Malicious PDF — malware analysis report

Static analysis result for SHA-256 17ee0dfa0873e3b5…

MALICIOUS

PDF

49.2 KB Created: 2021-05-14 16:26:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 166d61deff4506cec3f9e4c62a014133 SHA-1: 580d84348a0f84c15fab3487ade4389fd7cc594a SHA-256: 17ee0dfa0873e3b529db41c76a0ce5c3dd4eab089a1c1dfe3e3522412525beb8
122 Risk Score

Malware Insights

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

This PDF document contains embedded URLs and exhibits social engineering lures, specifically instructing the user to copy and paste commands into a shell context, consistent with ClickFix attacks. The ML classifier also flagged this PDF as malicious. The primary URL, https://netcdn.xyz/app/431946152/robux-free-robux-game-hack, likely serves as a download source for a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8642

Heuristics 5

  • 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
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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/431946152/robux-free-robux-game-hack
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/roblox-premium-free_GM431946152.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/spin-links-for-coin-master_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/coin-master-hack_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/how-to-get-minecraft-java-edition-for-free_GM479516143.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/free-minecraft-account-reddit_GM479516143.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/roblox-group-free-robux_GM431946152.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/free-spins-on-coin-master_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/how-to-get-free-cards-sets-for-coin-master_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/roblox-free-clothes-hack_GM431946152.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/get-free-robux-today_GM431946152.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/free-spins-on-coin-master-2021_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/minecraft-pc-download-free-full-version_GM479516143.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/coin-master-spin-hack-without-verification_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/free-robux-codes-2021-not-used_GM431946152.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/stock-speed-coin-master-free-spins_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/how-to-get-a-free-minecraft-account_GM479516143.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/free-printable-roblox-images_GM431946152.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/how-can-i-play-minecraft-for-free_GM479516143.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/will-minecraft-dungeons-be-free_GM479516143.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/coin-master-free-spins-and-coins-daily-links_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c0b.bin
a899873c053805791bece87bad44a7d417e0c9ed7cc93696acf3107718cf077f		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C0B 26452 bytes
font_01_sfnt_off000087eb.bin
77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87EB 2832 bytes
font_02_sfnt_off00009196.bin
450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9196 5696 bytes
font_03_sfnt_off00009ea8.bin
3f1ded8a9c51e4f0f41c660fd84d3573ebe8f92a83837bcaa523a9614d650e73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9EA8 18012 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.