Malicious PDF — malware analysis report

Static analysis result for SHA-256 05d8c6a2cfb5e0b6…

MALICIOUS

PDF

33.9 KB Created: 2021-07-20 06:51:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 64c55fbe15afd584f5927b4198529d56 SHA-1: 94ed5d24062e7c5c1a62f64c033d6597f91a391d SHA-256: 05d8c6a2cfb5e0b64148969c118af784606a1884978f2f39efb48eca1dcf6691
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and text promoting a "Robloxmatch.com Free Robux" generator, including a "CLICK HERE TO ACCESS ROBUX GENERATOR" call to action. The primary malicious URL, http://netcdn.tw/app/431946152/robloxmatch.com-free-robux-game-hack, is flagged as a redirector to malicious infrastructure. The presence of a visual download button lure further supports the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

Heuristics 3

  • 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.tw/app/431946152/robloxmatch.com-free-robux-game-hack In PDF document text
    • https://www.sensationboats.com/images/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • https://www.sensationboats.com/images/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.sensationboats.com/images/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • https://www.sensationboats.com/images/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • https://www.sensationboats.com/images/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
    • https://www.sensationboats.com/images/give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://www.sensationboats.com/images/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://www.sensationboats.com/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.sensationboats.com/images/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • https://www.sensationboats.com/images/roblox-fun-com-free-robux_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_off00002cdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CDF 22936 bytes
SHA-256: b3716449a729518e9450f9712aa6f7e16341a56a3c05d82ded63371b78877c24
font_01_sfnt_off0000606e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x606E 19100 bytes
SHA-256: 320d93f3b8ec418dafe56a0ab761e37d2656ce3fae295c57a773b93fd475c835

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