Malicious PDF — malware analysis report

Static analysis result for SHA-256 04fdda03f849b37a…

MALICIOUS

PDF

36.6 KB Created: 2021-05-20 18:19:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c4fbd3dd41c775e6fa0a3cb0a836629c SHA-1: cbef1c8d5fe9df2a2c60d4a5c3677b450d8b4efa SHA-256: 04fdda03f849b37adea9e9b1b9f0700e4c1ecf9a4aa92cf1c904ddce4f614fcc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising 'free generators' and 'game hacks'. The presence of a 'CLICK HERE TO ACCESS MINECRAFT GENERATOR' call-to-action further supports the lure. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to exploit vulnerabilities or trick the user into downloading a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/windows-10-minecraft-hacks-game-hack In PDF document text
    • https://is.itk.ac.id/asset/backend/upload/ckeditor/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • https://is.itk.ac.id/asset/backend/upload/ckeditor/files/minecraft-free-apk-java-edition_GM479516143.pdfIn PDF document text
    • https://is.itk.ac.id/asset/backend/upload/ckeditor/files/coin-master-hack_GM406889139.pdfIn PDF document text
    • https://is.itk.ac.id/asset/backend/upload/ckeditor/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://is.itk.ac.id/asset/backend/upload/ckeditor/files/100-free-spins-for-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_off000034e7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34E7 24332 bytes
SHA-256: b510e53b92c1c10eec38de0661b395b4b0d9723183cb9d7aac4f40bd4e6d9a38
font_01_sfnt_off00006c6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C6D 18696 bytes
SHA-256: 404a6a828e36ead2d4cd56abe684579086ad140455fa529c5546af7349081cf7

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