Malicious PDF — malware analysis report

Static analysis result for SHA-256 c49123b586a79aa6…

MALICIOUS

PDF

34.2 KB Created: 2021-06-25 23:13:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a81b354dcb7ed886bf4cd5e9d5f9309e SHA-1: a43350e4b54cd35deef285ce22b1e416615e9776 SHA-256: c49123b586a79aa6329a002d9f1ef369e3d74b2a79cd06c582f55cfc2783fe1c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into downloading or accessing free game hacks and generators. One primary link, http://netcdn.co/app/431946152/script-to-roblox-free-game-hack, redirects to known malicious infrastructure. The document body and heuristics indicate a social engineering tactic to trick users into visiting these sites, likely leading to further malware downloads or phishing.

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/431946152/script-to-roblox-free-game-hack In PDF document text
    • https://deutsch-study.com/image/data/files/minecraft-windows-10-code-free_GM479516143.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/andi-robux-free_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/download-the-free-robux-generator-for-roblox_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/coin-master-free-spin-link-today-download_GM406889139.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/roblox-tracker_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/haktuts-coin-master-free-spin-link-today_GM406889139.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/how-to-get-100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/free-tiktok-like_GM835599320.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/free-private-minecraft-server_GM479516143.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/coin-master-unlimited-spin-link_GM406889139.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/honest-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/free-robux-no-download_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/hack-coin-master-app-ios_GM406889139.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/coin-master-100-spin_GM406889139.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/free-robux-mobile_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/coin-master-root-hack_GM406889139.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/how-to-play-minecraft-with-friends-for-free_GM479516143.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
font_00_sfnt_off00002f66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F66 22144 bytes
SHA-256: 291852477283e104484e54dbeb507abef553cac15b2788ac864f68b61869bb01
font_01_sfnt_off000060b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B4 19048 bytes
SHA-256: ec35ab3f3bf1533441ccc0a3c41fc63913e8eac952a0af206c3ea108f44c0020

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