Malicious PDF — malware analysis report

Static analysis result for SHA-256 469cc7f08fe28ed3…

MALICIOUS

PDF

36.2 KB Created: 2021-06-28 22:56:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: ef6087148d6659a52897d30d3daece38 SHA-1: 08b71ea669ab2f580bd3eb1c692fbb86cb1d8404 SHA-256: 469cc7f08fe28ed3cc9242a52e0c83ddfc461e7f1f430f8a06bdb4b4c9990d70
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-promocode-hack-robux-pastebin-game-hack PDF link annotation
    • http://pustaka.pasca.unand.ac.id/repository/roblox-god-mode-hack-download_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-run-animation-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/como-hackear-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/cheat-code-for-camera-recorder-in-slender-reborn-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-to-cheat-on-your-roblox-girlfriend_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/get-20210-robux-free_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/ninja-animation-roblox-free_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/robux-for-free-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/get-free-robux-instantly-no-human-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/hack-robux-facile-fr_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-to-reveal-your-hacked-accounts-password-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-visual-studio-roblox-exploit-template_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-robux-generator-no-nothing_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/tiktok-comments-free_GM835599320.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-to-get-hair-free-roblox-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/aimbot-fro-roblox-download-free_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
stream_002_off0000332d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x332D 23156 bytes
SHA-256: a03ed5324ed36095e173d07dccef7ab662d9a6f69ebbad754c53b6776da398b9
font_01_sfnt_off0000671e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x671E 19608 bytes
SHA-256: 8cc685476e1158b189de4ffb95d03977a412a5a0735408ac14ada44bca5e49f6

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