Malicious PDF — malware analysis report

Static analysis result for SHA-256 454f2332687bf110…

MALICIOUS

PDF

33.0 KB Created: 2021-07-20 03:28:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0b0c7ae49b2c509e3122292a7e9054e1 SHA-1: 2330ed495fa4742a645013207907478499c2e94f SHA-256: 454f2332687bf110ea38d966b8b5323874e8ed65dfe96f0ce5a0870a49013162
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs pointing to sites offering game hacks and exploits, indicating a lure for users to download potentially malicious software. The presence of a call-to-action button and the ML classifier's high confidence score further support a malicious intent. No scripts were extracted, but the document structure and embedded links suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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/479516143/minecraft-free-apk-game-hack
    • http://dream-house.de/images/free-robux-hack-generator_GM431946152.pdf
    • http://dream-house.de/images/how-to-host-a-minecraft-server-for-free_GM479516143.pdf
    • http://dream-house.de/images/play-minecraft-for-free_GM479516143.pdf
    • http://dream-house.de/images/minecraft-free-download-windows-10_GM479516143.pdf
    • http://dream-house.de/images/tiktok-views-free_GM835599320.pdf
    • http://dream-house.de/images/free-tiktok-followers-no-human-verification-or-survey-2021_GM835599320.pdf
    • http://dream-house.de/images/how-to-hack-roblox-accounts-2021_GM431946152.pdf
    • http://dream-house.de/images/minecraft-iphone-free_GM479516143.pdf
    • http://dream-house.de/images/coin-master-free-coins-and-spins-app_GM406889139.pdf
    • http://dream-house.de/images/how-can-i-get-free-spins-on-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ea0.bin
88e9494f08d509ae8125022fb93ad6ed3ac22872526fe529f7690b1a0a987a7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA0 22264 bytes
font_01_sfnt_off0000602d.bin
5206acb7ea69a133be6841e1064e2d72a54228dc4d5bb59bfc2f267825fea601		 pdf-font-stream PDF embedded font (sfnt) at offset 0x602D 17912 bytes

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