PDF static analysis report

Static analysis result for SHA-256 ef5a532ea370d095…

SUSPICIOUS

PDF

34.7 KB Created: 2021-07-05 21:30:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: c7957be5272b68a293706d16d99f46aa SHA-1: 0a98fe74d1e1544e93fac8045dbd6722c62226de SHA-256: ef5a532ea370d095eb3eef778500fd700116016a87009b5e7e58ffb9b7d0c8e3
42 Risk Score

Malware Insights

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

The document contains multiple embedded URLs and a prominent call-to-action related to obtaining free Robux, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious, supporting the suspicious nature of the content. The primary URL http://netcdn.tw/app/431946152/how-to-get-free-robux-no-human-verification-game-hack is likely the destination for the malicious payload or further redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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.tw/app/431946152/how-to-get-free-robux-no-human-verification-game-hack PDF link annotation
    • https://linhkien247.vn/public/upload/files/how-to-hack-roblox-with-cheat-engine-65_GM431946152.pdfIn PDF document text
    • https://linhkien247.vn/public/upload/files/play-paid-games-free-roblox_GM431946152.pdfIn PDF document text
    • https://linhkien247.vn/public/upload/files/free-robux-pc-2021_GM431946152.pdfIn PDF document text
    • https://linhkien247.vn/public/upload/files/coin-master-free-spins-and-coins-app-download_GM406889139.pdfIn PDF document text
    • https://linhkien247.vn/public/upload/files/download-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • https://linhkien247.vn/public/upload/files/roblox-hack-generator-club_GM431946152.pdfIn PDF document text
    • https://linhkien247.vn/public/upload/files/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • https://linhkien247.vn/public/upload/files/promo-code-free-robux_GM431946152.pdfIn PDF document text
    • https://linhkien247.vn/public/upload/files/coin-master-link-for-spins_GM406889139.pdfIn PDF document text
    • https://linhkien247.vn/public/upload/files/minecraft-windows-10-free-trial_GM479516143.pdfIn PDF document text
    • https://linhkien247.vn/public/upload/files/roblox-cheat-robux-download_GM431946152.pdfIn PDF document text
    • https://linhkien247.vn/public/upload/files/roblox-apocalypse-rising-hack-2021-still-working_GM431946152.pdfIn PDF document text
    • https://linhkien247.vn/public/upload/files/minecraft-pe-mod-menu_GM479516143.pdfIn PDF document text
    • https://linhkien247.vn/public/upload/files/roblox-car-crushers-2-hack_GM431946152.pdfIn PDF document text
    • https://linhkien247.vn/public/upload/files/minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://linhkien247.vn/public/upload/files/roblox-free-items-2021_GM431946152.pdfIn PDF document text
    • https://linhkien247.vn/public/upload/files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • https://linhkien247.vn/public/upload/files/roblox-ingame-item-hack_GM431946152.pdfIn PDF document text
    • https://linhkien247.vn/public/upload/files/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • https://linhkien247.vn/public/upload/files/roblox-its-free-advert_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_off00003094.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3094 22176 bytes
SHA-256: 4e877332f206eb9e7be8a062e6ee9befeed421deeb5bef85ee95c666df0a342d
font_01_sfnt_off00006160.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6160 19496 bytes
SHA-256: 1b5d617a8bdf7849f857e8bf3a00ea7a9d2795cdb388484b070bb3e34f65ceb1