Malicious PDF — malware analysis report

Static analysis result for SHA-256 f59701575794912f…

MALICIOUS

PDF

45.7 KB Created: 2021-05-12 07:31:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: f2099d4dafd6b95826929be330bc830a SHA-1: 9f2b7c132a6d0702aaff162ea97eaaeb2cd3f44b SHA-256: f59701575794912f3f293a753058abdad754f90638bce855271f710aa110f3a9
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 https://netcdn.xyz/app/479516143/free-minecraft-java-edition-game-hack PDF link annotation
    • https://elearning.man1bengkalis.id/__statics/gudangsoal/files/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • https://elearning.man1bengkalis.id/__statics/gudangsoal/files/free-robux-android_GM431946152.pdfIn PDF document text
    • https://elearning.man1bengkalis.id/__statics/gudangsoal/files/cute-free-roblox-clothes_GM431946152.pdfIn PDF document text
    • https://elearning.man1bengkalis.id/__statics/gudangsoal/files/coin-master-game-hack_GM406889139.pdfIn PDF document text
    • https://elearning.man1bengkalis.id/__statics/gudangsoal/files/roblox-gang-rape_GM431946152.pdfIn PDF document text
    • https://elearning.man1bengkalis.id/__statics/gudangsoal/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://elearning.man1bengkalis.id/__statics/gudangsoal/files/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • https://elearning.man1bengkalis.id/__statics/gudangsoal/files/free-robux-today_GM431946152.pdfIn PDF document text
    • https://elearning.man1bengkalis.id/__statics/gudangsoal/files/inappropriate-roblox-games-2021_GM431946152.pdfIn PDF document text
    • https://elearning.man1bengkalis.id/__statics/gudangsoal/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://elearning.man1bengkalis.id/__statics/gudangsoal/files/roblox-script-hack_GM431946152.pdfIn PDF document text
    • https://elearning.man1bengkalis.id/__statics/gudangsoal/files/wurst-client-download_GM479516143.pdfIn PDF document text
    • https://elearning.man1bengkalis.id/__statics/gudangsoal/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man1bengkalis.id/__statics/gudangsoal/files/roblox-promo-codes-2021-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man1bengkalis.id/__statics/gudangsoal/files/how-to-change-your-roblox-username-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.man1bengkalis.id/__statics/gudangsoal/files/descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
    • https://elearning.man1bengkalis.id/__statics/gudangsoal/files/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man1bengkalis.id/__statics/gudangsoal/files/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • https://elearning.man1bengkalis.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-laptop_GM479516143.pdfIn PDF document text
    • https://elearning.man1bengkalis.id/__statics/gudangsoal/files/hack-coin-master-apk-2021_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
stream_003_off00004ffa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FFA 29020 bytes
SHA-256: ed30dd32e202f302dc78457b45e84dccb60f722337da8c13f01f21768e811d7f
font_01_sfnt_off000090f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90F9 18164 bytes
SHA-256: c8dc3c0ccaec2cbfabf4f7c22776233ed86b35e7dce69fc624c99833f95d0764

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