Malicious PDF — malware analysis report

Static analysis result for SHA-256 efb6c07171bce8e3…

MALICIOUS

PDF

33.2 KB Created: 2021-06-22 19:39:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f49e6d2c5d5bf314d19b500e8eefed88 SHA-1: 060c6a49aac005528805fd76634ba1914f01d311 SHA-256: efb6c07171bce8e31d3f6fc7f5c21a437e0ea235a1ee4ad9e0442841b09bf55e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks, specifically mentioning 'Minecraft Life Hacks', and includes a link to a redirector. The ML classifier strongly flagged this PDF as malicious. The embedded URL points to a site that likely hosts a malicious payload or further redirects. No scripts were extracted from this sample.

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/479516143/minecraft-life-hacks-game-hack PDF link annotation
    • https://www.hearcolors.com.mx/img/blog/files/pokemon-go-free-8-generation_GM1094591345.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/free-robux-scam_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/free-gold-cards-coin-master_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/coin-master-hack-apk-with-fb-login-2021_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/coin-master-hack-blog_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/how-to-hack-coin-master-apkmody_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/how-to-get-minecraft-for-free-on-tablet_GM479516143.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/fast-robux-online_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/robuxglobalcom_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/without-pokemon-go-free-remote-raid-pass_GM1094591345.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/free-robux-quiz_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/minecraft-java-edition-free-download_GM479516143.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/free-coin-master-spins-links-2021_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/coin-master-free-spins-link-facebook-page_GM406889139.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_off00002f40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F40 22076 bytes
SHA-256: 21e0190a98e35093ed2181b52ddc0c32a8379aa872a4377d663b0682d4a95a96
font_01_sfnt_off00005fd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD9 18024 bytes
SHA-256: 3a120d64b896f67b09dec491f1c88395cd1b98a1e2a7d14c7c33e3cd7fd92860