Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d0f394b18bd7f83…

MALICIOUS

PDF

35.5 KB Created: 2021-07-06 00:55:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: f56a0e21c0f473bcd104a71c7a852956 SHA-1: deb294ef95e968e23f29055c1755df4ddb44c469 SHA-256: 2d0f394b18bd7f83ea185b2a631e71f9aa5c3762c430db524741a167f675b4e1
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/479516143/minecraft-cheats-pc-2021-game-hack PDF link annotation
    • http://e-lib.smaxaverius5.sch.id/repository/roblox-code-lyoko-hack-xanafied_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/free-minecraft-windows-10-account_GM479516143.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/tiktok-free-nose-job_GM835599320.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/free-minecraft-svg-cutting-files_GM479516143.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/how-to-get-free-roblox-hair_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/how-to-get-free-robux-hack-without-human-verification_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-games-hack_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-hack-without-verification-for-iphone_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/download-apps-for-robux_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/is-minecraft-free-on-switch_GM479516143.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/free-online-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/robux-hack-sin-descargar-nada_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-hack-ios-download-2021_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_off00003574.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3574 22492 bytes
SHA-256: 809513dff10faad0bd562ec9d7f10334a3dd0b0b5bbb6d255837d5cc3c53ece3
font_01_sfnt_off0000674d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x674D 18576 bytes
SHA-256: 11b6374ea2dfac1da0f66ea94b046efa9738583723302d091b91c4548524e6a8

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