Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ca55114c47d2251…

MALICIOUS

PDF

44.0 KB Created: 2021-06-09 07:22:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: af7368b0050f1bde6a1f1499191c4e18 SHA-1: 9444fedcf4c863c303bc6c2d0c11d204eb7feff9 SHA-256: 8ca55114c47d225129cfaf4addcbec15432865d985f49e28cc436a5d5dc561b2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains embedded URLs and a document body that advertises game hacks and cheats, aiming to trick users into downloading malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple external URIs further supports a suspicious nature. The primary lure appears to be related to Roblox and Minecraft exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/roblox-money-hack-script-pastebin-game-hack In PDF document text
    • https://sunnygarden.com.tw/image/data/files/roblox-games-free_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/roblox-executor-free_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/coin-master-free-spins-5-10-2021_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/coin-master-hack-tool-access-online-generator_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/coin-master-download-hack_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/coin-master-latest-version-hack_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/coin-master-free-spin-and-trading-group_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/how-to-get-robux-fast_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/how-do-you-get-robux_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/free-roblox-avatar-ideas_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
font_00_sfnt_off00004e3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E3A 24688 bytes
SHA-256: 2087c686e47a0d9d51240b6878d7610e272f5ababf4967012f7f8cbac47d2c21
font_01_sfnt_off000086e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86E8 19112 bytes
SHA-256: 3eaad39b56f730798980429ef93ab7a626c61c2500a7da226e14be6cc8d3b415

Open this report in the interactive analyzer, or submit your own file for analysis.