Malicious PDF — malware analysis report

Static analysis result for SHA-256 9424a54ed94e0c40…

MALICIOUS

PDF

36.6 KB Created: 2021-05-20 19:18:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 9dceeb2326e66010396cfe144cc60539 SHA-1: 5ae26dd7e9b96b63ddda3e5cb7b7588a6fa1f643 SHA-256: 9424a54ed94e0c403a84ed681a82a25129e8fcdaecb1c9c53693eca4efc65c5c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell T1203 Exploitation for Client Execution

The document contains a lure to execute commands via the clipboard, a common technique for downloading and running second-stage malware. The embedded URL points to a suspicious domain, likely hosting the payload. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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-font-free-game-hack
    • https://elearning.manbinjai.com/__statics/gudangsoal/files/free-roblox-accounts-with-robux_GM431946152.pdf
    • https://elearning.manbinjai.com/__statics/gudangsoal/files/how-to-get-free-hats-on-roblox_GM431946152.pdf
    • https://elearning.manbinjai.com/__statics/gudangsoal/files/robux-hack-free-robux_GM431946152.pdf
    • https://elearning.manbinjai.com/__statics/gudangsoal/files/minecraft-classic-free_GM479516143.pdf
    • https://elearning.manbinjai.com/__statics/gudangsoal/files/how-to-get-free-robux-without-verification_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000034ff.bin
43d9345a49b19cfc19149828d9a5b83bd996b8223eaa2e440345274f3c195d76		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34FF 25508 bytes
font_01_sfnt_off00006f86.bin
48684535abb05df1a4efb13fd94135dee175bf6b61229e4eaa41ff3ed13e5a52		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F86 17712 bytes

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