Malicious PDF — malware analysis report

Static analysis result for SHA-256 f95a6265db801a50…

MALICIOUS

PDF

34.4 KB Created: 2021-07-04 14:09:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 095a841cc26f12388634a52783a1fa17 SHA-1: 138f3de458bc31e9c5e68aa925e935d8a7bd0dbb SHA-256: f95a6265db801a50ffbd4e6a8116d3c6c494d37bf3d41fec502332cf1df4bfc9
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/431946152/blox-land-free-robux-game-hack PDF link annotation
    • http://slim.sisminkada.net/repository/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/giving-away-free-robux-live_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/skin-for-roblox-girl-free_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-generator-addon_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-anime-cross-hack_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/anyway-to-get-robux-on-roblox-free_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-codes-november-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-hack-apk-android-1_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/make-free-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-easy-just-username-and-then-get-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-play-online-free_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-meme_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/juego-hackeado-de-coin-master_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-to-play-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-free-robux-in-2021_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_off00002f4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F4C 22440 bytes
SHA-256: 4095fd2593a887513bd748cc13e52c6a049ae350e7c86283b233cd86987ab746
font_01_sfnt_off00006192.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6192 18964 bytes
SHA-256: 3f12ef93e3f94e19068a8415642f40f3a4d95b4d38f37f1bdada02c05cec8b59

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