Malicious PDF — malware analysis report

Static analysis result for SHA-256 9865ded507e95a0a…

MALICIOUS

PDF

45.6 KB Created: 2021-06-03 12:41:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 229494a60f1aa2d4941b7642f9184e2f SHA-1: 1ecbd1d671ca73453b268450032e92353a4dcfc9 SHA-256: 9865ded507e95a0aab4c5174a58bfd264c024dff002381759e217192abf9b0be
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 0.9864

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/431946152/free-robux-gift-card-generator-game-hack PDF link annotation
    • https://elibrary.ikhac.ac.id/repository/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-website_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-tiktok-hearts_GM835599320.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-game-for-pc-free-download_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/how-to-earn-robux-fast_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/roblox-executor-free_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/how-to-win-robux_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/heroes-online-roblox_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-reward-link-2021_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-free-gold-cards-link_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/abd-roblox_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-strategy_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_off000051b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51B6 26224 bytes
SHA-256: 7a345441e51b209461647faa8333b4c0eb492c2f6dd0a0b9c2efc9e08df5a7d8
font_01_sfnt_off00008eb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EB4 18640 bytes
SHA-256: 9c31dcaac4a0b50b5f0fc2170f059f54bc5506f6c6606d446db32e5f0aacf3a6

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