Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4d89b3c0c6faaae…

MALICIOUS

PDF

33.8 KB Created: 2021-06-30 17:15:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: f0e45f3f88d0ea74bada6f6f056773bc SHA-1: bda10dd79b29ba29a733db7df07a0bc823455f46 SHA-256: e4d89b3c0c6faaae6b07f9b30b8e6fcb0d744072d5889a97643eb8bf36e830a1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a high-severity heuristic firing indicating it links to a 'free generator / game hack' lure. The document body and extracted URLs reinforce this, pointing to sites offering game cheats and hacks. This suggests the file is designed to trick users into visiting potentially malicious websites that may host further malware or phishing content.

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.co/app/431946152/free-roblox-promo-codes-gen-game-hack PDF link annotation
    • http://arthakranti.org/images/free-robux-glitch_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/green-lego-cats-free-robux_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/free-adopt-me-promo-codes-roblox-july-2021_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/roblox-free-accessories_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • http://arthakranti.org/images/coin-master-hack-generator_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/roblox-games-that-give-free-clothes_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/pastebin-roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/get-me-free-robux_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/get-free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://arthakranti.org/images/free-robux-no-human-verification-and-no-download_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/check-it-free-roblox_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://arthakranti.org/images/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://arthakranti.org/images/how-to-get-free-robux-on-roblox-2021-no-hacks_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_off00002c70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C70 22400 bytes
SHA-256: 09e847bcd928c6be420fdfb0374d6427b719cc7909509b4b575287d1befc3b16
font_01_sfnt_off00005e7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E7F 19236 bytes
SHA-256: f388dbdd3d5531b35936f72f3f50298b61067f43ea35e8027065e317e80c93ab

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