Malicious PDF — malware analysis report

Static analysis result for SHA-256 47d4501adb0907dc…

MALICIOUS

PDF

40.8 KB Created: 2021-04-27 03:22:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8ebdb70f1bcd97198b04c8c239ac6520 SHA-1: 28158f88eca4ebcd9051f797e54f5b849e3944b9 SHA-256: 47d4501adb0907dc0f501100a6c31617b8e06770245f966b3d270ea3d77757e2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as "free Robux" or game hacks. The document body explicitly contains a call to action to "CLICK HERE TO ACCESS ROBLOX GENERATOR" and directs users to a URL associated with malicious redirector activity. This indicates a social engineering lure to drive users to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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 https://netcdn.xyz/app/431946152/free-robux-codes-no-offers-game-hack In PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-cheat-source-leaked.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-without-human-verification-or-survey-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-no-verification-no-credit-card-no-surveys.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-breaking-point-hack.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-do-you-get-free-robux-easy-way.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-hack-roblox-with-v3rmillion.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-auto-clicker-for-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/tuto-free-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-griffin-code-roblox-adopt.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-skins-free-download-fnaf.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
stream_003_off00004113.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4113 26608 bytes
SHA-256: dcb1c59603fe38ffe5ed2a139a1db0ce0ff9b444804a4a602a8cfb82d5511a08
font_01_sfnt_off00007e2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E2A 18188 bytes
SHA-256: ddd0faa0b7046a5aadd64c1535d15c576f568ee1dcaaca8f78178e73ba431d0a