Malicious PDF — malware analysis report

Static analysis result for SHA-256 241610a7f710a64c…

MALICIOUS

PDF

7.8 KB Created: 2021-07-19 00:37:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 18148228d1869ce7630fb174b195d170 SHA-1: e10ac06a7158b4eeda6c02b59616756ce4e488cc SHA-256: 241610a7f710a64c0fe5f67d9125ca9f46abb8f0eb836076ca6c595a23fcc4f2
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple links, including one that redirects to known malicious infrastructure. The document body and embedded links suggest a lure for game-related cheats or generators, a common social engineering tactic. The presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent, likely to redirect users to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8542

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/minecraft-free-computer-game-game-hack In PDF document text
    • https://www.tqma.com.ec/images/free-views-on-tiktok_GM835599320.pdfIn PDF document text
    • https://www.tqma.com.ec/images/make-free-robux_GM431946152.pdfIn PDF document text
    • https://www.tqma.com.ec/images/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • https://www.tqma.com.ec/images/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • https://www.tqma.com.ec/images/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text