Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e005c09ecb0418f…

MALICIOUS

PDF

41.9 KB Created: 2021-05-13 23:31:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 34eb6248585f8a8d7a9a5aab643c21eb SHA-1: 864a48374e921d64ae210738d38c9dbb7b66f407 SHA-256: 4e005c09ecb0418f3b08693e164227adff0d107229c89ad3dd69bb58a4168780
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirector infrastructure, specifically promoting 'free generator / game hack' lures. The embedded URLs, such as https://netcdn.xyz/app/406889139/coin-master-free-spins-hack-no-human-verification-game-hack, are designed to lead users to potentially harmful content or further malicious downloads. The document body and heuristics confirm the intent to trick users into clicking these links under the guise of obtaining game cheats or currency.

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/406889139/coin-master-free-spins-hack-no-human-verification-game-hack In PDF document text
    • http://citycare.pt/images/coin-free-spin_GM406889139.pdfIn PDF document text
    • http://citycare.pt/images/is-java-minecraft-free_GM479516143.pdfIn PDF document text
    • http://citycare.pt/images/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://citycare.pt/images/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://citycare.pt/images/coin-master-32-hack-apk_GM406889139.pdfIn PDF document text
    • http://citycare.pt/images/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • http://citycare.pt/images/coin-master-hack-link-2021_GM406889139.pdfIn PDF document text
    • http://citycare.pt/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://citycare.pt/images/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://citycare.pt/images/latest-free-spin-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://citycare.pt/images/pig-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://citycare.pt/images/coin-master-link-app_GM406889139.pdfIn PDF document text
    • http://citycare.pt/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://citycare.pt/images/coin-master-400-spin-link-today_GM406889139.pdfIn PDF document text
    • http://citycare.pt/images/coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • http://citycare.pt/images/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://citycare.pt/images/best-site-for-free-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://citycare.pt/images/free-minecraft-skins-pe_GM479516143.pdfIn PDF document text
    • http://citycare.pt/images/coin-master-daily-free-spins-today_GM406889139.pdfIn PDF document text
    • http://citycare.pt/images/how-to-change-your-name-in-roblox-for-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_off00004871.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4871 25124 bytes
SHA-256: 55bd94a242d2c077a97f7e3062a2b28aff832124777390b6a3eee007910bda39
font_01_sfnt_off000080bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80BF 18588 bytes
SHA-256: 081cdec62be70198d45fc172e7048a56943a6446be15e687158c1977e2c6d250

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