Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc8d20c0f2898e89…

MALICIOUS

PDF

45.3 KB Created: 2021-05-17 07:02:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5fc79e1c26d499bb42e2c6803016f651 SHA-1: d284de5fbc17a015e5d73a86cb0a0f6ca58365fa SHA-256: fc8d20c0f2898e89baef7a3fa88c02ef0d550c202e9cb082553fa6719703ebe5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as 'free generator' or 'game hack' lures. The primary URL, https://netcdn.xyz/app/479516143/free-games-like-minecraft-game-hack, is associated with a critical heuristic firing for malicious redirector infrastructure. The document body, though heavily obfuscated, contains references to similar lures and the authoring application suggests it was generated programmatically, likely to host these malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/free-games-like-minecraft-game-hack In PDF document text
    • http://brandyourbody.com/images/coin-master-hack-tool-generator_GM406889139.pdfIn PDF document text
    • http://brandyourbody.com/images/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • http://brandyourbody.com/images/coin-master-hack-app-for-ios_GM406889139.pdfIn PDF document text
    • http://brandyourbody.com/images/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://brandyourbody.com/images/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://brandyourbody.com/images/roblox-free-executor_GM431946152.pdfIn PDF document text
    • http://brandyourbody.com/images/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://brandyourbody.com/images/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://brandyourbody.com/images/hack-coin-master-apk-31_GM406889139.pdfIn PDF document text
    • http://brandyourbody.com/images/free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://brandyourbody.com/images/free-roblox-gift-card-codes-2021-unused_GM431946152.pdfIn PDF document text
    • http://brandyourbody.com/images/hacks-minecraft_GM479516143.pdfIn PDF document text
    • http://brandyourbody.com/images/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://brandyourbody.com/images/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://brandyourbody.com/images/coin-master-hack-apk-download-latest-version_GM406889139.pdfIn PDF document text
    • http://brandyourbody.com/images/free-minecraft-skins-java_GM479516143.pdfIn PDF document text
    • http://brandyourbody.com/images/how-to-hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • http://brandyourbody.com/images/rbx-hut-promo-codes_GM431946152.pdfIn PDF document text
    • http://brandyourbody.com/images/free-coin-master-spins-without-human-verification_GM406889139.pdfIn PDF document text
    • http://brandyourbody.com/images/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a5d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A5D 25764 bytes
SHA-256: cac3832fa7cf5130eca18b416c8936fcebe591a3f347f2947977d4592f74856b
font_01_sfnt_off000085fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85FD 2820 bytes
SHA-256: 972979c3a46100cf5f8fd289bc6fbd2496ff75fec0e3f6753648c72ec6eba714
font_02_sfnt_off00008f9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F9D 17996 bytes
SHA-256: 6316af01e653c53aa8313e9ee065e63d320a9dd1c98e4ac08eccbec55cd1c79a

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