Malicious PDF — malware analysis report

Static analysis result for SHA-256 bff6268a7e5e7697…

MALICIOUS

PDF

33.3 KB Created: 2021-07-04 12:30:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: fd8b6c9df84c50a6a0cae90961b32b97 SHA-1: 738416b4fb4f676f8de5ac81d1c59e67feab96ff SHA-256: bff6268a7e5e769791b8f98eb40f8c5a79ea8a220dedbd5f3bf063c906572f0c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a 'free Minecraft Windows 10' hack, directing users to a suspicious URL. This indicates a likely attempt to trick users into downloading malware or visiting a phishing site. The ML classifier also strongly flagged this PDF as malicious.

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/get-minecraft-windows-10-free-game-hack PDF link annotation
    • http://lib.akpnbahtera.ac.id/repository/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/roblox-wls-3-hack_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/free-minecraft-generator_GM479516143.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/robux-free-promo-codes_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/coin-master-free-spins-8-14-2021_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/roblox-hacking-vpn_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/coin-master-hack-mod-apk-download_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/coin-master-free-spin-app-apk_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_off00002d9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D9A 21828 bytes
SHA-256: a69825f16b3a36a017a5c97d8ca56f26fce1c88fee476452ee3ac32bc3050c5a
font_01_sfnt_off00005da1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA1 18812 bytes
SHA-256: 611e0fe8ef0e09460557208b470d6bb305c401f6b817a80b09e66ff1eb668ddb

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