Malicious PDF — malware analysis report

Static analysis result for SHA-256 08ce7d60599d10b9…

MALICIOUS

PDF

46.5 KB Created: 2021-05-16 18:54:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8c5983aa1b3e4da118187e1a31a8329c SHA-1: 19b00243dacfc3d163c9e7673a571aa044165253 SHA-256: 08ce7d60599d10b921aba2686dfb358bd1b5ce0daf533c3206df5999d4fe0559
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is designed as a lure, using the guise of free game currency or hacks to trick users into clicking malicious links. The embedded URLs, such as https://netcdn.xyz/app/406889139/coin-master-free-spins-may-11-2021-game-hack, are identified as malicious redirectors. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to redirect the user to a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/406889139/coin-master-free-spins-may-11-2021-game-hack In PDF document text
    • http://www.mostraining.co.za/images/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.mostraining.co.za/images/free-robux-today_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/get-robux-com_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/coin-master-free-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://www.mostraining.co.za/images/mcpe-master-hack-coin-apk_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/coin-master-free-coins-twitter_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.mostraining.co.za/images/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://www.mostraining.co.za/images/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • http://www.mostraining.co.za/images/minecraft-free_GM479516143.pdfIn PDF document text
    • http://www.mostraining.co.za/images/coin-master-hack-2021-without-human-verification_GM406889139.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_off00004b49.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B49 29432 bytes
SHA-256: 7230511ca794a7955d45edca52878e092eea83321270dd8ea99ad5f22a49aeca
font_01_sfnt_off000088d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88D8 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00009289.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9289 18468 bytes
SHA-256: bb3ef349dd312a4833457681dbcdc20310c274234c2a49708779878fc95cd0a3

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