Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d96540f25329068…

MALICIOUS

PDF

45.2 KB Created: 2021-06-14 00:57:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0ca983494d89c1906b278d7886e176b0 SHA-1: 82d2690da7100568420d476abc2c901f85b24d15 SHA-256: 6d96540f25329068cbb7299e667a4af145b9dbebc2e625c1b5856f0e99777ae0
160 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating it links to malicious redirector infrastructure, specifically targeting users interested in game hacks. The embedded URL 'http://netcdn.co/app/479516143/is-minecraft-java-edition-free-game-hack' is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to game hacks and the malicious URL, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/479516143/is-minecraft-java-edition-free-game-hack In PDF document text
    • http://www.library.gkigadingserpong.org/repository/free-robux-live_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/hacks-roblox-royal-jelly_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/icebreaker-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/coin-master-hack-programers_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/create-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/aincrad-online-free-beta-roblox_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/legit-coin-master-hack-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/www-robux_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/growbux-net-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/tiktok-free-hulu-account_GM835599320.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/how-to-get-free-robux-without-hacking-2021_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/free-spin-and-win-coin-master_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/roblox-sign-in-free_GM431946152.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_003_off00004d8e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D8E 29012 bytes
SHA-256: 75014a8a4310cf9347039d0707ecc291851811173fea152f0080feba6ab4935c
font_01_sfnt_off00008ed8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ED8 18164 bytes
SHA-256: 781be49a7702cf06049b723b9768b43598e981f21f4500b8f56603e8064b4811

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