Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebbed8121958112e…

MALICIOUS

PDF

34.9 KB Created: 2021-07-05 11:40:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: afa080a9c56b1a842908d3d0a87ed466 SHA-1: 0d8bde27e63b7480af77a492118843082f092fc2 SHA-256: ebbed8121958112e718cd7312ed9b105232fb8b737f1c376ac38f496be5ffe98
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites that offer game hacks and free accounts, strongly suggesting a phishing or malware distribution attempt. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were explicitly extracted, the presence of embedded URLs and the document's theme indicate a likely attempt to redirect users to malicious sites for downloading unwanted software or credentials.

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/free-roblox-usernames-and-passwords-game-hack In PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-install-roblox-jailbreak-hacks_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-accounts-with-robux-2021-june_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/download-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-make-a-vip-server-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-how-to-get-free-admin-in-any-game_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/minecraft-pe-apk_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-get-free-hair-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/simple-hack-com-roblox_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-hack-apocalypse-rising-roblox_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/my-hero-academia-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-no-verification-download_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/pubg-uc-buy-paytm_GM1330123889.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-unlimited-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/paginas-para-hackear-roblox_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-snow-shoveling-simulator-lua-c-hack_GM431946152.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_off00003003.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3003 22440 bytes
SHA-256: c29070c13ba84d57c2d7e079972df003de2f604c225c73156d48ccdcedffbb45
font_01_sfnt_off00006238.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6238 19404 bytes
SHA-256: b4d7e0718cadd6570b52e100aa7612a9b6b6c25f53d59374595f6af98c828d97

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