Malicious PDF — malware analysis report

Static analysis result for SHA-256 269f900e4f115e96…

MALICIOUS

PDF

48.2 KB Created: 2021-05-16 19:01:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a3cefe6343832c51d3d70f4cc0d9a15a SHA-1: b782c733ceff5ec9d5e313a0722ab618a281c6c8 SHA-256: 269f900e4f115e96601667b266d7e051e2d786ca3e7511a5d2815faf3b34fd2c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document employs a lure related to free game currency and hacks, directing users to multiple malicious redirector URLs. The primary malicious URL identified is https://netcdn.xyz/app/431946152/free-robux-websites-that-actually-work-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to redirect users to potentially malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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/431946152/free-robux-websites-that-actually-work-game-hack In PDF document text
    • http://www.jsvillas.com.tw/assets/files/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • http://www.jsvillas.com.tw/assets/files/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • http://www.jsvillas.com.tw/assets/files/coin-master-free-spins-generator-no-verification_GM406889139.pdfIn PDF document text
    • http://www.jsvillas.com.tw/assets/files/coin-master-hack-spin-ios_GM406889139.pdfIn PDF document text
    • http://www.jsvillas.com.tw/assets/files/coin-master-hack-software_GM406889139.pdfIn PDF document text
    • http://www.jsvillas.com.tw/assets/files/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • http://www.jsvillas.com.tw/assets/files/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://www.jsvillas.com.tw/assets/files/coin-master-free-spin-today-2021_GM406889139.pdfIn PDF document text
    • http://www.jsvillas.com.tw/assets/files/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.jsvillas.com.tw/assets/files/coin-master-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • http://www.jsvillas.com.tw/assets/files/roblox-earn-robux_GM431946152.pdfIn PDF document text
    • http://www.jsvillas.com.tw/assets/files/generator-robux_GM431946152.pdfIn PDF document text
    • http://www.jsvillas.com.tw/assets/files/coin-master-apk-hack-32_GM406889139.pdfIn PDF document text
    • http://www.jsvillas.com.tw/assets/files/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
    • http://www.jsvillas.com.tw/assets/files/coin-master-free-spins-and-coins-app_GM406889139.pdfIn PDF document text
    • http://www.jsvillas.com.tw/assets/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://www.jsvillas.com.tw/assets/files/free-spin-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.jsvillas.com.tw/assets/files/free-coin-spin-daily-link-net_GM406889139.pdfIn PDF document text
    • http://www.jsvillas.com.tw/assets/files/coin-master-free-gift-cards_GM406889139.pdfIn PDF document text
    • http://www.jsvillas.com.tw/assets/files/win-free-robux_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_off00004a98.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A98 28616 bytes
SHA-256: df0878b90f2c56bae3e6c40ba9159a24737ce78990aaddc67ca4aaca49213af4
font_01_sfnt_off00008a87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A87 3656 bytes
SHA-256: 63a179d8a9645bea05c6d53b1776faf4e4a7281930de6cf484e639846bec2e20
font_02_sfnt_off00009740.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9740 19252 bytes
SHA-256: f49525d2cb353299e95430044cca9c62699809686ebb763340304ea0e82a2cbb

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