Malicious PDF — malware analysis report

Static analysis result for SHA-256 44e8650be8416222…

MALICIOUS

PDF

42.5 KB Created: 2021-05-17 11:28:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: fc6ff320c99c2b3eb6320b88959f9c74 SHA-1: f0be9c922ba953132bb7c7e3455f786387e3bdc4 SHA-256: 44e8650be8416222b7c7fb8322bd88f89d8e5a7cab154560f9454319605f482a
100 Risk Score

Malware Insights

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

The PDF document contains embedded links that redirect to known malicious infrastructure, disguised as game download pages. The ML classifier also flagged this PDF as malicious with high confidence. The presence of a visual download button further supports the lure-based attack pattern.

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-1.16-free-download-game-hack In PDF document text
    • http://xenonsvjetla.com/files/coin-master-free-spin-link-today-16-11-2021_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-spins-coin-master-without-completing-offers_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-spin-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-coins-for-coin-master-blogger_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/hackear-coin-master-sin-root_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-can-you-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-minecraft-java-edition-account_GM479516143.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/60-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-free-spin-sites_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-hack-version-download-ios_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-hack-with-facebook-login_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-key-free-spin_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_off00004a21.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A21 24952 bytes
SHA-256: 488aa0ddc229d07fa9168789bc5ff678a2c6de6befb51d5e95f4dee6ad46682a
font_01_sfnt_off000082c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82C9 18628 bytes
SHA-256: 0e8b49a0fd1b3c410e06b9d1dbb2d3e902ee20fcf98882da412ea2fefe7e2ea5