Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2e48492d8ecd031…

MALICIOUS

PDF

34.3 KB Created: 2021-07-04 19:53:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: f19603bfc31262b7f0b0d1d8a5d4e9cb SHA-1: ab58a0f229aa60e7dc1a86176a24bc76b66268b3 SHA-256: c2e48492d8ecd0317f1998cd69994c8682ad0292a7509c98ecfcdbcec5727e52
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/431946152/buy-robux-free-game-hack PDF link annotation
    • http://library.yamasi.ac.id/repository/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-a-free-virtual-world_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/get-me-free-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/pubg-uc-300_GM1330123889.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/is-pokemon-go-free-to-download_GM1094591345.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-connection-lost_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-coin-spin-daily-link-net_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/robux-for-offers_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-online-hack-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/csgo-roblox-money-hack_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coins-master-hacks_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/tryrbx-site-free-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/today-coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/minecraft-cracked-client_GM479516143.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_off00002f0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F0D 22532 bytes
SHA-256: abad546479e771c00778ab71fb5a24fdd064c4c7db7ce2011a66291abdfddc9f
font_01_sfnt_off00006181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6181 18896 bytes
SHA-256: ccd8092a29b5f0d371053c4589a9eddce3d36397c57223c60c61c3f4d0a73278

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