Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b07abbefd1b4bc2…

MALICIOUS

PDF

34.4 KB Created: 2021-06-20 04:31:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 436c7991ff4df237480002fb2786e6d1 SHA-1: 15ed85ae29e21ff366cb8217eb6c557345a8cd4f SHA-256: 9b07abbefd1b4bc243067bb4443291c9041b9e7021428f2226670603e2de6b76
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.co/app/431946152/roblox-shenanigans-mod-cheat-codes-game-hack PDF link annotation
    • https://opac.umrah.ac.id/repository/free-coins-app-for-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/hexus-roblox-free-download_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-roblox-tickets-cheat_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/i-got-hacked-in-roblox-lost-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/comment-hacks-roblox-2021-download_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-discord_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/apk-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-com-games-referrer-roblox-player_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-make-roblox-audio-for-free_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/hack-para-romper-paredes-en-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-working_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-bee-swarm-simulator-cheats_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/doing-free-robux-games_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-hacks-download-free-dll_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-free-tiktok-fans_GM835599320.pdfIn PDF document text
    • https://www.roblox.com/my/tasksIn 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_off00002f80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F80 22356 bytes
SHA-256: 38aa0c9f3cc80f2a1863cec3a0fccfc9934f02b5ce12364fff0aa79b01e93b0b
font_01_sfnt_off000060f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F4 19248 bytes
SHA-256: f148d6e8629f705b3627796654d676a3d1be9e1a45a1ee3b5cad1ddf1dfab9cf

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