Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d313b661970ab39…

MALICIOUS

PDF

34.7 KB Created: 2021-06-18 16:23:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-14
MD5: f9a9744455b6a1e60005da027c748a92 SHA-1: 930f34121cde4aba38018d9dde385f463357f741 SHA-256: 0d313b661970ab39b012da768bafe724fcaf0eb1e847d41431bb0f98c678d6fe
160 Risk Score

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/roblox-hacks-mod-menu-game-hack In PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/coin-master-free-spins-and-coins-app-download_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/free-coin-spin-daily-link-net_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/coin-master-free_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/roblox-free-builders-club-membership_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/como-hackear-coin-master-2021-espaol_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/static-moonactive-net-rewards-2021_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/roblox-noclip-download-hack_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/download-lag-free-version-of-roblox_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/roblox-farming-simulator-hacks_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/free-robux-hack-really-works_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_off00002f3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F3F 22668 bytes
SHA-256: 87beab19c0e73e4477c84e7f0ca3cc9a53792139c284a27339fc657fa8e333a0
font_01_sfnt_off00006211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6211 19164 bytes
SHA-256: e61feeb6715491da5d7e601631f46ee064a8cbda33ac74c213d28c266d7162e1

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