Malicious PDF — malware analysis report

Static analysis result for SHA-256 65ecea6c8d0afdc6…

MALICIOUS

PDF

44.2 KB Created: 2021-06-03 08:13:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a6f4c005df2a5416520837bf9234683c SHA-1: 90ed30c228e76903e0eeec9c1335685e17250d29 SHA-256: 65ecea6c8d0afdc6b31cf05cbcf3712733dff8938a3692bc163c4f6d60f8e496
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'game hacking' and directs users to a URL that appears to be a redirector for potentially malicious content. The ML classifier strongly flagged this PDF as malicious, and multiple heuristics indicate a redirection to external content. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to lead the user to a malicious resource, likely for malware download or phishing.

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/479516143/how-to-hack-a-minecraft-server-and-make-yourself-op-game-hack PDF link annotation
    • http://librarysenior.com//repository/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • http://librarysenior.com/repository/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://librarysenior.com/repository/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • http://librarysenior.com/repository/free-gfx-roblox_GM431946152.pdfIn PDF document text
    • http://librarysenior.com//repository/minecraft-nintendo-switch-digital-code-free_GM479516143.pdfIn PDF document text
    • http://librarysenior.com/repository/coin-master-free-raid-link_GM406889139.pdfIn PDF document text
    • http://librarysenior.com/repository/google-play-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://librarysenior.com//repository/games-that-can-be-hacked_GM431946152.pdfIn PDF document text
    • http://librarysenior.com//repository/free-robux-mod_GM431946152.pdfIn PDF document text
    • http://librarysenior.com/repository/coin-master-hack-ios-no-jailbreak_GM406889139.pdfIn PDF document text
    • http://librarysenior.com//repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://librarysenior.com//repository/roblox-free-clothes-codes_GM431946152.pdfIn PDF document text
    • http://librarysenior.com/repository/can-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://librarysenior.com/repository/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • http://librarysenior.com/repository/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://librarysenior.com//repository/hack-my-game-xyz-coin-master_GM406889139.pdfIn PDF document text
    • http://librarysenior.com//repository/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://librarysenior.com//repository/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
    • http://librarysenior.com/repository/free-minecraft-addons_GM479516143.pdfIn PDF document text
    • http://librarysenior.com/repository/how-much-tiktok-free-account_GM835599320.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_off000050cc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50CC 24620 bytes
SHA-256: 6a2dfe0b5adf86e11e33f0752838865861266765bd388f69b3b96a16ef610831
font_01_sfnt_off00008857.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8857 18884 bytes
SHA-256: c6c75348c8512da505ae943a266b7446b2e14ebdee3fe9748eb8d749779a3ee4

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