Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ce325d0811a0c1e…

MALICIOUS

PDF

33.7 KB Created: 2021-07-04 20:45:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: bc4317ec66f71a91a0a19267969fcd2c SHA-1: be3f142bf77e978212de7283510e41782476b341 SHA-256: 9ce325d0811a0c1e2636de747f240786bebc6feae6835399c9ee0a572f6ef2a0
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous embedded links, many of which are structured as a link farm pointing to pages offering game hacks and cheats. The primary URL, http://netcdn.tw/app/479516143/hacks-for-minecraft-bedrock-game-hack, suggests a lure for downloading potentially unwanted or malicious software. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent to redirect users to harmful content.

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/479516143/hacks-for-minecraft-bedrock-game-hack
    • http://opac.disarpus.surakarta.go.id/repository/how-to-get-free-robux-on-phone-2021_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/coin-master-links-free-spins_GM406889139.pdf
    • http://opac.disarpus.surakarta.go.id/repository/coin-master-game-free-spin-download_GM406889139.pdf
    • http://opac.disarpus.surakarta.go.id/repository/coin-master-rewards_GM406889139.pdf
    • http://opac.disarpus.surakarta.go.id/repository/roblox-download-free-coins_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/who-hacked-cutelucyy9-on-roblox_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/robux-hack-no-human-verification-2021-ios_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/how-to-hack-roblox-on-kindle-fire_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/how-to-get-free-vip-jailbreak-roblox_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/easy-ways-to-get-free-robux-on-roblox_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-hack-no-human-verification-or-survey_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/play-roblox-free-online-login_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/pokemon-go-free-legendary-pokemon_GM1094591345.pdf
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-codes-july-2021_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/free-coin-master-coins-2021_GM406889139.pdf
    • http://opac.disarpus.surakarta.go.id/repository/how-to-level-up-hack-on-roblox_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/hack-nuevo-para-roblox-2021-editar-servidor_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/robux-no-human-verification_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/body-roblox_GM431946152.pdf
    • http://opac.disarpus.surakarta.go.id/repository/roblox-phone-hack_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f44.bin
b956a086c4dcb5c52fd75ead659f3545e239724b0b4b0965d0c2e09022b02afd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F44 22284 bytes
font_01_sfnt_off00006042.bin
4fc295dce404a6ce2538edafe463176f3647b846dab467762a183e8310dc408e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6042 18560 bytes

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