Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6a74747f228500…

MALICIOUS

PDF

44.6 KB Created: 2021-05-15 09:41:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-17
MD5: 7282c824ab9d2c3ff6bde9c9e3f6a937 SHA-1: c41e0c76b410b89f4819e626fc10581eb91bbdb8 SHA-256: 2b6a74747f228500d441488f7b483cf13f585ba85594d66bf150e7759eca5ec3
180 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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-chip-game-hack In PDF document text
    • http://behsanroshd.com/images/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/www-coinmaster-com_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-offline-hack_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/robloxbux-us-generator_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-hack-tool-pc-download_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/daily-coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/earnrobux_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-hack-apk-with-fb-login-2021_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-play-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/free-robux-generator-no-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_off00004902.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4902 24956 bytes
SHA-256: b74c7623c895787fd3ba14ab7519efded120f5ade3e80f7076a921e9260297c8
font_01_sfnt_off0000827d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x827D 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00008c68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C68 18052 bytes
SHA-256: ba3acf3ed697f48690604da7cc833c5df3eb06befc0ffeb0890f4c11738fad23