Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e2e2dee8cf34a5f…

MALICIOUS

PDF

44.1 KB Created: 2021-05-13 12:00:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 5d5a6dde6f59aa9c99a1ab11fc910e93 SHA-1: 3b4d9a2e0e038aff2371d6fcee63f3b671eb882d SHA-256: 9e2e2dee8cf34a5f4befeae805490ce0412f3310f0ae8cea34036455885ec868
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA and a download button, aiming to trick the user into downloading a malicious payload. The embedded URL and document body content, which mentions 'Roblox Hack Unlimited Robux', strongly suggest a social engineering lure for malware distribution. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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/roblox-hack-unlimited-robux-game-hack
    • http://indotec.fr/images/websites-that-give-you-free-robux_GM431946152.pdf
    • http://indotec.fr/images/coin-master-free-link-today_GM406889139.pdf
    • http://indotec.fr/images/hack-to-get-free-spins-on-coin-master_GM406889139.pdf
    • http://indotec.fr/images/how-to-change-roblox-username-for-free-2021_GM431946152.pdf
    • http://indotec.fr/images/7-year-old-roblox_GM431946152.pdf
    • http://indotec.fr/images/free-robux-on-iphone_GM431946152.pdf
    • http://indotec.fr/images/roblox-robux-hack-generator_GM431946152.pdf
    • http://indotec.fr/images/roblox-how-to-get-free-clothes_GM431946152.pdf
    • http://indotec.fr/images/free-robux-no-human-verification-and-no-survey_GM431946152.pdf
    • http://indotec.fr/images/minecraft-diamond-finder-hack_GM479516143.pdf
    • http://indotec.fr/images/free-coin-master-link-2021_GM406889139.pdf
    • http://indotec.fr/images/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdf
    • http://indotec.fr/images/freerobuxhack-us-2021_GM431946152.pdf
    • http://indotec.fr/images/coin-master-free-spain_GM406889139.pdf
    • http://indotec.fr/images/how-to-get-free-robux-without-human-verification_GM431946152.pdf
    • http://indotec.fr/images/hacks-para-roblox_GM431946152.pdf
    • http://indotec.fr/images/free-robux-hack-us_GM431946152.pdf
    • http://indotec.fr/images/hacks-for-minecraft-windows-10_GM479516143.pdf
    • http://indotec.fr/images/coin-master-hack-extension_GM406889139.pdf
    • http://indotec.fr/images/robuxhub-net_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004cbd.bin
b8d0fb5830f7b9f7c55aad91b44432d870beec98a07f580861a92f752fb226f6		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CBD 25208 bytes
font_01_sfnt_off00008790.bin
c229ae85f225584a05b8ae3a5d05ef5eb919d65508796bcf435d04f59e516df3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8790 19168 bytes

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