Malicious PDF — malware analysis report

Static analysis result for SHA-256 93b96a0d11027d57…

MALICIOUS

PDF

35.5 KB Created: 2021-07-05 08:54:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 1d577c634ca0b3165c331b104c576b82 SHA-1: ec6aad9266c5987c3a162cf7eb3082129789e806 SHA-256: 93b96a0d11027d576bd733ea2caa5af9b6c359601c55308da0a8fc86b4e678aa
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of external links, many of which are structured as SEO-friendly slugs pointing to game-related cheat files. The primary URL, http://netcdn.tw/app/406889139/levvvel-coin-master-game-hack, suggests a lure for game hacks. The presence of a PDF URI heuristic and the ML classifier's high confidence score indicate malicious intent, likely to direct users to malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/levvvel-coin-master-game-hack
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/roblox-jump-hack-cheat-engine_GM431946152.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/game-that-gives-you-free-stuff-from-catalog-in-roblox_GM431946152.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/roblox-makes-robux-items-free_GM431946152.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/how-to-hack-a-roblox-account-2021_GM431946152.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/coin-master-spin-and-coins-free_GM406889139.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/free-robux-no-human-verification-easy_GM431946152.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/roblox-q-to-speedhack-script-hack_GM431946152.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/free-robux-games-that-actually-work-2021_GM431946152.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/free-dll-roblox-exploit_GM431946152.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/play-minecraft-for-free_GM479516143.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/roblox-adopt-me-bucks-generator-free_GM431946152.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/btools-roblox-hack-jailbreak_GM431946152.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/coin-master-gold-cards-free_GM406889139.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/how-to-hack-m-coins-mcpe-master_GM406889139.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/minecraft-dungeons-free-download-pc_GM479516143.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/get-me-robux_GM431946152.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/coin-master-free-spins-link-haktuts_GM406889139.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/free-coin-master-cards-link_GM406889139.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/rbxoffers-com-free-robux_GM431946152.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/how-to-make-free-shirts-on-roblox-with-asset-downloader_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003468.bin
7559de02383b969d9b91adf2850e36e7815b72035d0aab016d1b5616658112d8		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3468 23236 bytes
font_01_sfnt_off000068bb.bin
17876242a2a0dcf4775db2ff80c40ea767b9a75c5f2b8c6cb08d9d25e5860b33		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68BB 18024 bytes

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