Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f1696ceed4d8584…

MALICIOUS

PDF

10.8 KB Created: 2021-07-04 19:41:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 4267bff19796af3e02e8f1c7fb26fabc SHA-1: 0de87ee3854c86636ca981791205d19e524cfb1e SHA-256: 0f1696ceed4d85843205d8edcbf8bf7036d14677b11b35cdf9f78980dabbf159
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including one identified as a malicious redirector, which is designed to lure users into clicking on potentially harmful content related to game hacks and free currency. The presence of these links and the ML classifier's high confidence score indicate a malicious intent to redirect users to scam or malware distribution sites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9875

Heuristics 3

  • 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.
  • 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 http://netcdn.tw/app/406889139/coin-master-hack-no-verification-game-hack In PDF document text
    • https://yeushuen.com.tw/image/data/files/actual-free-robux_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/roblox-xbox-one-free-packages_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/best-free-roblox-executor_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/how-to-earn-free-robux-2021-xbox-one_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/free-robux-hack-android-2021_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/coin-master-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/coin-master-hack-spins-game-download_GM406889139.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/free-robux-discord_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/free-minecraft-website_GM479516143.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/free-roblox-bots_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/roblox-bighead-hack_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/legit-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/report-abuse-robox-paist-bin-free-robux-code_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/roblox-cb-ro-hack_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/how-to-hack-roblox-boys-and-girls-hangout_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/free-followers-no-human-verification-roblox_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • https://yeushuen.com.tw/image/data/files/how-to-free-robux-on-computer_GM431946152.pdfIn PDF document text