Malicious PDF — malware analysis report

Static analysis result for SHA-256 79d1180b1d37cf2b…

MALICIOUS

PDF

36.2 KB Created: 2021-05-21 17:37:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b489bb4e9c542cc4c53dea3e2a0721ce SHA-1: c83ef1746672691e49891da395c10ab1c891bbf1 SHA-256: 79d1180b1d37cf2b79b1c01394d8a89f84566996dd57774989b36cb0649a7ab9
62 Risk Score

Malware Insights

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

The PDF contains an embedded URL and text that mimics a download button, directing the user to a URL associated with game hacks. The ML classifier also flagged this PDF as malicious. The presence of multiple related URLs suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/minecraft-classic-free-game-hack
    • https://www.omgtours.com/images/free-coins-and-spins-in-coin-master_GM406889139.pdf
    • https://www.omgtours.com/images/coin-master-free-spins-link-blogspot_GM406889139.pdf
    • https://www.omgtours.com/images/robux-hack-free-robux_GM431946152.pdf
    • https://www.omgtours.com/images/master-coin-hack-apk_GM406889139.pdf
    • https://www.omgtours.com/images/tiktok-free-no-download_GM835599320.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000328f.bin
475ba9924cb9e7fe9cfa93db7d47c72162950c1a84ecd05eb0baa737573b48fd		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x328F 27256 bytes
font_01_sfnt_off00006e62.bin
1ee95ff2a7de50dda93d1224861f64f53bfa9b684d20bd49bdd14d4804095e27		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E62 17644 bytes

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