Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d850efc3720accf…

MALICIOUS

PDF

46.0 KB Created: 2021-05-15 11:47:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 400d47b9a87ef6678652a6b6aa509b65 SHA-1: 68d0bb11328a5ce854e6463c0c6a5dbb11d16ff3 SHA-256: 5d850efc3720accf39d0484e10bd35379f9c730b0e7d1d45f2c77e388cc09668
200 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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 https://netcdn.xyz/app/431946152/roblox-imagine-game-hack In PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/coin-master-extra-spins_GM406889139.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/minecraft-pocket-edition-free-apk_GM479516143.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/coin-master-hack-download-ios_GM406889139.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/free-robux-ad_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/what-is-coin-master-app_GM406889139.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/free-roblox-usernames-and-passwords_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/is-minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/hack-coin-master-apk-32-download_GM406889139.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/roblox-verification_GM431946152.pdfIn PDF document text
    • http://www.mondecasa.com/Public/upload/editorfiles/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004ba1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BA1 26460 bytes
SHA-256: f7fa8f18ffa1532b5d89482032b0c73ca3964bbb65a60133d9e31d535fd7a745
font_01_sfnt_off00008662.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8662 2844 bytes
SHA-256: baad2f3f6808f4af03fa9398e38c580c8d846f7f773a947d8cc1f39b2753d31a
font_02_sfnt_off00009024.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9024 18680 bytes
SHA-256: a55166a074bb895a998fc6ba58d68b2da5fbde3090d9bd557b4756abe288ee64

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