Malicious PDF — malware analysis report

Static analysis result for SHA-256 84349f7b70c32617…

MALICIOUS

PDF

33.6 KB Created: 2021-06-20 00:42:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: fe44518d773cc55663817a67f02e50dc SHA-1: 16d39f9babd8a54b00f1da18e24c9950382c67d2 SHA-256: 84349f7b70c32617dce73d03481383d479ca8d1544d69a9056d9817375e2e2e0
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/free-roblox-accounts-walang-pin-game-hack PDF link annotation
    • https://library.stikeswnpalu.ac.id/repository/coin-master-mod-apk-free-download-for-android_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-official-website_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/cheat-in-roblox-dragon-ball-z-final-stand_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/minecraft-pe-hack-client-ios_GM479516143.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/pubg-uc-nepal_GM1330123889.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/roblox-login-hack_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/como-ganar-robux-gratis-sin-hacks_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/roblox-adopt-me-hacks-2021_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/roblox-skins-free-download-girl_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/2021-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-free-gold-cards-link-2021_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-free-coin-and-spin-app_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-hack-app-2021-download_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_off00002e70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E70 21500 bytes
SHA-256: e4e314b670522fee5eb17147f001d6801154c0ecd87e14b30b32071f3a022818
font_01_sfnt_off00005d7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D7A 19364 bytes
SHA-256: a9e80d69201cf7ea26f449094c7bdb201545bcde7a2a8231dbf3823de02be341

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