-ukraine.com/images/roblox-no-download-hack_GM431946152.pdf
    • http://agritrade-ukraine.com/images/gamehunters-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000048f4.bin
64a0099d3130cf1c3731e18fc6d2ee580568e7e1f5794d84ffab6eee6dd06b40
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48F4 27144 bytes
font_01_sfnt_off0000850c.bin
f6da71d3ec7876d1f2450260025b1db4712d77c7886386833aafb50cc2347919
pdf-font-stream PDF embedded font (sfnt) at offset 0x850C 18720 bytes