Malicious PDF — malware analysis report

Static analysis result for SHA-256 67dad1c985a42e30…

MALICIOUS

PDF

37.4 KB Created: 2021-05-23 06:20:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d2d31a486e870300b44eee9d813d0125 SHA-1: b5cd81e8da0e40365792a7982cfd83d87ebdb7a1 SHA-256: 67dad1c985a42e30d7cd0d9505aec66d566074b25e9ca90cbe63320e64ee05e2
82 Risk Score

Malware Insights

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

The PDF document contains embedded URLs and lures the user with a fake download button, suggesting a phishing or scam attempt. It also instructs the user to interact with the command line, which is a common tactic for executing malicious payloads. 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-pe-free-download-game-hack
    • http://elearning.minailululum.site/__statics/gudangsoal/files/minecraft-pe-015-0-apk-free-download_GM479516143.pdf
    • http://elearning.minailululum.site/__statics/gudangsoal/files/can-you-get-robux-for-free_GM431946152.pdf
    • http://elearning.minailululum.site/__statics/gudangsoal/files/free-coins-coin-master_GM406889139.pdf
    • http://elearning.minailululum.site/__statics/gudangsoal/files/coin-master-hacks-for-iphone_GM406889139.pdf
    • http://elearning.minailululum.site/__statics/gudangsoal/files/coin-drop-master-free_GM406889139.pdf
    • https://discord.gg
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000035ff.bin
12a4a107f37d75c5c1411066fc19ae467ab1bf11fcde0e87ab25077b9ba5aa6f		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x35FF 25396 bytes
font_01_sfnt_off00007078.bin
41511c969eed7dcbefdd8737ff0e878d59d6c8a64165a5defd1345ec3b98e320		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7078 18444 bytes

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