Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f8a84d8a49842f6…

MALICIOUS

PDF

45.9 KB Created: 2021-05-16 14:27:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9adf38b8b302e85e8e10ec1ab9d78442 SHA-1: d06f2bd19fe56822fe54900e5da15188c4dde7f8 SHA-256: 6f8a84d8a49842f69be0f0b15cb8e8d6a72489cd051bcfb699037b20b5ce985a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising 'game hacks' and 'free spins' to lure users. The primary redirector URL is https://netcdn.xyz/app/406889139/reddit-coin-master-hack-game-hack, which likely serves as a gateway to further malicious content. The document body and embedded links suggest a social engineering tactic to trick users into clicking through to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/reddit-coin-master-hack-game-hack In PDF document text
    • https://www.manmed.info:443/images/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/minecraft-pe-hack-client-ios_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/body-roblox_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-spins-coin-master-android_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/coin-master-apk-hack-download_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-spins-october-28-2021-coin-master_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/download-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/coin-master-hack-version-2021_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-robux-today_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-mojang-account-with-minecraft_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-mods-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/robuxglobalcom_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/card-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/apps-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-minecraft-server-hosting-with-plugins_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-robux-generator-no-human-verification_GM431946152.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_off00004988.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4988 27328 bytes
SHA-256: 9fc07b44394f2e3c7643364e0cb6b31da56d7b782905b81df7c1233e3dcdfa4a
font_01_sfnt_off0000886e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x886E 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off0000921f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x921F 17888 bytes
SHA-256: 4ced6d1736eaf1183f21a550cef0691f5f50ec9f529720bbb8623e36addd1710

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