Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8fa7b766c8dc52f…

MALICIOUS

PDF

34.3 KB Created: 2021-07-09 06:32:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 06055a7eb46315e4a3b4f4af6df350b6 SHA-1: d3d44e74c3dd1f6f84aabb3eecdb8b09e6ad771d SHA-256: e8fa7b766c8dc52f0c5f77c94172aa4e2aa5c5fdcc1844281506c53fba770c1d
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.tw/app/479516143/how-to-download-minecraft-hacks-game-hack PDF link annotation
    • https://digilib.stimlog.ac.id/repository/hack-para-roblox-2021-julio_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/synapse-x-hack-roblox-downlod_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-roblox-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/minecraft-alt-accounts-free_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-hack-commands-and-lua-c_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-free-spins-twitter_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-thomas-wooden-railway-free-demo_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-be-a-vip-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-do-you-hack-an-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-for-free_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-minecraft-survival-server_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/hacks-roblox-the-streets_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/smart-lodhi-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-images_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-real-free-spins_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
font_00_sfnt_off00003132.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3132 22112 bytes
SHA-256: 64a73353585071f9a165ca5b8dc1f156774cf4fefd81840b6d42471fb5c40a27
font_01_sfnt_off000061e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E0 18748 bytes
SHA-256: d3c6952994d6e24d3bacf5184ddbc3a45400015c11867e6fcafaa525ffd68a7f

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