Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c1e3633ba48a53b…

MALICIOUS

PDF

45.5 KB Created: 2021-05-22 14:12:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e068b01a27c38e80f72ce434fae26302 SHA-1: e5cde272689a2c4c3dd64846e3c90d0fc0c35190 SHA-256: 8c1e3633ba48a53b51022534dea6555c0d035d3f1c41c2a20db8bc58377e273d
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links and text that mimic download lures for game cheats and in-game currency, specifically mentioning "Minecraft Hacked Client" and "Robux". The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that the primary URL leads to known malicious infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to trick the user into downloading a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7826

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 https://netcdn.xyz/app/479516143/minecraft-hacked-client-1.12-2-game-hack In PDF document text
    • http://rafaelmontesinos.com/images/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://rafaelmontesinos.com/images/robux-rewards_GM431946152.pdfIn PDF document text
    • http://rafaelmontesinos.com/images/minecraft-build-hacks_GM479516143.pdfIn PDF document text
    • http://rafaelmontesinos.com/images/how-to-change-roblox-username-for-free_GM431946152.pdfIn PDF document text
    • http://rafaelmontesinos.com/images/open-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000033a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33A9 23608 bytes
SHA-256: f2b4933941f4addfb673421fdad1a2965ddea5f992432cd4170d9fdb6d922174
font_01_sfnt_off000068ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68EA 7936 bytes
SHA-256: 218d53b68bdddb064f6fba4be822d5b3725ed1cef1a3b42796a8dd99c4a62f4e
font_02_sfnt_off00008214.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8214 4232 bytes
SHA-256: ab6320ab342704d2c5943abfba82ed4837bf2da871c91621741fd4cfd15c6ed5
font_03_sfnt_off000090a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90A1 18280 bytes
SHA-256: 63e0cf813ec8bc820137db86bcb3617ef7dd45146c6ac783cccfa5d71b9aece7

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