Malicious PDF — malware analysis report

Static analysis result for SHA-256 903561ee951e02c5…

MALICIOUS

PDF

34.6 KB Created: 2021-07-01 18:28:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 1bd20862a16a09b9f517291e211cd28b SHA-1: 495a52d63483284775d4bfe52b1a100ea7cd3bd3 SHA-256: 903561ee951e02c5a5c9b29504335b5bc00dc42e01a2a934dd73e4afe8e32d68
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/best-free-roblox-lua-executor-game-hack PDF link annotation
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/roblox-hack-me_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/roblox-how-to-put-anti-cheat_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/robux-party-com-for-robux-free_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/roblox-pet-simolator-hack-script_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/coin-master-hack-xyz-apk-download_GM406889139.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/nathorix-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/how-to-get-free-infinite-robux-in-roblox-imaflynmidget_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/how-to-get-free-robux-money-on-roblox_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/guest-666-roblox-hack_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/free-robux-roblox-online-generator_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/how-to-get-2021-robux-for-free_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/how-can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/roblox-skins-boy-free_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/roblox-boxing-simulator-2-cheat-engine_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/free-roblox-games-on-computer_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/robux-free-co_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/free-best-roblox-exploits_GM431946152.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_off00002fdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FDC 22876 bytes
SHA-256: aaf83e72363e8c2baf270b6d90c0e4034cb31732c11c53fbbae805fdc525e942
font_01_sfnt_off000062c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C6 18896 bytes
SHA-256: 31239d5a1324c0a77eec7fe60015fb8b4efd96e275f56cda5731ef8be6fc1607

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