Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f7ac5966a3d8ff0…

MALICIOUS

PDF

45.4 KB Created: 2021-05-20 02:09:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 48f296dcd7589578b8bcab3f68d72b24 SHA-1: 56da4f90958dfe58ecb6ba575f1b2e78b1908c17 SHA-256: 4f7ac5966a3d8ff0d889c65e4a3fb93a90a85bc7a2d47bc3a702f98825adb9f2
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game hacks and coins to deceive users into clicking malicious links. It impersonates brands like Facebook, directing users to a known malicious redirector infrastructure. The embedded links are designed to lead users to potentially harmful content, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/835599320/tiktok-free-pro-app-download-game-hack.
  • 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/835599320/tiktok-free-pro-app-download-game-hack In PDF document text
    • https://www.belgium-archery.be/images/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/roblox-avatar-free_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/free-spins-on-coin-masters_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/minecraft-wurst-client_GM479516143.pdfIn PDF document text
    • https://www.belgium-archery.be/images/minecraft-hack-2021_GM479516143.pdfIn PDF document text
    • https://www.belgium-archery.be/images/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • https://www.belgium-archery.be/images/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/free-avatar-roblox_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/how-to-get-800-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/easy-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/free-spins-coin-master-site-wwwquoracom_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/roblox-free-hair-codes_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/2021-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/make-your-own-minecraft-server-free_GM479516143.pdfIn PDF document text
    • https://www.belgium-archery.be/images/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/client-minecraft_GM479516143.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
stream_003_off000047fb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47FB 26272 bytes
SHA-256: 4f4445bda44cefeacf6121d7387d27f8937868cb8b9760adceba6be19c990a75
font_01_sfnt_off00008307.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8307 3188 bytes
SHA-256: 6486d659dca4723f6326d63fa044c12d4c3ab62f780fd5a0ddb3c67ef1fb0e21
font_02_sfnt_off00008e0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E0E 18596 bytes
SHA-256: 594b867faa086d4fbe0696004d1c42e862af276191dc47a5443004e564b9ceeb

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