Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d24170324eb1f80…

MALICIOUS

PDF

34.8 KB Created: 2021-06-29 22:52:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: db6a5850e873bf0a9efb90cd4af60972 SHA-1: 238b44eafbdd111845f4d2c7f82857bb2415e8a4 SHA-256: 1d24170324eb1f808a3488b2ff5c3531d806e2858dd382ccfb01f809d11699c4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as "free generators" or "game hacks" for popular games like Roblox and Minecraft. The primary malicious URL identified is http://netcdn.co/app/431946152/its-free-real-estate-roblox-game-hack. The presence of these links and the ML classifier's high confidence score indicate a phishing or malware distribution attempt.

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/its-free-real-estate-roblox-game-hack In PDF document text
    • http://www.my-travel.com.hk/upload/files/is-minecraft-free-on-switch_GM479516143.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/free-minecraft-severs_GM479516143.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/free-spins-for-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/free-tiktok-followers-no-human-verification-or-survey_GM835599320.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/coin-master-free-spin-link-today-50_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/roblox-god-simulator-hack-gui_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/roblox-svg-free_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/is-minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/como-tener-robux-gratis-en-roblox-2021-enero-nuevo-hack_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/comandos-hack-para-roblox_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/roblox-zone-hack_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/how-to-get-free-admin-commands-on-any-game-roblox_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/easytofindme-roblox-hack-script_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/how-to-get-java-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/free-robux-codes-2021-real_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_off0000325a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x325A 22260 bytes
SHA-256: 230de0d4e5ec75a78974d904dfce5d498f9ff1a25c42fec222d3d40ec90fe2d7
font_01_sfnt_off000063d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63D1 18752 bytes
SHA-256: 6eca7d8b6af786e239c1cfaacfcc460caeddb3a48bd5b1a3fc622f7f4c9e2be6