Malicious PDF — malware analysis report

Static analysis result for SHA-256 89d65dfe0fc3c80c…

MALICIOUS

PDF

34.6 KB Created: 2021-06-23 09:33:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0a848d62fd6e9584765954b0caa2bebb SHA-1: db28017a243d99d980e109584d30b1a664a8be7f SHA-256: 89d65dfe0fc3c80c236c79a8e75b442cd9c7f216b0aaba22ac2ad419d377d270
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/431946152/roblox-execute-script-hack-download-game-hack PDF link annotation
    • http://daskrimti-jabar.web.id/library/repository/play-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-account-roblox-2021_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-hack-tool-no-human-verification_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-money-hack_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/www-coinmaster-com_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-ho-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/best-site-for-free-coin-master_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-today_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/coin-master-hack-download-ios_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-get-free-robux-100-legit_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/jojo-roblox-items-free_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/websites-that-give-free-robux_GM431946152.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_off00002f2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F2E 22076 bytes
SHA-256: 518493abb2aad44808a4465231a69cbd7c4dc0458ddfd571d18638ae568ec894
font_01_sfnt_off00006023.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6023 19700 bytes
SHA-256: 2a511b2fd09b66f512cbdb7e7e554a36ecc989f9d85b63b86fbad43bae31435e

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