Malicious PDF — malware analysis report

Static analysis result for SHA-256 706e873bedc8d64f…

MALICIOUS

PDF

35.2 KB Created: 2021-06-28 22:30:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c87ed1e42de0f34514c99b10410698df SHA-1: a254cbeb1bc8c0fb5f1a3e2fa4c755294f3601d9 SHA-256: 706e873bedc8d64fe6b1834a4c9aa524fa260cbc859891a5381bfd80b49a36c4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free generators to entice users to click on embedded links. The primary link, http://netcdn.co/app/431946152/pastebin-free-robux-hack-2021-game-hack, is identified as a malicious redirector. The document body and heuristics indicate a social engineering tactic to drive traffic to potentially malicious sites, likely for further payload delivery or credential harvesting.

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.co/app/431946152/pastebin-free-robux-hack-2021-game-hack In PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/coin-master-email-rewards-link_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/roblox-stands-online-cheats_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/coin-master-hack-app-ios-download_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/roblox-hack-page_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/coin-master-hack-pro_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/how-to-hack-roblox-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/what-tiktok-free-like_GM835599320.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/master-coins-free_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/vortex-premium-key-free-roblox_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/roblox-how-to-hack-games_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-hack-builders-club_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/pant-free-roblox-sharkblox_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/how-do-you-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/how-to-get-minecraft-bedrock-for-free-with-java_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_off00002fa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA9 22880 bytes
SHA-256: 04bec0f4fac8d553bf1956e9bfbcd04dfee552e0df5563ab6cab89cef3fb7263
font_01_sfnt_off000062ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62EE 19664 bytes
SHA-256: 875fb1f1d4e9973dedfea050b1a543b6ad6cb100f8982130c22dbb88e206b19a

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