Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ca9672063e5af19…

MALICIOUS

PDF

33.4 KB Created: 2021-07-19 14:41:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4060815096d02db01c12f68fd300d045 SHA-1: 0c0d0307d13a26329b0b02a001a59413b0d5633b SHA-256: 5ca9672063e5af195ddf5baf0df3291dece0478306c23a281de27b3ab16a09c4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically advertising game hacks and free in-game currency. The primary malicious link identified is http://netcdn.tw/app/431946152/roblox-jailbreak-hack-game-hack. This lure is designed to entice users into clicking through to a potentially harmful site, likely for further exploitation or malware delivery. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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/431946152/roblox-jailbreak-hack-game-hack In PDF document text
    • https://www.manmed.info:443/images/hacker-minecraft-song_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-robux-accounts_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/minecraft-free-computer-game_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-minecraft-website_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/minecraft-redeem-code-free_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_off00002de9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DE9 22292 bytes
SHA-256: ff653f895d71ac4b99265b380002aa4d7f6ce866ef32a56a447d03b15ea33c94
font_01_sfnt_off00005f47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F47 18652 bytes
SHA-256: 238776d81d7079e64501f357c145a468ea3a1220ca00fff69d40e8c1a53c01cc