Malicious PDF — malware analysis report

Static analysis result for SHA-256 eec235a9c8d7ae12…

MALICIOUS

PDF

44.0 KB Created: 2021-05-17 19:56:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 3db36786cb403740fee9d34d1c0cd0bf SHA-1: b3d44eeb84f988bd1b0913de66ec5a0f297260a0 SHA-256: eec235a9c8d7ae126f28737740876d20c4584334034363813eef4b6b55c9d4f9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The document exhibits characteristics of a malicious lure, specifically a fake download button and instructions to interact with the command line. It contains an external URI pointing to a suspicious URL, likely intended to host a secondary payload. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, limiting further analysis of execution flow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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-free-download-unblocked-game-hack
    • https://elearning.man1tapin.sch.id/__statics/gudangsoal/files/free-rare-cards-for-coin-master-christmas_GM406889139.pdf
    • https://elearning.man1tapin.sch.id/__statics/gudangsoal/files/how-long-is-the-minecraft-free-trial_GM479516143.pdf
    • https://elearning.man1tapin.sch.id/__statics/gudangsoal/files/best-roblox-hacks_GM431946152.pdf
    • https://elearning.man1tapin.sch.id/__statics/gudangsoal/files/http-appsmob-info-coin-master-hack_GM406889139.pdf
    • https://elearning.man1tapin.sch.id/__statics/gudangsoal/files/best-free-robux-sites_GM431946152.pdf
    • https://elearning.man1tapin.sch.id/__statics/gudangsoal/files/roblox-g_GM431946152.pdf
    • https://elearning.man1tapin.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link_GM406889139.pdf
    • https://elearning.man1tapin.sch.id/__statics/gudangsoal/files/coin-master-free-spins-deutsch-download-ios-link_GM406889139.pdf
    • https://elearning.man1tapin.sch.id/__statics/gudangsoal/files/coin-master-free-spins-23-march-2021_GM406889139.pdf
    • https://elearning.man1tapin.sch.id/__statics/gudangsoal/files/minecraft-pe-free-ios_GM479516143.pdf
    • https://elearning.man1tapin.sch.id/__statics/gudangsoal/files/free-robux-generator-com-roblox-hack_GM431946152.pdf
    • https://elearning.man1tapin.sch.id/__statics/gudangsoal/files/minecraft-for-free-games_GM479516143.pdf
    • https://elearning.man1tapin.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-hack_GM431946152.pdf
    • https://elearning.man1tapin.sch.id/__statics/gudangsoal/files/minecraft-pe-free-download-android_GM479516143.pdf
    • https://elearning.man1tapin.sch.id/__statics/gudangsoal/files/real-hack-for-coin-master_GM406889139.pdf
    • https://elearning.man1tapin.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021-today_GM406889139.pdf
    • https://elearning.man1tapin.sch.id/__statics/gudangsoal/files/free-robux-for-free_GM431946152.pdf
    • https://elearning.man1tapin.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdf
    • https://elearning.man1tapin.sch.id/__statics/gudangsoal/files/free-robux-com-real_GM431946152.pdf
    • https://elearning.man1tapin.sch.id/__statics/gudangsoal/files/aternos-free-minecraft-server_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004edd.bin
b53adeac0a089ea40b7e51075f91d827edc7a26eb4db66c3545eaca15b9a9cc4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4EDD 25336 bytes
font_01_sfnt_off0000882e.bin
351b73efa1cf4358b07b283040b01ec481d6b0b50516ad4f4e94e13994b713ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x882E 18804 bytes

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