Malicious PDF — malware analysis report

Static analysis result for SHA-256 7925d4d0fee66bec…

MALICIOUS

PDF

43.1 KB Created: 2021-05-16 17:44:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: c06a1eb2f21193477c53b94e54b20a47 SHA-1: 099135b293a6e5fdb92537cb6342658ce684147e SHA-256: 7925d4d0fee66bec3e03bb274c3a8f757c058b7e310984ca512f6500518f464f
122 Risk Score

Malware Insights

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

The PDF contains numerous external links, many pointing to domains associated with game hacks and cheats, indicating a lure for users to download potentially malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of a link farm further supports a malicious intent. The document's content and structure suggest it's designed to trick users into visiting these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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/479516143/how-to-download-wurst-game-hack
    • https://creationegyptco.com/userfiles/files/hacks-for-minecraft-windows-10_GM479516143.pdf
    • https://creationegyptco.com/userfiles/files/coin-master-free-spins-blogspot_GM406889139.pdf
    • https://creationegyptco.com/userfiles/files/minecraft-hacked-client-112-2_GM479516143.pdf
    • https://creationegyptco.com/userfiles/files/how-to-block-someone-on-coin-master_GM406889139.pdf
    • https://creationegyptco.com/userfiles/files/coin-master-spins-for-free_GM406889139.pdf
    • https://creationegyptco.com/userfiles/files/how-to-hack-in-roblox-prison-life_GM431946152.pdf
    • https://creationegyptco.com/userfiles/files/free-coin-master-spins-for-today_GM406889139.pdf
    • https://creationegyptco.com/userfiles/files/how-to-hack-roblox-to-get-robux_GM431946152.pdf
    • https://creationegyptco.com/userfiles/files/free-coins-2021-coin-master-link_GM406889139.pdf
    • https://creationegyptco.com/userfiles/files/coin-master-free-spin-today_GM406889139.pdf
    • https://creationegyptco.com/userfiles/files/free-coin-master-spins_GM406889139.pdf
    • https://creationegyptco.com/userfiles/files/free-robux-website_GM431946152.pdf
    • https://creationegyptco.com/userfiles/files/coin-master-35-13-hack-download_GM406889139.pdf
    • https://creationegyptco.com/userfiles/files/free-roblox-animations_GM431946152.pdf
    • https://creationegyptco.com/userfiles/files/hack-coin-master-using-pc_GM406889139.pdf
    • https://creationegyptco.com/userfiles/files/free-coin-and-spin-in-coin-master_GM406889139.pdf
    • https://creationegyptco.com/userfiles/files/minecraft-online-free-no-download_GM479516143.pdf
    • https://creationegyptco.com/userfiles/files/como-conseguir-monedas-infinitas-y-tiradas-de-coin-master-hack_GM406889139.pdf
    • https://creationegyptco.com/userfiles/files/free-roblox-hair-girl_GM431946152.pdf
    • https://creationegyptco.com/userfiles/files/can-i-get-minecraft-for-free_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d1e.bin
de2cb7af70db315180225882ecdffcdd3ecccaeed120030bea9c8c79e4bc61dd		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D1E 24852 bytes
font_01_sfnt_off00008562.bin
7549c5ff242de623ced2015b0eb416b949beaaafe418d998374bf37911f2b306		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8562 18508 bytes

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