Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce56b9efedbf952b…

MALICIOUS

PDF

31.5 KB Created: 2021-07-21 04:17:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5568acea2e3e5b8b73848e2c54bb0a75 SHA-1: e3b5af1086d113d956f5f7257a08df03db102526 SHA-256: ce56b9efedbf952b627802d3c446e41c6e7a3928990793bdc5536d749ae61731
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one pointing to known malicious redirector infrastructure at http://netcdn.tw/app/479516143/minecraft-classic-free-game-hack. The document body and embedded links suggest a lure for game-related cheats or generators, a common social engineering tactic. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a malicious redirection attempt, likely to deliver a second-stage payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9893

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/minecraft-classic-free-game-hack In PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/free-tiktok-video_GM835599320.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • https://perpustakaan.unitomo.ac.id/repository/minecraft-free-android_GM479516143.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_off00002adf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ADF 21968 bytes
SHA-256: 3dc926e6b8bc164daf171319bb34651e9ebf13ece960bfa0d4c6e79d597612a5
font_01_sfnt_off00005b00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B00 17644 bytes
SHA-256: 1ee95ff2a7de50dda93d1224861f64f53bfa9b684d20bd49bdd14d4804095e27

Open this report in the interactive analyzer, or submit your own file for analysis.