Malicious PDF — malware analysis report

Static analysis result for SHA-256 b404ec8bacf6f88d…

MALICIOUS

PDF

37.7 KB Created: 2021-05-24 03:39:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b1edf29978fcda3ce978ae1960a9e6b6 SHA-1: 9740ea08f10e9e1e77faeeb7683333424682fd88 SHA-256: b404ec8bacf6f88d594eeb1157f0e6ce7e233d57e7d0eeeac83cf64e42256c66
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and text that mimic a download lure for 'Minecraft Windows 10 Edition Free'. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple suspicious URLs further supports this. The document's content and heuristics suggest it is designed to trick users into clicking malicious links, likely leading to malware download or further phishing attempts.

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/minecraft-windows-10-edition-free-game-hack
    • http://paro.net.ua/images/coin-master-hack-without-verification-site-zyngaplayerforumscom_GM406889139.pdf
    • http://paro.net.ua/images/free-robux-no-human-verification-or-survey_GM431946152.pdf
    • http://paro.net.ua/images/coin-master-hacks_GM406889139.pdf
    • http://paro.net.ua/images/what-games-give-you-robux_GM431946152.pdf
    • http://paro.net.ua/images/free-robux-only-username_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030bf.bin
1e4153709dc77d24d9096e2b4ebd3742701eb1ed6ac56056a3f0d813f7575406		 pdf-font-stream PDF embedded font (sfnt) at offset 0x30BF 30236 bytes
font_01_sfnt_off0000715f.bin
0bf31bed13672a3e0ec3830f17f3a108a804d8b157495bd7936eaddb95c84b8e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x715F 18524 bytes

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