Malicious PDF — malware analysis report

Static analysis result for SHA-256 bceba0cba564bd27…

MALICIOUS

PDF

36.7 KB Created: 2021-05-21 04:23:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 364ab6a9087bb789edd98f9dac03492f SHA-1: 8ec4dfb70d3b91ac60674cdfccf9d9c4f7a657e5 SHA-256: bceba0cba564bd272b32384ac8a32d10c463d55a7225d8844996ad292f5dc860
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'free Minecraft alts' and directs users to a suspicious URL, 'https://netcdn.xyz/app/479516143/how-to-get-free-minecraft-alts-game-hack', which is likely a download site for malware. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs further supports a malicious intent to trick users into downloading potentially harmful content. No scripts were extracted, but the overall structure and embedded URLs indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

Heuristics 4

  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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-free-minecraft-alts-game-hack
    • http://www.my-travel.com.hk/upload/files/coin-master-spin-blogspot_GM406889139.pdf
    • http://www.my-travel.com.hk/upload/files/how-to-get-free-robux-on-mobile_GM431946152.pdf
    • http://www.my-travel.com.hk/upload/files/how-to-get-free-spins-in-coin-master_GM406889139.pdf
    • http://www.my-travel.com.hk/upload/files/free-robux-games-that-actually-work-2021_GM431946152.pdf
    • http://www.my-travel.com.hk/upload/files/robux-prices_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000360e.bin
942576fe0572f12a4fb0d3cfe0f9a84d8801c4977b5d597a7793a3682fc8b70c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x360E 25244 bytes
font_01_sfnt_off00006f3c.bin
269658f7a7a555eab253e34ae52e3b7e8d1bd144f37ca57273b9b28d07bafc6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F3C 17948 bytes

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