Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e6f0792e64ca011…

MALICIOUS

PDF

35.7 KB Created: 2021-06-19 00:04:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 8654958d1845c3f03f3e5590f4d7acf9 SHA-1: 9ff2c7fb630607576a2f45e2db6a95b93dd1de47 SHA-256: 4e6f0792e64ca01139f16b4012fe00e20a2ef287e319ef670b3d76d997e75401
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded URLs, with a primary lure related to 'Roblox Free Script Executor 2021'. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' indicates that the document links to a game hack redirector, suggesting a social engineering tactic to trick users into visiting malicious sites. 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.co/app/431946152/roblox-free-script-executor-2021-game-hack PDF link annotation
    • http://slim.sisminkada.net/repository/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-county-free_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-catalog-stuff-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-websites-do-roblox-quiz_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/is-roblox-studio-free_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/flip-master-free-coins_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/minecraft-pc-download-free-full-version_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-on-website_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-70-spin-link-2021_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-koul-admin-cheats_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-cheat-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/nicsterv-robux-hack_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/minecraft-pe-free_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_off000031bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31BC 22824 bytes
SHA-256: de8425153def7d5e755ed339d9f0e7aa0ddfd278f8874544d39421914bae33dd
font_01_sfnt_off00006501.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6501 19592 bytes
SHA-256: 7e26fbec9d255511b9f872b3679e6799a465a1dfde5c28e0c80b69316427523b

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