Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d53be05ed12c7c…

MALICIOUS

PDF

35.7 KB Created: 2021-06-30 03:13:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 2f6697dbfd15e2de14f52b0fb387555c SHA-1: f909f7ab556df2c420bc4a549390222fba51752b SHA-256: c5d53be05ed12c7c312f335b171b915808eec354ffe8313fbff867f6ff1badb3
200 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/vehicle-simulator-roblox-cheat-scripts-game-hack In PDF document text
    • http://library.sdkmaterdei.sch.id/repository/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/minecraft-windows-10-hacked-client_GM479516143.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/booga-booga-roblox-hacks-free-download-2021_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-rocitizens-cheats-2021_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/cheat-engine-alternative-for-roblox_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/robloxhack-pro-gamerscom-robux_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/rbxcashcom-watch-videos-complete-offers-withdraw-to-robux-for-free_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-1-hit-kill-hack-the-ninja-way_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-hack-in-2021_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-prison-life-v20-infite-ammo-hack-2021_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/free-robux-scam-place-download_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/how-to-get-free-robux-on-roblox-on-a-tablet_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/is-tiktok-free_GM835599320.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/free-robux-hack-no-verification-need-no-password-needed_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/hack-into-other-people-roblox-account_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/irobux-fun-robux-hack_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/how-to-download-minecraft-for-free-on-iphone_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_off0000333b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x333B 22388 bytes
SHA-256: 240353d859bb6d43926b08562ed83dd108cacf27f37b74eaa7e8081078dea9d6
font_01_sfnt_off000064ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64EE 19588 bytes
SHA-256: 30c7352c8818c80ed096eff6128faceb7a15cc43520c4f444c52cb03c15accdd

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