Malicious PDF — malware analysis report

Static analysis result for SHA-256 35749c970b2532a4…

MALICIOUS

PDF

55.3 KB Created: 2021-06-03 05:16:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4f8a5bebb2d3b36e857ccea1d55e8a6d SHA-1: f1ff048d8652ca825a17615c12c7e04711da88ad SHA-256: 35749c970b2532a443c388570089148e4a6d7a4f6ecd7eb6d190255f936ee07c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and free currency, directing users to a suspicious URL. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest an attempt to redirect users to a malicious site, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9269

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 https://netcdn.online/app/406889139/free-coin-and-spin-in-coin-master-game-hack PDF link annotation
    • http://digilib.unbari.ac.id/repository/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-roblox-pin-codes_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-hack-2021-apk-download_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-hack-site_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/mcpe-download_GM479516143.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-games-with-free-boombox_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-robux-now_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-svg-free_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-tiktok-followers-no-downloads_GM835599320.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-roblox-generator-for-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-free-spins-link-2021-iphone_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/noob-vs-pro-vs-hacker-vs-god-minecraft_GM479516143.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/daily-spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-roblox-groups-with-funds_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005184.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5184 32948 bytes
SHA-256: ea435deb01fdd5dc0bb691d815f7e215c8079bdba7938e5021615ee09fe3e3e8
font_01_sfnt_off00009a98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A98 2812 bytes
SHA-256: 869414959d7b492e0f799b560e1731e3ab498bd286c28e9f0d2ec33d9b6cf53d
font_02_sfnt_off0000a431.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA431 7332 bytes
SHA-256: d811e0aca85f3b94c42cd1240eec68b8eb378f3d8be5e408d3f6abd0f11f834d
font_03_sfnt_off0000b649.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB649 18060 bytes
SHA-256: e7e0a884e59d6d4457fb90cba238d6b772cb21bcfadc79e96e95c97f919ce424

Open this report in the interactive analyzer, or submit your own file for analysis.