Malicious PDF — malware analysis report

Static analysis result for SHA-256 eacde25656615df9…

MALICIOUS

PDF

35.1 KB Created: 2021-06-25 16:21:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: c64c389a4cc0ac0a82e86e408758e4a3 SHA-1: 8b3b887d0e0ac6d33a3819e36a654bd5727fd337 SHA-256: eacde25656615df970e88fc2108ac6140e0d07ea68d6d6e4704868136eecd163
62 Risk Score

Malware Insights

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

The document contains a clear lure related to hacking Roblox accounts, directing users to a suspicious URL. The presence of a download button heuristic and the ML classifier's high confidence score indicate a malicious intent to trick users into downloading potentially harmful content. The callback lure heuristic suggests a broader phishing or scam context.

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/how-to-hack-someones-roblox-account-on-phone-game-hack PDF link annotation
    • http://www.marambio.com.ar/images/roblox-black-pants-white-shoes-free_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/nathorix-free-robux_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/free-roblox-account-with-money-on-jailbreak_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/free-robux-accounts_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/update-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.marambio.com.ar/images/roblox-jailbreak-hack-december-2021_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/download-roblox-free-on-chromebook_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://www.marambio.com.ar/images/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://www.marambio.com.ar/images/how-to-install-minecraft-for-free-on-ios_GM479516143.pdfIn PDF document text
    • http://www.marambio.com.ar/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/free-robux-discord_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/free-tiktok-followers-app_GM835599320.pdfIn PDF document text
    • http://www.marambio.com.ar/images/roblox-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/free-robux-just-enter-username-and-password_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_off00002ff3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FF3 22604 bytes
SHA-256: e87346e90fe904ff968278310c837cda324431bea7653ccc619df0d59fa05349
font_01_sfnt_off0000627c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x627C 19644 bytes
SHA-256: a7cff739641ea2676e29d2eb7e010f42ad78451b99b29703eb6695d97fc05072

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