Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bdc45beda6fa56a…

MALICIOUS

PDF

34.1 KB Created: 2021-07-06 13:21:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f27146af187b528a72dc6db0cdbfff70 SHA-1: 581e13089f7a7644b1bbbe368bf61c055d883096 SHA-256: 0bdc45beda6fa56ae996019b1f26e1e6a69cba4dd04b27dc6a02480a6bf15e2e
160 Risk Score

Malware Insights

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

This PDF document employs a lure of free Robux and game hacks to entice users into clicking malicious links. The document contains multiple embedded URLs, including http://netcdn.tw/app/431946152/robux-hack-free-robux-game-hack, which is identified as a known malicious redirector. The presence of these links and the 'free generator' lure strongly suggest an attempt to redirect users to potentially malicious websites for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/robux-hack-free-robux-game-hack In PDF document text
    • http://ebook.itn.ac.id/repository/how-to-get-free-bundles-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/tiktok-free-movie-website_GM835599320.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/how-to-hack-roblox-with-console_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-robux-app-pc_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/coin-master-hack-program_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/roblox-twisted-murderer-hack_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/roblox-jojo-cheat-engine_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/coin-master-hack-apk-download-latest-version_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/doctor-louie-roblox_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/como-hackear-el-juego-coin-master_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-executors-for-roblox_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/how-do-i-get-free-spins-in-coin-master_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_off00002f48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F48 22320 bytes
SHA-256: 20b84b38b099c1d716478ca588a31c6cfa8684f4b41e4a75bd20ca6a2fd5c033
font_01_sfnt_off000060f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F0 18884 bytes
SHA-256: 28c83382703d1552e66c4ba49065192da850ec7c15b1cba66d0a11ad7ce6efaa

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