Malicious PDF — malware analysis report

Static analysis result for SHA-256 05b465f442e886c6…

MALICIOUS

PDF

41.3 KB Created: 2021-05-13 18:00:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f6a0dc561e714f3f476adf512dc07bfa SHA-1: 6acedeaf5f0a55b55f66c9fb067e9f98a97c9c1b SHA-256: 05b465f442e886c6a5b4ebc221e654e3516d1c9da9f6c8adce4d3e3118ca0f5e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and game hack lures, such as 'robux-fun-hack-game-hack'. The document body, though heavily obfuscated, also contains similar URLs. The presence of these links and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/431946152/robux-fun-hack-game-hack In PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/coin-master-free-spins-link-quora_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/roblox-ftw_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/how-to-get-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/how-to-hack-coin-master-with-game-guardian_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/minecraft-java-edition-key-free_GM479516143.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/hack-the-coin-master_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/minecraft-free-version_GM479516143.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/how-you-get-robux_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/minecraft-skins-free-girl_GM479516143.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/coin-master-free-daily-rewards_GM406889139.pdfIn PDF document text
    • https://krnl.rocksIn 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_003_off00004726.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4726 24228 bytes
SHA-256: dcce018e3b3925f6251d3dea18b202570f854d4c04bce35860649b0842e1d8a0
font_01_sfnt_off00007ea1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EA1 18412 bytes
SHA-256: 5f8acd8ad37749349105b070ed73c2c3c7a96b7e2283405d761bfe738e73485c

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