Malicious PDF — malware analysis report

Static analysis result for SHA-256 622f63142f6705eb…

MALICIOUS

PDF

35.5 KB Created: 2021-07-03 13:28:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 07a131089be179cc567f446f48d29bf2 SHA-1: d576870049878ff4c158a4d85858a51f41bd49a9 SHA-256: 622f63142f6705eb608f3ce315f220d6a8beedc243acda53bac597de44a18827
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures related to game hacks and free in-game currency, directing users to external URLs. The primary URL, http://netcdn.tw/app/406889139/how-to-duplicate-coin-master-spin-hack-game-hack, is flagged as a redirector for game hacks. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or scam attempt, likely initiated via a spearphishing attachment.

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.tw/app/406889139/how-to-duplicate-coin-master-spin-hack-game-hack PDF link annotation
    • http://pustaka.kebudayaan.kemdikbud.go.id/repository/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • http://pustaka.kebudayaan.kemdikbud.go.id/repository/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.kebudayaan.kemdikbud.go.id/repository/robux-hack-no-downloading-games_GM431946152.pdfIn PDF document text
    • http://pustaka.kebudayaan.kemdikbud.go.id/repository/free-minecraft-mods-for-pc_GM479516143.pdfIn PDF document text
    • http://pustaka.kebudayaan.kemdikbud.go.id/repository/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.kebudayaan.kemdikbud.go.id/repository/free-roblox-codes-2021-july_GM431946152.pdfIn PDF document text
    • http://pustaka.kebudayaan.kemdikbud.go.id/repository/coin-master-daily-free-spins-blog_GM406889139.pdfIn PDF document text
    • http://pustaka.kebudayaan.kemdikbud.go.id/repository/free-999m-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.kebudayaan.kemdikbud.go.id/repository/free-roblox-rc7_GM431946152.pdfIn PDF document text
    • http://pustaka.kebudayaan.kemdikbud.go.id/repository/mcpe-master-hack-unlimited-coins-apk_GM406889139.pdfIn PDF document text
    • http://pustaka.kebudayaan.kemdikbud.go.id/repository/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://pustaka.kebudayaan.kemdikbud.go.id/repository/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.kebudayaan.kemdikbud.go.id/repository/coin-master-20-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.kebudayaan.kemdikbud.go.id/repository/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.kebudayaan.kemdikbud.go.id/repository/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://pustaka.kebudayaan.kemdikbud.go.id/repository/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.kebudayaan.kemdikbud.go.id/repository/coin-master-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.kebudayaan.kemdikbud.go.id/repository/free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://pustaka.kebudayaan.kemdikbud.go.id/repository/how-to-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://pustaka.kebudayaan.kemdikbud.go.id/repository/gold-card-coin-master-free_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003376.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3376 22908 bytes
SHA-256: 5c420f5e280913587901df4ef73d54ec5f41b27d30b34ffef1bff16b5bc32863
font_01_sfnt_off000066af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66AF 18728 bytes
SHA-256: a3fdb11da00729fba234c6415a747df032fafb4afd6d337c839e921ae43cfe99

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