Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe023feb23965738…

MALICIOUS

PDF

32.0 KB Created: 2021-07-19 12:31:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 48d8268b6dc85251e18e53ea17b1d479 SHA-1: d4eefaa8cd2201337544495f2bde0401d3fdef96 SHA-256: fe023feb2396573807b345fd5dd9430bdb85b99fe5c12b26fecb334392486270
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure for a 'free generator / game hack' which redirects to malicious infrastructure. The document body explicitly contains the URL http://netcdn.tw/app/479516143/play-minecraft-online-free-game-hack, identified as a malicious redirector. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9936

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 http://netcdn.tw/app/479516143/play-minecraft-online-free-game-hack In PDF document text
    • https://trustindoutama.com/assets/CKImages/files/is-tiktok-free_GM835599320.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/minecraft-com-free_GM479516143.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-tiktok-video_GM835599320.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/get-free-robux_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-free-spins-app_GM406889139.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_off0000294f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x294F 22928 bytes
SHA-256: 41c4be92c64cb92cfcd8ebc7d28fd936407bcafcbc3913e36a2f0b58256f5316
font_01_sfnt_off00005c48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C48 17976 bytes
SHA-256: e953997c623ab1bd3546e7b188ca680e36d1015a1cf7f46efbbf98890a47325d