Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd3879b78ddc9ded…

MALICIOUS

PDF

42.6 KB Created: 2021-05-11 23:08:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2fc7e4c3cd4f89b7d3967fa2ef7ad1d1 SHA-1: ed407652d1c86b6fc30fdfb055e71c88224f12db SHA-256: fd3879b78ddc9dedfb0207dca93218f2ae64dd0fc2b58cbb61be68112e7f4d1c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple links to known malicious redirectors, masquerading as free game hacks and generators. The primary lure URL is https://netcdn.xyz/app/479516143/minecraft-bedrock-edition-free-game-hack, which is part of a network of malicious infrastructure. The document's structure and embedded links suggest an attempt to trick users into visiting malicious sites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/479516143/minecraft-bedrock-edition-free-game-hack In PDF document text
    • http://www.zamboniporte.it/images/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • http://www.zamboniporte.it/images/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://www.zamboniporte.it/images/best-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.zamboniporte.it/images/get-robux-com_GM431946152.pdfIn PDF document text
    • http://www.zamboniporte.it/images/coin-master-hack-spin-generator-tool_GM406889139.pdfIn PDF document text
    • http://www.zamboniporte.it/images/coin-master-apk-hack-358_GM406889139.pdfIn PDF document text
    • http://www.zamboniporte.it/images/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://www.zamboniporte.it/images/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://www.zamboniporte.it/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.zamboniporte.it/images/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://www.zamboniporte.it/images/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://www.zamboniporte.it/images/free-free-robux_GM431946152.pdfIn PDF document text
    • http://www.zamboniporte.it/images/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://www.zamboniporte.it/images/free-roblox-clothes-codes_GM431946152.pdfIn PDF document text
    • http://www.zamboniporte.it/images/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.zamboniporte.it/images/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://www.zamboniporte.it/images/how-to-get-free-coins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.zamboniporte.it/images/synapse-roblox-free_GM431946152.pdfIn PDF document text
    • http://www.zamboniporte.it/images/haktutsin-2021-09-coinmaster50freespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • http://www.zamboniporte.it/images/instagram-free-coin-master-spins_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
font_00_sfnt_off00004b4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B4A 25052 bytes
SHA-256: 56a9b0c9d18ca1b0760798ede56e3fc1db91f36302f3f064923ea918fbafaa5d
font_01_sfnt_off00008437.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8437 18268 bytes
SHA-256: 0b29718dce26c4d1fb8eff562362f22d55d4276ac23c5c88aa1b07f7376859fd

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