Malicious PDF — malware analysis report

Static analysis result for SHA-256 16bc227eb32d46b0…

MALICIOUS

PDF

42.8 KB Created: 2021-05-17 19:21:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 96883cc3cecb00a8cae9235bc269bd5a SHA-1: 62d00f01c2b82f48033332163fa240172d87fa74 SHA-256: 16bc227eb32d46b02aacb71618af982d956dcbdc61ed4ba5af4667d0e71ca257
82 Risk Score

Malware Insights

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

The document presents itself as a Minecraft download, but contains embedded URLs and a heuristic firing for a clipboard command lure, indicating it's designed to trick users into executing malicious commands. The ML classifier strongly flags this PDF as malicious, and the presence of multiple download-related URLs suggests a downloader or exploit delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/minecraft-1.14-4-download-game-hack
    • https://elman1td.sam73cyber.com/__statics/gudangsoal/files/how-to-get-free-coins-in-mcpe-master_GM406889139.pdf
    • https://elman1td.sam73cyber.com/__statics/gudangsoal/files/coin-master-coin-hack_GM406889139.pdf
    • https://elman1td.sam73cyber.com/__statics/gudangsoal/files/robux-hack-no-verification_GM431946152.pdf
    • https://elman1td.sam73cyber.com/__statics/gudangsoal/files/minecraft-hacks-wurst_GM479516143.pdf
    • https://elman1td.sam73cyber.com/__statics/gudangsoal/files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdf
    • https://elman1td.sam73cyber.com/__statics/gudangsoal/files/rewards-roblox_GM431946152.pdf
    • https://elman1td.sam73cyber.com/__statics/gudangsoal/files/coin-master-daily-free-spin-and-coin-link-haktuts_GM406889139.pdf
    • https://elman1td.sam73cyber.com/__statics/gudangsoal/files/coin-master-hack-spins-game-download_GM406889139.pdf
    • https://elman1td.sam73cyber.com/__statics/gudangsoal/files/easy-coin-master-hack-without-verification_GM406889139.pdf
    • https://elman1td.sam73cyber.com/__statics/gudangsoal/files/free-robux-mobile_GM431946152.pdf
    • https://elman1td.sam73cyber.com/__statics/gudangsoal/files/coin-master-mod-apk-hack_GM406889139.pdf
    • https://elman1td.sam73cyber.com/__statics/gudangsoal/files/my-minecraft-account-was-hacked_GM479516143.pdf
    • https://elman1td.sam73cyber.com/__statics/gudangsoal/files/coin-master-hack-xyz-download-free_GM406889139.pdf
    • https://elman1td.sam73cyber.com/__statics/gudangsoal/files/how-to-get-free-robux-easy_GM431946152.pdf
    • https://elman1td.sam73cyber.com/__statics/gudangsoal/files/free-robux-real-2021_GM431946152.pdf
    • https://elman1td.sam73cyber.com/__statics/gudangsoal/files/coin-master-claim-free-spins_GM406889139.pdf
    • https://elman1td.sam73cyber.com/__statics/gudangsoal/files/free-spins-coin-master-hack-2021_GM406889139.pdf
    • https://elman1td.sam73cyber.com/__statics/gudangsoal/files/minecraft-free-apk_GM479516143.pdf
    • https://elman1td.sam73cyber.com/__statics/gudangsoal/files/how-do-you-get-free-pet-food-in-coin-master_GM406889139.pdf
    • https://elman1td.sam73cyber.com/__statics/gudangsoal/files/haktuts-free-spins_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c36.bin
ca76839a92355280b9a0015494abd7345e63d41c659d4dffdec8520678067d3d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C36 24556 bytes
font_01_sfnt_off00008441.bin
6d95bb5e0251b920a9764ccc918690a910b4901eebdf6c0878bf0d7e0e2360a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8441 18524 bytes

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