Malicious PDF — malware analysis report

Static analysis result for SHA-256 22a14c2a339ef94a…

MALICIOUS

PDF

35.8 KB Created: 2021-05-24 03:40:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 6ad86ea580733f64e0189e62eb0677b8 SHA-1: c8e6511c7aff72250f17c24c664fca6caf6686bc SHA-256: 22a14c2a339ef94a805e78f9b650960891dc55ad235e97fa846fe17d662e4a4b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document uses a lure related to "Minecraft Education Free" and a "CLICK HERE TO ACCESS MINECRAFT GENERATOR" call to action, which is a common tactic for distributing malware. The presence of multiple embedded URLs pointing to PDF files and a high-confidence ML classifier firing strongly suggest malicious intent. The document body also contains a URL that appears to be the primary download link for the malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

Heuristics 4

  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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-education-free-game-hack PDF link annotation
    • http://www.eptaviation.com/images/tiktok-free-net_GM835599320.pdfIn PDF document text
    • http://www.eptaviation.com/images/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://www.eptaviation.com/images/coin-master-hack-facebook_GM406889139.pdfIn PDF document text
    • http://www.eptaviation.com/images/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://www.eptaviation.com/images/coin-master-spin-link-free-download_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
font_00_sfnt_off00003495.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3495 24312 bytes
SHA-256: ccd2a54b70b321fe2e9f7df3aef8a17c52d6ca6f63a7b8320742cfee05fc0564
font_01_sfnt_off00006b3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B3A 18024 bytes
SHA-256: 50b2d5ff22f0b3ffa840834f12cbec9953eabd3c4e347b5eb6eb3aff22325aed

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