Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2a1224cfd8cc012…

MALICIOUS

PDF

45.6 KB Created: 2021-05-14 17:30:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ecb6ade3569ec79c25c1f8c7098ec4d5 SHA-1: fc2d4242340eb782dbe2c451c3b3aa8ac1308c83 SHA-256: c2a1224cfd8cc01272f48dc3d78dba0ae7b836df29d8fc2a05dcc31cb4022aa1
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, designed to trick users into interacting with the document. It also embeds multiple URLs, one of which is directly linked to a heuristic firing for external URI access. The presence of these elements suggests the document is intended to facilitate the download of a second-stage payload, likely via the embedded URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/hacks-to-get-free-robux-game-hack
    • http://ordineavvocatitempio.it/images/coin-master-spins_GM406889139.pdf
    • http://ordineavvocatitempio.it/images/how-to-get-free-robux-without-verification-2021_GM431946152.pdf
    • http://ordineavvocatitempio.it/images/coin-master-free-coins_GM406889139.pdf
    • http://ordineavvocatitempio.it/images/coin-master-hack-iphone_GM406889139.pdf
    • http://ordineavvocatitempio.it/images/roblox-download_GM431946152.pdf
    • http://ordineavvocatitempio.it/images/free-robux-no-verification-no-download_GM431946152.pdf
    • http://ordineavvocatitempio.it/images/coin-master-free-spins-1701-20_GM406889139.pdf
    • http://ordineavvocatitempio.it/images/how-to-get-free-robux-gift-cards_GM431946152.pdf
    • http://ordineavvocatitempio.it/images/best-free-hacked-client_GM479516143.pdf
    • http://ordineavvocatitempio.it/images/how-to-hack-any-roblox-account_GM431946152.pdf
    • http://ordineavvocatitempio.it/images/free-minecraft-games-for-kids_GM479516143.pdf
    • http://ordineavvocatitempio.it/images/get-free-coin-master-coins_GM406889139.pdf
    • http://ordineavvocatitempio.it/images/how-do-you-get-roebucks_GM431946152.pdf
    • http://ordineavvocatitempio.it/images/best-roblox-hacks_GM431946152.pdf
    • http://ordineavvocatitempio.it/images/coin-master-free-coins-hack_GM406889139.pdf
    • http://ordineavvocatitempio.it/images/daily-coin-master-free-spin-link_GM406889139.pdf
    • http://ordineavvocatitempio.it/images/free-promo-codes-for-robux_GM431946152.pdf
    • http://ordineavvocatitempio.it/images/coin-master-hack-game_GM406889139.pdf
    • http://ordineavvocatitempio.it/images/hack-download_GM431946152.pdf
    • http://ordineavvocatitempio.it/images/free-robux-codes-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000477a.bin
db27e23e087940056c15f149c48ec07412c927d35a8b4271547226be3f0263b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x477A 28588 bytes
font_01_sfnt_off0000857c.bin
972979c3a46100cf5f8fd289bc6fbd2496ff75fec0e3f6753648c72ec6eba714		 pdf-font-stream PDF embedded font (sfnt) at offset 0x857C 2820 bytes
font_02_sfnt_off00008f1c.bin
49067203d4eb86d04ddf999d64ba4750afe8b15cea6fed862c5ee30987f881c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F1C 18516 bytes

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