Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d215bdf9eede9fb…

MALICIOUS

PDF

44.2 KB Created: 2021-06-03 10:02:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: ba0ea6b0950ba48f35109a3f4cd0359f SHA-1: fb2ec4e2dbc6484d462e028b18265057bcd5ba28 SHA-256: 6d215bdf9eede9fb4056506087236b3362794fbc23baddaabb49d342d4cc45de
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 0.9865

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.online/app/406889139/coin-master-34-4-hack-download-game-hack PDF link annotation
    • http://pustaka1.unindra.id/repository/no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/need-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/cm-free-spin-link-today_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/coin-master-free-spins-whatsapp-link_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/coin-master-extra-spins_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/how-to-get-free-coins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/apps-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/coin-master-hack-apk-35-33_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/descargar-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/how-to-get-free-spins-on-coin-master-2021_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
stream_004_off000050fc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50FC 24912 bytes
SHA-256: e8f0260dffc822274548379280702d458edbfbf759ef741dadbb21e32ec659f3
font_01_sfnt_off0000892a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x892A 18532 bytes
SHA-256: 6821ac53495cf7f2526988ccb826ca01b887b1f368dca36fba49187a568990c7

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