Malicious PDF — malware analysis report

Static analysis result for SHA-256 5be655199ddc8f8d…

MALICIOUS

PDF

42.5 KB Created: 2021-05-12 19:30:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: a3dc87b4997f1e61b11f3641db8c8a99 SHA-1: db1899b82406f5c3f7557574d890671326e3c1b0 SHA-256: 5be655199ddc8f8d18bc504f35aaff61d4fc8006a6c9e8ca8e406d9aa875c336
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link that redirects to a URL associated with game hacks, indicating a social engineering lure. The ML classifier also flagged this PDF as malicious. The primary malicious URL identified is https://netcdn.xyz/app/406889139/download-hack-coin-master-game-hack, which likely serves as a landing page for malware or further phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/406889139/download-hack-coin-master-game-hack PDF link annotation
    • http://www.fkunismuh.org/perpustakaan/repository/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/oprewards-points-generator_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/aternos-free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/roblox-adopt-me-hacks-2021_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/100-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/earn-roblox_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/robux-online_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/apk-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/coin-spin-link_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/coin-master-free-spins-2021-haktuts_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/roblox-script-hack_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/minecraft-pc-free_GM479516143.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/free-spins-coin-master-facebook_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_003_off00004acf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4ACF 24684 bytes
SHA-256: e84f543cffb40b3781de5bb8735d1965c0912cb69c3e0a82350ae2fdda30aa2d
font_01_sfnt_off000083b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83B5 18296 bytes
SHA-256: 014eb3bb80a3687b4d2f2309fc9b410fcca0ecdce13dd0dc67b7e2f0e819dc99

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