Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b5feda641b249ff…

MALICIOUS

PDF

32.7 KB Created: 2021-05-24 00:06:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 8e504911b705c338e2f5dbd09e1d0de3 SHA-1: a1aed0f4e383e79539707863bc2db866d5c94f87 SHA-256: 9b5feda641b249ff5eb849f5f7b86b0205c7a2129cd185acd3f3f0b703b0a8f9
92 Risk Score

Malware Insights

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

The PDF contains a link that masquerades as a 'free generator / game hack' for Minecraft, a common lure. This link redirects to a URL that appears to host a remote support tool, indicating a potential social engineering attack to gain unauthorized access. The document's structure and embedded URL strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0718

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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-pe-hack-client-game-hack PDF link annotation
    • 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_off00002b7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B7D 23312 bytes
SHA-256: 13bdb258cdfb15f43d187f029df19d3fa6e152cc0cec8ad80a146dd81559ce82
font_01_sfnt_off00005fd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD3 17968 bytes
SHA-256: a1bdeaf7b929e0321b1dbbf2b8f1cbdbbbd0c833166bb9e07af12e4b4538f125

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