Malicious PDF — malware analysis report

Static analysis result for SHA-256 01163370ced4e22c…

MALICIOUS

PDF

43.0 KB Created: 2021-05-13 10:39:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7ea4ca47ed20bd9dbc0f4c0fef4d653a SHA-1: 62af59e4e5d38f69b0b4eff9d9573ba85fd6798e SHA-256: 01163370ced4e22c831f4f81fef1c3c68eb8cd8e67db971dc86a509f7f1f5f1f
100 Risk Score

Malware Insights

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

The PDF contains embedded URLs and a visual download button lure, directing users to potentially malicious content related to game hacks. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' specifically flags a URL pointing to known malicious infrastructure, indicating an attempt to deliver a second-stage payload. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-hacks-1.15-2-game-hack In PDF document text
    • http://ralf-gryga.de/images/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://ralf-gryga.de/images/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • http://ralf-gryga.de/images/free-robux-please_GM431946152.pdfIn PDF document text
    • http://ralf-gryga.de/images/free-script-executor-roblox_GM431946152.pdfIn PDF document text
    • http://ralf-gryga.de/images/robux-fun-hack_GM431946152.pdfIn PDF document text
    • http://ralf-gryga.de/images/spins-coin-master_GM406889139.pdfIn PDF document text
    • http://ralf-gryga.de/images/coin-master-35-16-hack-apk_GM406889139.pdfIn PDF document text
    • http://ralf-gryga.de/images/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
    • http://ralf-gryga.de/images/wurst-hacks_GM479516143.pdfIn PDF document text
    • http://ralf-gryga.de/images/how-can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://ralf-gryga.de/images/free-minecraft-domain_GM479516143.pdfIn PDF document text
    • http://ralf-gryga.de/images/coin-master-free-online_GM406889139.pdfIn PDF document text
    • http://ralf-gryga.de/images/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://ralf-gryga.de/images/instagram-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://ralf-gryga.de/images/coin-master-hack-version-download-2021_GM406889139.pdfIn PDF document text
    • http://ralf-gryga.de/images/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://ralf-gryga.de/images/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • http://ralf-gryga.de/images/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://ralf-gryga.de/images/coin-master-official-website_GM406889139.pdfIn PDF document text
    • http://ralf-gryga.de/images/blogspot-free-spins-coin-master_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_off00004b59.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B59 25996 bytes
SHA-256: 4b935c16de3b40ec59b10c8df57a2bdf44ae3f0169ffc2996e1e27b1ece1990d
font_01_sfnt_off00008657.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8657 18168 bytes
SHA-256: 304447a64c9c9da34caed164523f062cdaeb71933cc5e9c334f07884a33f2f76