Malicious PDF — malware analysis report

Static analysis result for SHA-256 c50670ac897151e7…

MALICIOUS

PDF

35.0 KB Created: 2021-07-06 01:34:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 85e3ee787aaf272eb73ce3d28a1a0a13 SHA-1: 2ab41bbd3b862b629aa79a09a44af2d342186068 SHA-256: c50670ac897151e7b42fde7fe8d6130050fc6bb5776d47607488122b8aa3d0ed
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs, many of which point to sites offering game hacks and in-game currency, suggesting a lure for potentially malicious downloads or phishing. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and a visual download button heuristic further supports this assessment. No scripts were extracted, but the document's structure and embedded links indicate an attempt to trick users into visiting malicious sites.

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.tw/app/406889139/coin-master-home-game-hack
    • http://abdinusababellibrary.ac.id/repository/free-robux-tutorial-no-human-verification-or-survey_GM431946152.pdf
    • http://abdinusababellibrary.ac.id//repository/free-stuff-on-roblox_GM431946152.pdf
    • http://abdinusababellibrary.ac.id//repository/is-there-a-way-to-get-free-robux_GM431946152.pdf
    • http://abdinusababellibrary.ac.id//repository/20210-robux_GM431946152.pdf
    • http://abdinusababellibrary.ac.id/repository/minecraft-redeem-code-free-2021_GM479516143.pdf
    • http://abdinusababellibrary.ac.id//repository/master-coin-hack_GM406889139.pdf
    • http://abdinusababellibrary.ac.id//repository/free-back-accessories-roblox_GM431946152.pdf
    • http://abdinusababellibrary.ac.id//repository/earn-free-spins-in-coin-master_GM406889139.pdf
    • http://abdinusababellibrary.ac.id//repository/how-to-change-your-name-on-roblox-for-free_GM431946152.pdf
    • http://abdinusababellibrary.ac.id//repository/how-do-you-get-free-robux-on-roblox_GM431946152.pdf
    • http://abdinusababellibrary.ac.id//repository/roblox-robux-hack-generator_GM431946152.pdf
    • http://abdinusababellibrary.ac.id//repository/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
    • http://abdinusababellibrary.ac.id//repository/free-admin-roblox_GM431946152.pdf
    • http://abdinusababellibrary.ac.id//repository/coin-master-hack-online-cheat_GM406889139.pdf
    • http://abdinusababellibrary.ac.id//repository/free-robux-sites-that-work_GM431946152.pdf
    • http://abdinusababellibrary.ac.id//repository/roblox-admin-hack_GM431946152.pdf
    • http://abdinusababellibrary.ac.id//repository/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdf
    • http://abdinusababellibrary.ac.id//repository/pokemon-go-5-free-raid-pass_GM1094591345.pdf
    • http://abdinusababellibrary.ac.id/repository/free-robux-traders_GM431946152.pdf
    • http://abdinusababellibrary.ac.id/repository/lemonaid-roblox-hack-download_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003332.bin
5fcde19b59bed7a996a00a985b3c26d95b456f697ce675fad9c130284cfa9556		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3332 23040 bytes
font_01_sfnt_off000066e5.bin
ba905ac73eef98627ce31f9a61196988fba84150967a6aeb5bce2c15a28684d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66E5 18092 bytes

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