Malicious PDF — malware analysis report

Static analysis result for SHA-256 afc2bf21b5e566a1…

MALICIOUS

PDF

34.5 KB Created: 2021-06-19 20:25:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 7490a78b99191a8a7b03aab002973956 SHA-1: 6363757819f8d7e64ddf3009d304fa6c4f7ad2a2 SHA-256: afc2bf21b5e566a11aac73416708b461973f78000fa26e357cb5085d852a758b
82 Risk Score

Malware Insights

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

The document displays a fake CAPTCHA or human verification prompt, a common lure for users seeking game cheats or hacks. It contains an external URI pointing to a URL associated with game hacks, suggesting the user is expected to click through to download a payload. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-apps-info-hack-generator-game-hack PDF link annotation
    • https://www.vizyonproduction.com/application/uploads/assets/files/minecraft-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/coin-master-hack-link-2021_GM406889139.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/is-pokemon-go-free_GM1094591345.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/rbx-center-free-robux_GM431946152.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/no-robux_GM431946152.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/how-can-i-get-robux_GM431946152.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/minecraft-games-free-download_GM479516143.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/toolbox-mod_GM479516143.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/roblox-hack-apk_GM431946152.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/how-to-hack-roblox-on-mobile_GM431946152.pdfIn PDF document text
    • https://www.vizyonproduction.com/application/uploads/assets/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003198.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3198 21820 bytes
SHA-256: c27a7705b66b7d48e63d564df61fc29712e3045397190416dab38a3c471cc884
font_01_sfnt_off000061be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61BE 18936 bytes
SHA-256: dfbc16849569ed7fab9765a8be6a9fbbaa5c86599884789dc79334d5db604884