Malicious PDF — malware analysis report

Static analysis result for SHA-256 c42e6833a2056103…

MALICIOUS

PDF

44.0 KB Created: 2021-06-02 14:14:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e5da59a8f87a43eabd1d12167e6f6d50 SHA-1: e1da43027f73c5817c75b8e56fb8bb6f789aaefc SHA-256: c42e6833a20561031e1c92a4c338cfa135409e8e276c2697a9442fe9e70f2f20
102 Risk Score

Malware Insights

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

This PDF document contains a lure for downloading exploits, as indicated by the 'SE_SECRET_RECOVERY_LURE' heuristic and the presence of multiple URLs pointing to game hacks and exploits. The document body, though heavily obfuscated, contains references to 'free Roblox Noclip Exploit 2021' and a URL that likely serves as a download link for malicious content. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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/free-roblox-noclip-exploit-2021-game-hack
    • https://www.bmta.co.uk/images/hack-coin-master-no-survey_GM406889139.pdf
    • https://www.bmta.co.uk/images/free-robux-com-no-verification_GM431946152.pdf
    • https://www.bmta.co.uk/images/coin-master-apk-mod_GM406889139.pdf
    • https://www.bmta.co.uk/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdf
    • https://www.bmta.co.uk/images/minecraft-hacked-client-18_GM479516143.pdf
    • https://www.bmta.co.uk/images/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdf
    • https://www.bmta.co.uk/images/daily-free-spins-coin-master-2021_GM406889139.pdf
    • https://www.bmta.co.uk/images/coin-master-daily-free-spin-app_GM406889139.pdf
    • https://www.bmta.co.uk/images/pokemon-go-free-game-download_GM1094591345.pdf
    • https://www.bmta.co.uk/images/roblox-free-robux-hack_GM431946152.pdf
    • https://www.bmta.co.uk/images/coin-master-free-generator_GM406889139.pdf
    • https://www.bmta.co.uk/images/robux-com-free-robux_GM431946152.pdf
    • https://www.bmta.co.uk/images/smart-lodhi-coin-master-hack_GM406889139.pdf
    • https://www.bmta.co.uk/images/hacks-for-minecraft-windows-10_GM479516143.pdf
    • https://www.bmta.co.uk/images/how-do-u-get-free-robux_GM431946152.pdf
    • https://www.bmta.co.uk/images/coin-master-facebook_GM406889139.pdf
    • https://www.bmta.co.uk/images/free-robux-no-verification-or-survey_GM431946152.pdf
    • https://www.bmta.co.uk/images/how-to-get-roblox-premium-for-free_GM431946152.pdf
    • https://www.bmta.co.uk/images/how-to-get-free-coins-on-coin-master-hack_GM406889139.pdf
    • https://www.bmta.co.uk/images/free-minecraft-hacks_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004ec0.bin
9ce1fd76b5ff5063525c6dda752fb01ce85e7066e0085ebee1f2ddd82558d816		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EC0 24952 bytes
font_01_sfnt_off000087ae.bin
3d878abcb536a035137e81d05c8673721978a2bb2213347bff890ccc9b6925e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87AE 18748 bytes

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