Malicious PDF — malware analysis report

Static analysis result for SHA-256 87db45b373685885…

MALICIOUS

PDF

43.4 KB Created: 2021-05-11 00:35:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 97d43f4367e271e84ec8c0d757de28a2 SHA-1: 670ad898658bde2c51bd2ec6884aba6bbb780aff SHA-256: 87db45b373685885305658bae1b26593694a97537367f54315f8b06b5b5a9bcc
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic indicating it links to a game hack generator, a common lure for malicious content. The embedded URL, 'https://netcdn.xyz/app/406889139/coin-master-how-to-get-japan-sushi-card-free-game-hack', is likely the initial landing page for a phishing or malware distribution campaign. No scripts were extracted, but the PDF structure and lure suggest an attempt to trick users into visiting a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9656

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 https://netcdn.xyz/app/406889139/coin-master-how-to-get-japan-sushi-card-free-game-hack PDF link annotation
    • https://www.gymun.cz/images/coin-master-400-spin-link-today_GM406889139.pdfIn PDF document text
    • https://www.gymun.cz/images/coin-master-hack-tool-generator_GM406889139.pdfIn PDF document text
    • https://www.gymun.cz/images/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.gymun.cz/images/free-spin-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.gymun.cz/images/free-roblox-girl-hair-not-a-model_GM431946152.pdfIn PDF document text
    • https://www.gymun.cz/images/coin-master-70-spin-link-today_GM406889139.pdfIn PDF document text
    • https://www.gymun.cz/images/minecraft-net-download-free_GM479516143.pdfIn PDF document text
    • https://www.gymun.cz/images/coin-master-hacks-to-get-spins_GM406889139.pdfIn PDF document text
    • https://www.gymun.cz/images/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.gymun.cz/images/free-800-robux_GM431946152.pdfIn PDF document text
    • https://www.gymun.cz/images/coin-master-hack-2021-app-download_GM406889139.pdfIn PDF document text
    • https://www.gymun.cz/images/minecraft-handbook_GM479516143.pdfIn PDF document text
    • https://www.gymun.cz/images/coin-master-free-spins-generator-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.gymun.cz/images/rbx-com_GM431946152.pdfIn PDF document text
    • https://www.gymun.cz/images/how-to-make-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.gymun.cz/images/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://www.gymun.cz/images/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000044d7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x44D7 24196 bytes
SHA-256: 198d56627e577c32fddd7d2926ed2168ee94a332b4a03abbda7c093ea82125d6
font_01_sfnt_off00007c53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C53 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008605.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8605 18696 bytes
SHA-256: b658d8f1c141fc8c479f08926c8ce77f4430151ae81ac58e32bab20f08e84866

Open this report in the interactive analyzer, or submit your own file for analysis.