Malicious PDF — malware analysis report

Static analysis result for SHA-256 e208ef511dd0f258…

MALICIOUS

PDF

43.1 KB Created: 2021-05-10 21:36:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: b1d4f4ae0f7a3bde6edf6c80c788dd90 SHA-1: a9804d302e95d7f5f3f09f785658c7cfd92d0443 SHA-256: e208ef511dd0f2589eb8e46a3a7e78e4f1a2f2c27d50b27d54fb5a1587608ba7
82 Risk Score

Malware Insights

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

This PDF document employs a fake CAPTCHA lure to deceive users into clicking embedded links. The primary link, https://netcdn.xyz/app/406889139/how-to-get-free-coins-for-coin-master-game-hack, likely leads to a secondary malicious download or phishing page. The document's structure and embedded URLs suggest a social engineering attempt to trick users into downloading potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/how-to-get-free-coins-for-coin-master-game-hack PDF link annotation
    • http://e-lib.smaxaverius5.sch.id/repository/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-100-spin_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/getrobux-come_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-spins_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/free-minecraft-hosting_GM479516143.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/wurst-client-112-2_GM479516143.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/gain-robux_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-cracked-apk-free-download_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/minecraft-linux-free_GM479516143.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/free-roblox-website_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/roblox-hack-client_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
stream_003_off00004d19.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D19 25740 bytes
SHA-256: 8e4a7b8d79f758b3b02c56591c8db79b3128b207eafeba8b5a22dc4f0c001dc6
font_01_sfnt_off00008798.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8798 17872 bytes
SHA-256: 8c0da9336e983259e7b63ac0942506965b31c2e675ac4d9d442a950891c70db8

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