Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbabaa6e8ba0ecb3…

MALICIOUS

PDF

43.1 KB Created: 2021-05-12 22:12:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: cbb9bce4f85e494dd84a1e1c8f4ed85d SHA-1: c42c708b6cbc8c55f0fc359acac73110fd9f10d3 SHA-256: dbabaa6e8ba0ecb367dc4db7edc8b8336ef0bb2fbef9af8d4ca264c645b99b84
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document exhibits malicious behavior, primarily through the presentation of a fake CAPTCHA or human verification prompt to trick users. It also contains lures related to payment redirection, suggesting a scam or phishing attempt. The embedded URLs, such as https://netcdn.xyz/app/431946152/www-free-robux-com-game-hack, likely serve as the initial point of contact for downloading further malicious content or redirecting to scam sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • 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
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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/www-free-robux-com-game-hack
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/how-to-get-free-robux-easy-2021_GM431946152.pdf
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/roblox-free-robux-no-verification_GM431946152.pdf
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/free-robux-on-iphone_GM431946152.pdf
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/coin-master-free-spins-generator_GM406889139.pdf
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/free-robux-hack-generator_GM431946152.pdf
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/free-free-robux_GM431946152.pdf
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/roblox-got-talent-piano-hack_GM431946152.pdf
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/hack-the-coin-master_GM406889139.pdf
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/coin-master-hack-ios-no-jailbreak_GM406889139.pdf
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/info-roblox-com-robux_GM431946152.pdf
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/coin-master-game-legitimate-hack-without-signing-up-or-shareing_GM406889139.pdf
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/minecraft-hacked-client-download_GM479516143.pdf
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/coin-master-hack-apk-35-18_GM406889139.pdf
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today-2021_GM406889139.pdf
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/how-to-get-free-minecraft-alts_GM479516143.pdf
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/coin-master-ios-hack_GM406889139.pdf
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/pasos-para-hackear-coins-master_GM406889139.pdf
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/coin-master-free-food-for-pet_GM406889139.pdf
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/free-robux-no-verification-2021-ios_GM431946152.pdf
    • http://mtsn1sungaipenuh.id/__statics/gudangsoal/files/how-do-you-install-minecraft-for-free_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004bc1.bin
3160cd28d4e5cbe04a0965a519deb7f54ae84ea73820ce38cb460d22044212c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BC1 25420 bytes
font_01_sfnt_off00008531.bin
9f7262e815bd0044d2d3715e2ef4b4760a787eb7fc9de28673ce11fb32ae2f7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8531 18636 bytes

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