Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff826b3dd2317857…

MALICIOUS

PDF

37.8 KB Created: 2021-05-23 19:45:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 2f69fded7980cc8ca5d8f51a94d29941 SHA-1: d21f991e5ed23b2a9b5c2d9b0295e75a8747bbbb SHA-256: ff826b3dd23178572510202c35324ae2f4cdd76b5cbe8785a9fc3dd820d7ef6d
82 Risk Score

Malware Insights

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

The PDF document contains a lure for a 'Minecraft Free Install' and a 'CLICK HERE TO ACCESS MINECRAFT GENERATOR' call to action. It also includes a heuristic firing for a social engineering attack (ClickFix) that instructs the user to press Win+R or paste a command into a terminal, likely to bypass macro restrictions and execute a malicious payload. The embedded URLs point to external resources that likely host the second-stage malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9407

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-install-game-hack PDF link annotation
    • http://dieter-sauter.com/images/coin-master-hack-online-generator_GM406889139.pdfIn PDF document text
    • http://dieter-sauter.com/images/free-robux-com_GM431946152.pdfIn PDF document text
    • http://dieter-sauter.com/images/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • http://dieter-sauter.com/images/minecraft-windows-10-mod-menu_GM479516143.pdfIn PDF document text
    • http://dieter-sauter.com/images/daily-free-spins-on-coin-master_GM406889139.pdfIn 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
stream_002_off000039ce.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x39CE 25920 bytes
SHA-256: 7b6c7e0d0ee784c0db69d129610c9017183403bae4f13b9de7080aaf585d460c
font_01_sfnt_off000074da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74DA 17644 bytes
SHA-256: 633b33bb140344f1759210963491f1aee0e41bd13e53d96deaa22883d252c2f8

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