Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ed6519f49a57788…

MALICIOUS

PDF

35.5 KB Created: 2021-07-03 20:19:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: f4ead2ed43835f6f89459a44a1966b55 SHA-1: 5037d6469b8fe77c42ed128face0a95df38d08b0 SHA-256: 2ed6519f49a57788a4fe13cd68b84aec02b39e972fcd19794fed7f2afee70324
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.tw/app/431946152/websites-that-give-free-robux-game-hack PDF link annotation
    • http://digilib.unla.ac.id/repository/roblox-commands-hack-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/pokemon-go-free-license-key_GM1094591345.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/tiktok-likes-for-free_GM835599320.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-do-we-get-free-robux-in-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roman-colosseum-roblox-free-model_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-fire-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/does-roblox-give-obc-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-mod-apk-hack_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/join-the-group-for-a-free-sword-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-golden-card-hack_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-link_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/pokemon-go-joystick-ios-2021-free_GM1094591345.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-free-in-app-purchases_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
font_00_sfnt_off00003242.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3242 22652 bytes
SHA-256: 3598eab0fd7392b877b2ab63f4165325e44780222203f4a3e6879b0aed796fb4
font_01_sfnt_off000064b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B3 19416 bytes
SHA-256: f8394d671e5a11836b03a093da58394aaa149eff0a2ff6c87887574e51404eb5

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