Malicious PDF — malware analysis report

Static analysis result for SHA-256 218e0e95cf787199…

MALICIOUS

PDF

36.3 KB Created: 2021-06-21 19:08:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 5b6791122295368cd6b9db8555f59f1d SHA-1: ef2202e5e1ca595749dd3f4a06f0b284f5b6e0ca SHA-256: 218e0e95cf787199427aaa781c64d251bd6a758215f64c24637fe65e0a3968bf
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.co/app/406889139/coin-master-daily-free-spins-link-today-game-hack PDF link annotation
    • https://www.hearcolors.com.mx/img/blog/files/roblox-free-items-2021_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/how-to-win-attack-madness-in-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/coin-master-gift-hack_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/how-to-get-free-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/free-100-robux_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/free-robux-videos_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/mcpe-master-coins-hack-download_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/free-roblox-glasses_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/how-to-get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/500-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/roblox-login-hack_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/minecraft-hack-2021_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_off0000367f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x367F 22744 bytes
SHA-256: c431cf28db94a8a75057c809c32f47f340c48a353fc8873adae880a1c5a9a536
font_01_sfnt_off0000694c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x694C 18940 bytes
SHA-256: 5cc00af5396ac6d0bbe2617822e874747972297797067d6a5c9a01e6a5c32b4c