Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e7742348705ba4d…

MALICIOUS

PDF

42.1 KB Created: 2021-05-16 16:40:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d9aaad51f5738a2e93b7e71df937b9ab SHA-1: 7d58956891886e6db356df9306e04d93e0b07cc9 SHA-256: 6e7742348705ba4dd9931fefaa616e25df58e794bc9f5dd3d163a028da025445
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to game hack generators and free item lures, identified as malicious redirectors. The document body and embedded links suggest a social engineering tactic to trick users into visiting potentially harmful sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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-hack-link-2021-game-hack In PDF document text
    • http://firesafetyservices.biz/images/coinmaster-spin-ml-link_GM406889139.pdfIn PDF document text
    • http://firesafetyservices.biz/images/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://firesafetyservices.biz/images/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://firesafetyservices.biz/images/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://firesafetyservices.biz/images/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • http://firesafetyservices.biz/images/roblox-top_GM431946152.pdfIn PDF document text
    • http://firesafetyservices.biz/images/free-minecraft-domain_GM479516143.pdfIn PDF document text
    • http://firesafetyservices.biz/images/bad-minecraft-free_GM479516143.pdfIn PDF document text
    • http://firesafetyservices.biz/images/coin-master-hack-ios-jailbreak_GM406889139.pdfIn PDF document text
    • http://firesafetyservices.biz/images/coin-master-spin-blogspot_GM406889139.pdfIn PDF document text
    • http://firesafetyservices.biz/images/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://firesafetyservices.biz/images/coin-master-hack-program_GM406889139.pdfIn PDF document text
    • http://firesafetyservices.biz/images/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://firesafetyservices.biz/images/coin-master-free-spins-activegamer_GM406889139.pdfIn PDF document text
    • http://firesafetyservices.biz/images/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://firesafetyservices.biz/images/coin-master-free-spins-2021-blogspot_GM406889139.pdfIn PDF document text
    • http://firesafetyservices.biz/images/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://firesafetyservices.biz/images/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://firesafetyservices.biz/images/get-free-spins-on-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://firesafetyservices.biz/images/free-robux-without-downloading-apps_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_off0000491b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x491B 25116 bytes
SHA-256: 1823406c85d3029d51a02b344c875a6e16ac893587665867a79235e300778364
font_01_sfnt_off00008252.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8252 18116 bytes
SHA-256: 25e00f41f2782f9bb0485ec3dace01d1d73ef8bc3473ddf3ed3584f1f3c729b7

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