Malicious PDF — malware analysis report

Static analysis result for SHA-256 e67e3937ff95e811…

MALICIOUS

PDF

33.8 KB Created: 2021-06-24 22:21:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 5dd3dfd2181d19d70144ca0fc335cd4f SHA-1: df98c8ea902cdfa47745984f536894407d2c90db SHA-256: e67e3937ff95e8110045b5784b478271e3e6c293d57e4112a3d6edfd5aedda2c
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-coloring-pages-for-roblox-game-hack PDF link annotation
    • https://pasca.unisba.ac.id/elibrary/repository/mundo-hacker-roblox_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-item-hack-2021_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/online-roblox-free-games_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-hack-download-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/ok-google-free-roblox_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/phlego-films-roblox-free-badges_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/pokemon-go-free-coins-apk_GM1094591345.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/tiktok-followers-generator-free_GM835599320.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-hack-peoples-robux_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-get-daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-tiktok-accounts-with-followers_GM835599320.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-redeem-card-hack_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-robux-ack_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/does-cheat-engine-execute-scripts-into-roblox_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_off00002f22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F22 22028 bytes
SHA-256: 11240d65c919cbc3c391194c1544d703a5866a8ef2ed9c4d98d2c872b384d47f
font_01_sfnt_off00005f8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F8D 18924 bytes
SHA-256: 03f8f9e5bca1d9a481b21ed81ac86ae8f9d3d34c14abbd3a59325fe58da622a3

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