Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ca00ed6f5a1d4cd…

MALICIOUS

PDF

36.3 KB Created: 2021-05-24 06:44:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 09edd3e126d51b78099e03383aa07f74 SHA-1: d2a2d76d08151f16899485402332ef83ecd24db5 SHA-256: 9ca00ed6f5a1d4cda4d3c123907dc87dd7f2c4b397c8a24fde220fa913b2216d
82 Risk Score

Malware Insights

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

The PDF document uses social engineering tactics, including a fake download button and deceptive text related to a 'Minecraft Free Download', to trick users into clicking malicious links. The embedded URLs point to external resources that likely host malware or facilitate further compromise. 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/minecraft-free-download-game-hack PDF link annotation
    • http://eurosystemssrl.it/images/free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://eurosystemssrl.it/images/free-modded-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://eurosystemssrl.it/images/freerobuxhack-us_GM431946152.pdfIn PDF document text
    • http://eurosystemssrl.it/images/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://eurosystemssrl.it/images/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://sigmaclient.info#2In PDF document text
    • https://flux.today#3In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003480.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3480 24908 bytes
SHA-256: e39a53d77544cc2ff32094a94e9a2c3b6bc0cbc414d50393a3805064eff44667
font_01_sfnt_off00006c93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C93 18292 bytes
SHA-256: eff5919d985126b8591bb7cd3dea6a103dcf6f67049ada279646be2986fdbf31

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