Malicious PDF — malware analysis report

Static analysis result for SHA-256 d95904a3c681003e…

MALICIOUS

PDF

35.8 KB Created: 2021-06-20 19:44:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: cbec82366e3b6aadc25fce9ed8a652d2 SHA-1: 2a526f1b1b09d0e2002f909979de838949089de8 SHA-256: d95904a3c681003eb7b60c93cedfc33d51c8af19327d49619b0a57ef0b8c45ff
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document exhibits malicious behavior by embedding external URIs and displaying lures for game-related hacks and free items. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple suspicious URLs suggests an attempt to redirect users to potentially harmful content or phishing sites. No scripts were extracted, but the overall pattern indicates a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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-free-outfit-codes-game-hack
    • https://dolphintour.vn/images/uploadsfiles/how-to-hack-roblox-fort-albreta_GM431946152.pdf
    • https://dolphintour.vn/images/uploadsfiles/free-robux-discord_GM431946152.pdf
    • https://dolphintour.vn/images/uploadsfiles/hack-crack-for-coin-master-currency_GM406889139.pdf
    • https://dolphintour.vn/images/uploadsfiles/coin-master-free-spin-daily-link_GM406889139.pdf
    • https://dolphintour.vn/images/uploadsfiles/minecraft-java-free_GM479516143.pdf
    • https://dolphintour.vn/images/uploadsfiles/coin-master-online-hack-generator_GM406889139.pdf
    • https://dolphintour.vn/images/uploadsfiles/coin-master-free-coins-and-spins-daily_GM406889139.pdf
    • https://dolphintour.vn/images/uploadsfiles/inappropriate-roblox_GM431946152.pdf
    • https://dolphintour.vn/images/uploadsfiles/freespinandcoinblogspotcom-2021-11-coinmasterfreespinandcoinlinkshtml_GM406889139.pdf
    • https://dolphintour.vn/images/uploadsfiles/roblox-report-hacker_GM431946152.pdf
    • https://dolphintour.vn/images/uploadsfiles/coin-master-hack-facebook_GM406889139.pdf
    • https://dolphintour.vn/images/uploadsfiles/coinmaster-spin-ml-link_GM406889139.pdf
    • https://dolphintour.vn/images/uploadsfiles/games-that-will-give-u-free-robux_GM431946152.pdf
    • https://dolphintour.vn/images/uploadsfiles/free-mods-for-coin-master_GM406889139.pdf
    • https://dolphintour.vn/images/uploadsfiles/free-old-roblox-accounts_GM431946152.pdf
    • https://dolphintour.vn/images/uploadsfiles/how-to-get-free-robux-on-phone_GM431946152.pdf
    • https://dolphintour.vn/images/uploadsfiles/free-robux-hacker-us_GM431946152.pdf
    • https://dolphintour.vn/images/uploadsfiles/free-robux-games-that-actually-work-2021_GM431946152.pdf
    • https://dolphintour.vn/images/uploadsfiles/minecraft-anarchy-server-no-hacks_GM479516143.pdf
    • https://dolphintour.vn/images/uploadsfiles/how-to-get-bloxburg-for-free-on-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003582.bin
5f0c80ff9bbd67257493ab17df333f42217e752afad69a0a45156e7854bd023b
pdf-font-stream PDF embedded font (sfnt) at offset 0x3582 22156 bytes
font_01_sfnt_off000066b0.bin
0f253d0544ebf9e48f3038e5715d0d6097f1b87836d42339b756b5997c84c22c
pdf-font-stream PDF embedded font (sfnt) at offset 0x66B0 19188 bytes