Malicious PDF — malware analysis report

Static analysis result for SHA-256 229d5c390eb30256…

MALICIOUS

PDF

35.0 KB Created: 2021-07-08 05:52:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2c624e57858e70c8b8f1b433c717c674 SHA-1: c8e240b3e953cf0882dd67d002e7abcdcb34969d SHA-256: 229d5c390eb30256658cdd870a7fa6de227c6fa1bd3082ca6e940b50e7f32836
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which are related to game hacks and cheats for popular games like Minecraft, Roblox, and Coin Master. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, suggesting a link farm designed to attract users searching for such content. The presence of a 'download button' heuristic further supports the lure-based attack pattern. The primary goal appears to be directing users to download potentially malicious files or visit scam websites.

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/xray-mod-minecraft-114-game-hack
    • http://www.producthubhob.com/uploaded_files/userfiles/files/roblox-hack-sin-verificacion-humana_GM431946152.pdf
    • http://www.producthubhob.com/uploaded_files/userfiles/files/coin-master-free-spins-link-today-new_GM406889139.pdf
    • http://www.producthubhob.com/uploaded_files/userfiles/files/how-to-get-free-coins-in-coin-master-game_GM406889139.pdf
    • http://www.producthubhob.com/uploaded_files/userfiles/files/coin-master-free-spins-link-quora_GM406889139.pdf
    • http://www.producthubhob.com/uploaded_files/userfiles/files/robux-download_GM431946152.pdf
    • http://www.producthubhob.com/uploaded_files/userfiles/files/nopde-engine-64-roblox-hacks_GM431946152.pdf
    • http://www.producthubhob.com/uploaded_files/userfiles/files/coin-master-free-spins-11-01-2021_GM406889139.pdf
    • http://www.producthubhob.com/uploaded_files/userfiles/files/telecharger-hack-pour-roblox-mad-city_GM431946152.pdf
    • http://www.producthubhob.com/uploaded_files/userfiles/files/free-robux-just-freind-me_GM431946152.pdf
    • http://www.producthubhob.com/uploaded_files/userfiles/files/how-to-get-free-robux-subscriber-key_GM431946152.pdf
    • http://www.producthubhob.com/uploaded_files/userfiles/files/earn-points-for-robux_GM431946152.pdf
    • http://www.producthubhob.com/uploaded_files/userfiles/files/how-to-get-followers-on-tiktok-for-free_GM835599320.pdf
    • http://www.producthubhob.com/uploaded_files/userfiles/files/coin-master-hacks-for-cards_GM406889139.pdf
    • http://www.producthubhob.com/uploaded_files/userfiles/files/free-multiplayer-minecraft-server_GM479516143.pdf
    • http://www.producthubhob.com/uploaded_files/userfiles/files/how-to-hack-roblox-accounts_GM431946152.pdf
    • http://www.producthubhob.com/uploaded_files/userfiles/files/pastebin-roblox-hack-accounts_GM431946152.pdf
    • http://www.producthubhob.com/uploaded_files/userfiles/files/coin-master-free-spin-generator-without-human-verification_GM406889139.pdf
    • http://www.producthubhob.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-app-download_GM406889139.pdf
    • http://www.producthubhob.com/uploaded_files/userfiles/files/roblox-ps3-free_GM431946152.pdf
    • http://www.producthubhob.com/uploaded_files/userfiles/files/coin-master-70-spin-link-today_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030e6.bin
43e854a46a5280f518fc29e45a8c766732f67555159ca044a56db3867377319b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x30E6 23048 bytes
font_01_sfnt_off000064b4.bin
5b442dcc3f3349fc6fd674a71fa96c6a55f9280713babfbda9777be484e1b5e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64B4 18748 bytes

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