Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7842b95ba63766f…

MALICIOUS

PDF

35.4 KB Created: 2021-07-06 04:28:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: ee81cd0bc17e3013704c6413d38de1f5 SHA-1: 0d0bcd80a90e38e3b08a8ba46aba0b02c005754f SHA-256: f7842b95ba63766f5fbc8ca2e166e0dc3d9744d05b79e81ec4e22e4208d4a08a
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/get-free-gold-cards-in-coin-master-game-hack PDF link annotation
    • https://slims.bakrie.ac.id/textbook/repository/v3rmillion-free-roblox-injector_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-robux-hack-downloader_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/how-to-get-a-hacked-roblox-account-back_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/easy-robux-generator_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/how-to-hack-to-get-robux-in-roblox-2021_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/hack-de-roblox-booga-booga_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/how-to-hack-a-account-in-roblox-2021_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/200-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/robux-for-free-website_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/roblox-any-game-hack-script_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-sky-slayer-for-roblox_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/500-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/roblox-cheat-with-fake-paypal-checkout_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-tiktok-likes-2021_GM835599320.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/hack-coin-master-iphone_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-spins-coin-master-links-thursday-november-28-2021_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/enter-password-for-free-robux_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_off0000337a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x337A 23328 bytes
SHA-256: 882eb74a6bb250432df9a422fb0961bdbdd15a358ce7ff0307271fa5338b2800
font_01_sfnt_off000067d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67D4 18244 bytes
SHA-256: c5a46a39d15258b7d14c8d8f99d5b46560a5002efba37df2eccc105332ff8724

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