Malicious PDF — malware analysis report

Static analysis result for SHA-256 49730e269d4607b2…

MALICIOUS

PDF

42.5 KB Created: 2021-05-19 07:17:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5c1bfe9b81502f325e35b3f7538dbd32 SHA-1: b8dfbfceee9e7132e1256fa21746b74acfb5e6e2 SHA-256: 49730e269d4607b2736dd79d7a07e6408a6810600b23e9a4698ec19b38bbee77
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to redirector infrastructure, specifically advertising 'free generators' and 'game hacks' for popular games. The ML classifier strongly flagged this PDF as malicious. The presence of embedded URLs and the lure of free game-related content suggest a phishing or scam attempt designed to redirect users to potentially malicious sites.

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/835599320/tiktok-free-download-for-pc-game-hack In PDF document text
    • https://www.wannon.tw/upload/files/haktuts-2021-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/tiktok-free-roblox-accounts-2021_GM835599320.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/dailyrobux_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/roblox-earn_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/free-spin-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/coin-master-daily-free-spins-blog_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/hack-coin-master-iphone_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/free-minecraft-java-edition-codes_GM479516143.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/coin-master-hack-tool-apk-download_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/free-robux-no-human-verification-no-survey_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_off0000478a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x478A 26416 bytes
SHA-256: d318578b87f33f2a392b2a22da08460cdd777c96b84534489c4828ca4a9ba922
font_01_sfnt_off0000836e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x836E 18416 bytes
SHA-256: 8fd713fdfcb7290fc18fae5768e6f0c310a76206a35b57e376875146c0720cde