Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e039efe13fb35ba…

MALICIOUS

PDF

38.8 KB Created: 2021-05-30 12:26:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e89a9789a5f24f6e30cd37a8d9bf54dc SHA-1: 1dbede82c579c99cec32a1d58c3ec51f87f8972b SHA-256: 6e039efe13fb35ba20c2a423e67f2975d05c9616ec24003343671be509c14500
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure and embedded URLs that lead to websites offering game hacks and cheats. The ML classifier strongly indicates maliciousness. The document likely aims to trick users into downloading further malware or visiting malicious sites by exploiting their interest in game exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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 https://netcdn.xyz/app/431946152/adopt-me-roblox-hacks-game-hack
    • https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/free-roblox-accounts-with-robux_GM431946152.pdf
    • https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/free-tiktok-likes-app_GM835599320.pdf
    • https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/free-minecraft-account-and-password_GM479516143.pdf
    • https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/how-to-get-free-coins-on-tiktok_GM835599320.pdf
    • https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/free-tiktok-coins_GM835599320.pdf
    • https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/free-texture-packs-for-minecraft-pe_GM479516143.pdf
    • https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/coin-master-free-spins-2021_GM406889139.pdf
    • https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/how-to-get-a-free-minecraft-account_GM479516143.pdf
    • https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdf
    • https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/freer-pro-tiktok-fans_GM835599320.pdf
    • https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/rbx-gg-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003a59.bin
c547ec0dba23e98e22bfc9e73429adff35bbd4b65ad0df94d341f3d2ba77bc40		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3A59 25352 bytes
font_01_sfnt_off0000745d.bin
20cc3fc4f8bba0f9e43a0219006a1a5053a8a449a15fb7b1ac4ebea58af7d5b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x745D 18832 bytes

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