Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ca63bbb2e4554c0…

MALICIOUS

PDF

34.7 KB Created: 2021-07-06 21:05:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: f26743bad3c089a7940c904783878c26 SHA-1: 9366fd22fbf5e69ab3d435a2b87637afe4ec3ea7 SHA-256: 0ca63bbb2e4554c0f7f771aefd4d9d0f0feff3a463aac4a4d4b3506b3c5397cd
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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/406889139/coin-master-free-spins--coins-2021-game-hack PDF link annotation
    • http://www.alrashed-alsaleh.com/userfiles/files/robux-hack-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/coin-master-free_GM406889139.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/free-minecraft-windows-10-account_GM479516143.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/tiktok-follower-bot-free_GM835599320.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/inspect-element-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/get-coin-master-spins-free_GM406889139.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/shiny-teeth-roblox-free_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/roblox-free-hats_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/avatar-de-roblox_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/roblox-free-animations_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/how-to-get-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/microsoft-roblox_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/roblox-apocalypse-rising-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/rbx-earn_GM431946152.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/coin-master-free-spins-link-hack_GM406889139.pdfIn PDF document text
    • http://www.alrashed-alsaleh.com/userfiles/files/minecraft-free-ios_GM479516143.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_off00003124.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3124 22636 bytes
SHA-256: 0639ced814af5e391870f587980998ef7985c3072b6efda4cb39b904802ad729
font_01_sfnt_off000063cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63CF 18576 bytes
SHA-256: a126babb65047b6746617d7d7f27a00b485a4a24246b96e57b4b97a03add53e0

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