Malicious PDF — malware analysis report

Static analysis result for SHA-256 e07858e24865a5a7…

MALICIOUS

PDF

44.1 KB Created: 2021-05-20 00:01:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 95ac5207da6e1dbd8af796388ee804ff SHA-1: d34591047c2741bc29528372dda84cb9fdda1ed1 SHA-256: e07858e24865a5a754bbf42bb5f6188b217528287545b6e7335d792373fec2ac
82 Risk Score

Malware Insights

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

The PDF document contains embedded URLs and a visual download button, luring users to click and potentially download malicious content. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' indicates the document may also instruct users to execute commands, suggesting a multi-stage attack. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

Heuristics 4

  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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-get-minecraft-realms-for-free-game-hack
    • https://bwsrubber.com/image/data/files/hack-coin-master-apk-32_GM406889139.pdf
    • https://bwsrubber.com/image/data/files/coin-master-free-online_GM406889139.pdf
    • https://bwsrubber.com/image/data/files/roblox-hack-download_GM431946152.pdf
    • https://bwsrubber.com/image/data/files/free-roblox-toy-codes-2021_GM431946152.pdf
    • https://bwsrubber.com/image/data/files/show-me-how-to-get-free-robux_GM431946152.pdf
    • https://bwsrubber.com/image/data/files/free-dominus-roblox_GM431946152.pdf
    • https://bwsrubber.com/image/data/files/make-robux_GM431946152.pdf
    • https://bwsrubber.com/image/data/files/pubg-uc-deducted_GM1330123889.pdf
    • https://bwsrubber.com/image/data/files/free-roblox-scripts_GM431946152.pdf
    • https://bwsrubber.com/image/data/files/minecraft-java-edition-free-download-for-android_GM479516143.pdf
    • https://bwsrubber.com/image/data/files/roblox-hack-2021_GM431946152.pdf
    • https://bwsrubber.com/image/data/files/coin-master-hack-download_GM406889139.pdf
    • https://bwsrubber.com/image/data/files/how-to-get-free-robux-without-email_GM431946152.pdf
    • https://bwsrubber.com/image/data/files/free-robux-working_GM431946152.pdf
    • https://bwsrubber.com/image/data/files/get-free-robux-now_GM431946152.pdf
    • https://bwsrubber.com/image/data/files/coin-master-spin-rewards_GM406889139.pdf
    • https://bwsrubber.com/image/data/files/how-to-get-free-robux-without-verification_GM431946152.pdf
    • https://bwsrubber.com/image/data/files/minecraft-java-hacks_GM479516143.pdf
    • https://bwsrubber.com/image/data/files/roblox-hack-client_GM431946152.pdf
    • https://bwsrubber.com/image/data/files/coin-master-pc-game-free-download_GM406889139.pdf
    • https://discord.gg
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004bda.bin
2be235abf0881741b2907fbb458930480eb548cda2fdf8bd2284eff35fd5c832		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BDA 28096 bytes
font_01_sfnt_off00008ac7.bin
e7f5766237207d24130a790e1d2d61f15d85f871af5599da5b7787abafcff996		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AC7 18208 bytes

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