Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f94a723a2477b89…

MALICIOUS

PDF

43.6 KB Created: 2021-05-11 01:01:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0bf369f9422bbf21e1707d4e2f2e7d41 SHA-1: 692270ee23bf1bab038914432173444d0c8fa0d6 SHA-256: 4f94a723a2477b89ad4a64ee7bcd1b5a760a8bd635f5d66e937c8f2cf77a3010
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically advertising free game items and hacks. The primary lure is a 'free Roblox followers generator'. The document's structure and embedded links suggest it is designed to trick users into visiting malicious websites, likely to download further malware or engage in credential harvesting. No scripts were extracted, but the PDF's nature points towards a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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 https://netcdn.xyz/app/431946152/free-roblox-followers-generator-2021-game-hack In PDF document text
    • http://dottgagliardi.com/images/free-spins-for-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://dottgagliardi.com/images/free-outfits-roblox_GM431946152.pdfIn PDF document text
    • http://dottgagliardi.com/images/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://dottgagliardi.com/images/how-to-change-your-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://dottgagliardi.com/images/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://dottgagliardi.com/images/coun-master_GM406889139.pdfIn PDF document text
    • http://dottgagliardi.com/images/hack-coin-master-spin-apk_GM406889139.pdfIn PDF document text
    • http://dottgagliardi.com/images/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • http://dottgagliardi.com/images/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://dottgagliardi.com/images/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://dottgagliardi.com/images/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://dottgagliardi.com/images/coin-master-spin-rewards_GM406889139.pdfIn PDF document text
    • http://dottgagliardi.com/images/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
    • http://dottgagliardi.com/images/coin-master-game-hacking_GM406889139.pdfIn PDF document text
    • http://dottgagliardi.com/images/worst-client_GM479516143.pdfIn PDF document text
    • http://dottgagliardi.com/images/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
    • http://dottgagliardi.com/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://dottgagliardi.com/images/is-minecraft-free-on-computer_GM479516143.pdfIn PDF document text
    • http://dottgagliardi.com/images/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://dottgagliardi.com/images/hack-coin-master-link_GM406889139.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
stream_003_off0000495d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x495D 26604 bytes
SHA-256: db9e776c8a0fb7a1b1fd8e6f063239c0e22ad69224899aedb8f46b3c4b7d400a
font_01_sfnt_off00008632.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8632 18844 bytes
SHA-256: 227474e1735e5d7697922269f160fae01492720ac9d8b6c0a7f07948ae0c6b44

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