Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9ea9cbcc7d2a6f3…

MALICIOUS

PDF

35.9 KB Created: 2021-05-22 10:44:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 109570b6637b67bdf02f8ba3d198516b SHA-1: 4f52d5922bd030e2dfd2764f593620cda2139f07 SHA-256: a9ea9cbcc7d2a6f38f0edc41c294ddab8c4404a2bc6b0b48100d1737cf20f077
122 Risk Score

Malware Insights

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

The PDF document contains social engineering lures, including a "Click here to download" phrase and instructions consistent with ClickFix attacks that trick users into running commands. It also presents a remote-support tool lure. The primary malicious URL, https://netcdn.xyz/app/479516143/how-to-get-a-cape-in-minecraft-for-free-game-hack, is embedded in the document body and flagged as an external URI, suggesting it leads to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

Heuristics 5

  • 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
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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-a-cape-in-minecraft-for-free-game-hack
    • https://www.springhead.staffs.sch.uk/admin/ckfinder/userfiles/files/coin-master-hack-account_GM406889139.pdf
    • https://www.springhead.staffs.sch.uk/admin/ckfinder/userfiles/files/free-robux-with-no-human-verification_GM431946152.pdf
    • https://www.springhead.staffs.sch.uk/admin/ckfinder/userfiles/files/free-robux-com-2021_GM431946152.pdf
    • https://www.springhead.staffs.sch.uk/admin/ckfinder/userfiles/files/free-bobux_GM431946152.pdf
    • https://www.springhead.staffs.sch.uk/admin/ckfinder/userfiles/files/50-free-spins-coin-master-links_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003547.bin
09c93ad3faeee5e0ab192a029b2e935225214c173d0c60adf4febea0c907d28c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3547 24248 bytes
font_01_sfnt_off00006bd3.bin
651613c0b0933ea46dfe34ab8437030315119b6d54c219aba7cf9326f75e4fa1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BD3 18052 bytes

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