Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e6073f22293f382…

MALICIOUS

PDF

46.8 KB Created: 2021-06-09 08:18:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 89264e32e905680597c062a013c67cf0 SHA-1: 1fdd638aa08141da635b5a57b1675c04fb8971fe SHA-256: 6e6073f22293f3827f148e0963531595c122f10cc67766834bfdd8f62b83d74d
102 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many of which are structured as a link farm to obscure malicious content. The document body and extracted URLs suggest a lure related to game hacks and cheats, aiming to trick users into downloading malware. The ML classifier strongly indicates maliciousness, and the presence of external URIs points towards a potential download or redirection to a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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 https://netcdn.tw/app/431946152/roblox-hack-movil-game-hack
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/coin-master-free-spins-and-coins-haktuts_GM406889139.pdf
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/can-i-play-minecraft-for-free_GM479516143.pdf
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/daily-free-spin-and-coin_GM406889139.pdf
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/how-to-get-free-robux-no-survey-or-human-verification_GM431946152.pdf
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/roblox-apk-hack_GM431946152.pdf
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/how-to-install-minecraft-for-free_GM479516143.pdf
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/freer-pro-tiktok-fans_GM835599320.pdf
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/free-roblox-script-executor_GM431946152.pdf
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/can-i-hack-coin-master-with-lucky-patcher_GM406889139.pdf
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/free-exploits-for-roblox_GM431946152.pdf
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/free-robux-cards_GM431946152.pdf
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/coin-master-free-spins-app_GM406889139.pdf
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/free-robux-hack-no-human-verification_GM431946152.pdf
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/free-minecraft-hacks_GM479516143.pdf
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdf
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/coin-master-free-spin-link-daily_GM406889139.pdf
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/roblox-gift-card-for-free_GM431946152.pdf
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/coin-master-hack-mod-apk-2021-download_GM406889139.pdf
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/free-minecraft-account-and-password-2021_GM479516143.pdf
    • https://beershebaschool.edu.np/ckfinder/userfiles/files/free-spins-for-coin-master-2021_GM406889139.pdf
    • https://www.bandicam.com
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005363.bin
664264d32cd9c3ad03a6316a19322c6116a80c637a891a0d82c8538de7f6d6f6		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5363 28276 bytes
font_01_sfnt_off0000936a.bin
e33c9072b67777b6fba9646c4a2ef957652f8e8937ef81fe93a336afb3fe3964		 pdf-font-stream PDF embedded font (sfnt) at offset 0x936A 18612 bytes

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