Malicious PDF — malware analysis report

Static analysis result for SHA-256 08b97653eeea5a8c…

MALICIOUS

PDF

36.1 KB Created: 2021-05-22 01:38:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 68ed0a853d0a529fa741d4f50493d9a5 SHA-1: e1e60d0b0cb6d65b3215dacbf5c12105e715aa0d SHA-256: 08b97653eeea5a8cac124b31d386b10cb2d3e7375a79b2dc58ccdd09681c86da
82 Risk Score

Malware Insights

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

The PDF document contains a lure for a 'Free Minecraft Java Edition' hack, directing users to a malicious URL. The 'ClickFix' heuristic indicates that the document likely instructs the user to execute a command or click a link, which is a common social engineering tactic to bypass security measures and download further malicious content. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

Heuristics 4

  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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/free-minecraft-java-edition-game-hack
    • https://www.lavigny.ch/images/robux-no-survey_GM431946152.pdf
    • https://www.lavigny.ch/images/minecraft-pe-hacks_GM479516143.pdf
    • https://www.lavigny.ch/images/free-robux-link_GM431946152.pdf
    • https://www.lavigny.ch/images/coin-master-free-rare-cards_GM406889139.pdf
    • https://www.lavigny.ch/images/free-roblox-groups-with-funds_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003418.bin
c2f241953585d246cf882e05938f5f9c7db9b35a782089f7a8bd156971728d83		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3418 24756 bytes
font_01_sfnt_off00006c14.bin
c8dc3c0ccaec2cbfabf4f7c22776233ed86b35e7dce69fc624c99833f95d0764		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C14 18164 bytes

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