Malicious PDF — malware analysis report

Static analysis result for SHA-256 295673cb58f015c1…

MALICIOUS

PDF

47.2 KB Created: 2021-05-15 07:01:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 94de403ca390e73213a1c319449ae6c5 SHA-1: 2ac17bd7a3ad46f3d0cfb91af13c1c72bae74111 SHA-256: 295673cb58f015c15d13ea938cd3c14319783ec689cb07d23e9bd04135bf75e0
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure to trick users into downloading a file, likely a malicious application, from the provided URL. The document body and embedded URLs strongly suggest a scam related to obtaining free Robux or game hacks. While no scripts were directly extracted, the presence of external URIs and the fake CAPTCHA heuristic indicate a malicious intent to deceive the user into executing further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/431946152/free-robux-apk-game-hack
    • http://federcaccianucleomagenta.it/images/how-to-hack-mcpe-master-coins_GM406889139.pdf
    • http://federcaccianucleomagenta.it/images/roblox-free-no-download_GM431946152.pdf
    • http://federcaccianucleomagenta.it/images/free-robux-scam_GM431946152.pdf
    • http://federcaccianucleomagenta.it/images/how-to-get-free-robux-easy_GM431946152.pdf
    • http://federcaccianucleomagenta.it/images/coin-master-hack-software-download_GM406889139.pdf
    • http://federcaccianucleomagenta.it/images/daily-free-spins-on-coin-master_GM406889139.pdf
    • http://federcaccianucleomagenta.it/images/free-roblox-hair-to-wear_GM431946152.pdf
    • http://federcaccianucleomagenta.it/images/free-spins-for-coin-master-game_GM406889139.pdf
    • http://federcaccianucleomagenta.it/images/minecraft-aimbot_GM479516143.pdf
    • http://federcaccianucleomagenta.it/images/is-free-robux-real_GM431946152.pdf
    • http://federcaccianucleomagenta.it/images/coin-master-hack-here_GM406889139.pdf
    • http://federcaccianucleomagenta.it/images/blox-pink-robux-free_GM431946152.pdf
    • http://federcaccianucleomagenta.it/images/free-admin-roblox_GM431946152.pdf
    • http://federcaccianucleomagenta.it/images/give-me-robux-now_GM431946152.pdf
    • http://federcaccianucleomagenta.it/images/coin-master-free-food_GM406889139.pdf
    • http://federcaccianucleomagenta.it/images/free-spins-for-coin-master-app_GM406889139.pdf
    • http://federcaccianucleomagenta.it/images/roblox-free-robux-no-verification_GM431946152.pdf
    • http://federcaccianucleomagenta.it/images/get-free-robux-without-human-verification_GM431946152.pdf
    • http://federcaccianucleomagenta.it/images/free-robux-websites-2021_GM431946152.pdf
    • http://federcaccianucleomagenta.it/images/you-promised-my-son-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000046e3.bin
aad2a62980715d876f41a053cab0055335ee4e49a34f5fe0c84581b58f61620f		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46E3 28580 bytes
font_01_sfnt_off000088be.bin
450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88BE 5696 bytes
font_02_sfnt_off000095cf.bin
e9359734bc9145e2b26d31ba7f580aebc3bf98c57002eb6e857d81b76a5cddb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95CF 18360 bytes

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