Malicious PDF — malware analysis report

Static analysis result for SHA-256 05eac778ff6705ba…

MALICIOUS

PDF

34.8 KB Created: 2021-06-25 09:15:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d1cee46331f67959cd7fb05ffd18e27f SHA-1: 713c3faaf6b7fc60272bdfdc49a9dedbb2a3683f SHA-256: 05eac778ff6705bafbe1c441380871bb7c242ef9e21f5e4ca8d757cf9d2c1359
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure for a "Roblox Hack Menu" and links to a suspicious URL, indicating a phishing or malware distribution attempt. The ML classifier strongly flagged this PDF as malicious. While no scripts were directly extracted, the presence of embedded URLs and the nature of the lure suggest the document is designed to trick users into downloading potentially harmful software.

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-hack-menu-download-pc-game-hack PDF link annotation
    • http://fkunismuh.org/perpustakaan/repository/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/free-cods-free-roblox-obc-or-robux_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/tiktok-free-8-ball-pool_GM835599320.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/get-roebucks-com_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/coin-master-hack-without-root_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/real-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/hacking-code-text-chat-roblox_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/pig-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/free-spins-for-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/todays-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-spins-coin-master-cheat_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/coin-spin_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/coin-master-free-spins-link-2021-hack_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/coin-master-free-spins-and-coins-hack_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/coin-master-hack-twitter_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/pig-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/minecraft-free-download-ipad_GM479516143.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/roblox-hack-validation-code_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-robux-without-verification_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_off00002fcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FCC 22256 bytes
SHA-256: ddf560e568929ed3f288a42ad30112e27fe285278bb6b6ea2c53b0ede2559686
font_01_sfnt_off0000615e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x615E 19652 bytes
SHA-256: dff669b230801dd2233140cec856eeea8fe0e18a5dd5be9512e416d091ed1602

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