Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ee267487107767a…

MALICIOUS

PDF

45.4 KB Created: 2021-05-13 12:48:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 59713444e3772d076a0dd2a920eeb6e3 SHA-1: f29f3c2750f9cc1ab3490ef04a7983a195d4adfd SHA-256: 4ee267487107767a8502ac989ea139ce7f30a5763db593fa76cb7bcb5e5f4d36
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 0.9507

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/como-hackear-el-juego-coin-master-en-espaol-game-hack PDF link annotation
    • http://www.fluidtech.hu/images/coin-master-free-download-for-pc_GM406889139.pdfIn PDF document text
    • http://www.fluidtech.hu/images/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://www.fluidtech.hu/images/wurst-mc_GM479516143.pdfIn PDF document text
    • http://www.fluidtech.hu/images/moon-active-games_GM406889139.pdfIn PDF document text
    • http://www.fluidtech.hu/images/coin-master-apk-hack-2021-ios_GM406889139.pdfIn PDF document text
    • http://www.fluidtech.hu/images/roblox-studio-free_GM431946152.pdfIn PDF document text
    • http://www.fluidtech.hu/images/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.fluidtech.hu/images/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://www.fluidtech.hu/images/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • http://www.fluidtech.hu/images/coin-master-34-4-hack_GM406889139.pdfIn PDF document text
    • http://www.fluidtech.hu/images/mcpe-free-download_GM479516143.pdfIn PDF document text
    • http://www.fluidtech.hu/images/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.fluidtech.hu/images/hack-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.fluidtech.hu/images/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://www.fluidtech.hu/images/how-to-get-free-skins-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.fluidtech.hu/images/free-things-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.fluidtech.hu/images/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://www.fluidtech.hu/images/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://www.fluidtech.hu/images/coin-master-free-coins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://www.fluidtech.hu/images/how-do-you-get-free-roebucks_GM431946152.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_off00004854.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4854 25644 bytes
SHA-256: 01583b6533f14afed3c210001ac1f988712b5162069bd890dbab6369e557f317
font_01_sfnt_off00008125.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8125 3528 bytes
SHA-256: 31ffd373860b8ed9b79df22a5f27ffdf5ed6bd941932d6f293a8b933a57de637
font_02_sfnt_off00008d99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D99 18820 bytes
SHA-256: 9083091ab5034e7f8b54d6ac024e3b26c7561895c47ec5e954bca62b6dbdf25d

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