Malicious PDF — malware analysis report

Static analysis result for SHA-256 568924af55aacd2a…

MALICIOUS

PDF

19.0 KB Created: 2021-07-19 21:54:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 01481b1d8754f4d814f51a2fbcdb9920 SHA-1: bac535e0e4c0791f69d61b583c81d98928aca554 SHA-256: 568924af55aacd2a1968bb949948c5041cd7aa7873fbf09834345eabfdb97b6d
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to external websites, identified as malicious redirectors. The document body and embedded links suggest a lure for game-related cheats or generators, which is a common tactic for phishing or malware distribution. The primary malicious action observed is the redirection to potentially harmful URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9943

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/479516143/play-minecraft-pocket-edition-for-free-game-hack In PDF document text
    • http://winnerwater.com.tw/image/data/files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/free-tiktok-views_GM835599320.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/free-minecraft-account-and-password_GM479516143.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://winnerwater.com.tw/image/data/files/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text

Related samples 8

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