Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d6ee1990aea76d7…

MALICIOUS

PDF

32.9 KB Created: 2021-06-30 01:00:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: d9e83f7b28eeacd5b3bf175ca4ca5172 SHA-1: 93b8a64fdcd66be64b7aa0960c2a3b9559a951fc SHA-256: 9d6ee1990aea76d7498dfd433efb1c77c845a30e6b611a18fc7e678e4a193ae4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document displays a fake CAPTCHA to lure the user into clicking a link, likely to download a malicious payload. The embedded URLs and document body content strongly suggest a scam related to game cheats and in-game currency. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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-skins-free-downoad-game-hack PDF link annotation
    • http://www.elibrary.perludem.org/repository/random-free-roblox-account_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-roblox-promo-code_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/haktuts-coin-master-today_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/coin-master-hack-online-without-human-verification_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/xex-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-hack-exploit-project-pokemon_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-make-roblox-clothes-for-free_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/coin-master-15-free-spin-link-today_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/how-to-hack-roblox-to-get-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-robot-animation-roblox_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-robux-i-swear-to-god_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/roblox-free-executor_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-bloxburg-free-money_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/coin-master-attack-madness-hack_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-get-free-robux-no-wat_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_off00002a4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A4A 21936 bytes
SHA-256: ea8e59346a8b93612780199cb21f7daa426118168d7c63afd07011873991ad97
font_01_sfnt_off00005aa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AA5 19444 bytes
SHA-256: eb8dba38386dca64fe1e5baaf3d37fa6f7eeeb3b0556858dc39185ebece633c4

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