Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea7ff675634dde89…

MALICIOUS

PDF

34.6 KB Created: 2021-06-26 04:08:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a71d9a9f6d9040a6eda020461d024341 SHA-1: 7a9c5da5b0021984729212a895f5a9d877d223f7 SHA-256: ea7ff675634dde8955cac1bda6c59d0723cb0be07885668291d6fe970914cbf3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic indicating it links to a game hack lure. The embedded URL, http://netcdn.co/app/431946152/roblox-black-pants-white-shoes-free-game-hack, is likely used to redirect the user to a malicious site. The document body and numerous other URLs reinforce the theme of game cheats and generators, suggesting a social engineering tactic to entice clicks.

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/roblox-black-pants-white-shoes-free-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/ben-10-roblox-cheats_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/robux-cheat-engine_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-admin-on-roblox-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-no-survey-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-online-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/https-rbx-place-rewards_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/cheat-speed-city-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/what-roblox-is-good-about-hacked-account_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/aimbot-hack-roblox-cbro_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-hack-your-level-in-boku-no-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-robux-easy-no-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/unlimited-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_off00003052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3052 21948 bytes
SHA-256: 965e10f351660372f84795279d64d9259cae8261c025e7e943cf3c578eb38983
font_01_sfnt_off000060c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60C4 19564 bytes
SHA-256: 1116d2c1f5a6bfb5bedc43a817704a0f760ce035d61d4d100f161ee23f074344