Malicious PDF — malware analysis report

Static analysis result for SHA-256 c47536e4265e5343…

MALICIOUS

PDF

46.4 KB Created: 2021-05-13 18:08:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cc9f5bfe2263c5a2cde3826f4af72f50 SHA-1: 87ac5ad3909f9d16c3ea908f81886faa9c55a186 SHA-256: c47536e4265e5343fbcb338f618e712dc1e0644595bb6d7edb2a7be6a3551ff0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and game hack lures, indicating a phishing or malware distribution attempt. The embedded links, such as 'https://netcdn.xyz/app/406889139/80-free-spins-coin-master-game-hack', are designed to trick users into visiting potentially harmful sites. The presence of multiple redirector links and the ML classifier's high confidence score support this assessment.

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/406889139/80-free-spins-coin-master-game-hack In PDF document text
    • http://immo360grad.com/images/coin-master-time-speed-hack_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://immo360grad.com/images/coin-master-hacked-apk-download-for-android_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/i-need-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/free-minecraft-wallpaper_GM479516143.pdfIn PDF document text
    • http://immo360grad.com/images/feb-23-2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/haktuts-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/free-rare-cards-for-coin-master-christmas_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/free-spins-on-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/coin-master-20-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/free-robux-come_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/is-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://immo360grad.com/images/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/free-robux-pins_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_off00004a31.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A31 27024 bytes
SHA-256: b0836f358a85a33196fede48b4d7d8633f71a14717512e2ffdd3d94cc9330b6d
font_01_sfnt_off000087fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87FD 3124 bytes
SHA-256: 9967c6221325a4ff3f7c4336922605f990450164c2eee2df708cc81823c6ec98
font_02_sfnt_off000092dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92DC 18268 bytes
SHA-256: c17bdfe55bcf294db1fa8b97ef7603a16e409092d20395243f391f783e354714

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