Malicious PDF — malware analysis report

Static analysis result for SHA-256 2931339854a7964f…

MALICIOUS

PDF

45.7 KB Created: 2021-05-11 15:01:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: f1276440e82eae463ad26518a30b0f60 SHA-1: 3ddc37eb97b66771fa6cadd6a7874d48ca2bc5ee SHA-256: 2931339854a7964f19e092b97e5cda8e2d4b96116be42cf37eeaa7b77c142bb3
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure, designed to trick the user into clicking a link. The embedded URL, https://netcdn.xyz/app/406889139/coin-master-unlimited-spin-link-game-hack, likely leads to a download of a second-stage payload. Numerous other suspicious URLs are also present within the document body, suggesting a broader campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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 https://netcdn.xyz/app/406889139/coin-master-unlimited-spin-link-game-hack
    • http://www.friendshiptransport.net/images/coin-master-spin-link-today_GM406889139.pdf
    • http://www.friendshiptransport.net/images/jailbreak-script_GM431946152.pdf
    • http://www.friendshiptransport.net/images/how-to-get-more-robux-for-free_GM431946152.pdf
    • http://www.friendshiptransport.net/images/how-do-you-get-free-roblox-money_GM431946152.pdf
    • http://www.friendshiptransport.net/images/www-roblox-com-free-robux_GM431946152.pdf
    • http://www.friendshiptransport.net/images/how-to-get-free-robux-easy-hack_GM431946152.pdf
    • http://www.friendshiptransport.net/images/robuxy-com-free-robux_GM431946152.pdf
    • http://www.friendshiptransport.net/images/free-spins-coin-master-2021_GM406889139.pdf
    • http://www.friendshiptransport.net/images/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdf
    • http://www.friendshiptransport.net/images/get-me-robux-for-free_GM431946152.pdf
    • http://www.friendshiptransport.net/images/earn-free-robux-today_GM431946152.pdf
    • http://www.friendshiptransport.net/images/free-robux-microsoft_GM431946152.pdf
    • http://www.friendshiptransport.net/images/how-to-play-minecraft-for-free_GM479516143.pdf
    • http://www.friendshiptransport.net/images/master-free-spin_GM406889139.pdf
    • http://www.friendshiptransport.net/images/minecraft-windows-10-hacks_GM479516143.pdf
    • http://www.friendshiptransport.net/images/coin-master-gold-cards-free_GM406889139.pdf
    • http://www.friendshiptransport.net/images/free-robux-codes-2021-real_GM431946152.pdf
    • http://www.friendshiptransport.net/images/coinmaster-spin-ml-link_GM406889139.pdf
    • http://www.friendshiptransport.net/images/free-robux-glitch-2021_GM431946152.pdf
    • http://www.friendshiptransport.net/images/coin-master-free-spins-link-blogspot_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ce7.bin
6d30aa0d959aad041585b8b45c2205855e3a1a65928a714015189ff440b8ec36		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CE7 24524 bytes
font_01_sfnt_off0000855b.bin
3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676		 pdf-font-stream PDF embedded font (sfnt) at offset 0x855B 2840 bytes
font_02_sfnt_off00008f0c.bin
4b9e97571f76fbd37980e49efa03e4d0776fec80245dbf17b6cc6ba6596e58ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F0C 18584 bytes

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