Malicious PDF — malware analysis report

Static analysis result for SHA-256 8620f3ef80ad7179…

MALICIOUS

PDF

34.4 KB Created: 2021-06-18 16:03:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 42490b4df23783066e68605c9c90fe19 SHA-1: 90146f09f8d7f6bd8ea21d83b1eda190d2b794af SHA-256: 8620f3ef80ad7179e6856f11d986e8bd579a324c086712cbd3fb049a3222ded2
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/stickmasterluke-free-robux-game-link-game-hack PDF link annotation
    • http://demenagementlandry.com/images/get-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-fun-free-spins_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-tiktok-followers-no-human-verification-2021_GM835599320.pdfIn PDF document text
    • http://demenagementlandry.com/images/hack-roblox-steven-s_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-free-coins-and-spins-group_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-free-gift-links-2021_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/rbx-place-free-robux_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-hack-unlimited-spins-apk_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-mod-apk-free-download-for-android_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/how-to-get-a-free-raid-pass_GM1094591345.pdfIn PDF document text
    • http://demenagementlandry.com/images/roblox-city-free-game_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/roblox-hacks-intitle-indexof_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-free-2021-spin-link-today_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
    • http://demenagementlandry.com/images/how-to-get-free-robux-hack-download_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/games-that-give-you-free-robux_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_off00002f6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F6C 22192 bytes
SHA-256: 2bc88afe4c0464d997b3d1907004ab3bdc6e2620678125baeeacfc0fc8324305
font_01_sfnt_off000060be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60BE 19260 bytes
SHA-256: 60f607f955c3c8c0f299f2000f026880c0108975244033f105f538476ff5ea73

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