Malicious PDF — malware analysis report

Static analysis result for SHA-256 20014eda39446a0d…

MALICIOUS

PDF

35.0 KB Created: 2021-07-06 07:52:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 2ad2b959fd8db65777b0ff4089280909 SHA-1: ff0e227763e1ed2b267b13fdb4595fc13f6c6c49 SHA-256: 20014eda39446a0dbce61f776e615acc067b4b416e89f62ff131f1c8ef488017
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/roblox-hack-apk-game-hack PDF link annotation
    • http://sttlets.education/senayan//repository/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/get-free-roblox-cards_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/what-is-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-hack-roblox-accounts-with-cookie-venom_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/tiktok-free-followers-instantly_GM835599320.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-roblox-accounts-girl_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-hack-youtubers-roblox-account_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-free-robux-on-ipad-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-hack-mod-game-download_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/como-ser-un-hacker-en-house-of-keys-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-cheat-for-brick-bronze-all-pokemon_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/25-000-free-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/hack-volar-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/free-roblox-script-executor_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/follow-bot-roblox-hack_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-hack-that-actually-works_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/minecraft-cheat-client_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/descargar-roblox-hackeado-para-android-2021_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_off00003078.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3078 23028 bytes
SHA-256: 91e9a012ed7a0b03eecceb259174b63c819bb1afbbc33210d8e3b691cd30393d
font_01_sfnt_off00006479.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6479 18832 bytes
SHA-256: 306f83865665730cccb200b9769a14693e944a35f37b3076e40f03dcf922f572

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