Malicious PDF — malware analysis report

Static analysis result for SHA-256 88b29e53376d8b9d…

MALICIOUS

PDF

42.0 KB Created: 2021-05-10 18:34:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d9d11c9ab0cb6084b069d4ecb3b2e64c SHA-1: 7c258b00afcb405f7bfd3ea2567ca369338b3b55 SHA-256: 88b29e53376d8b9d1ddee8de637880751ac8e52f59f31e0aeebc377ece29fd54
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to known malicious redirector infrastructure, specifically pointing to a download for a Minecraft APK. The presence of a visual download button and the ML classifier's high confidence score further support its malicious nature. The document body, though heavily obfuscated, contains references to the malicious URL, indicating an attempt to lure the user into downloading potentially harmful software.

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-apk-1.14-game-hack In PDF document text
    • https://heimatverein-oberlangen.de/images/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/coin-master-claim-spins_GM406889139.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/buy-robux-free_GM431946152.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/coin-master-game-hack-app-download_GM406889139.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/facebook-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/coin-master-spins_GM406889139.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/master-coin-hack-mod_GM406889139.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/easy-roblox-today_GM431946152.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • https://heimatverein-oberlangen.de/images/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.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_off000049b1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49B1 25292 bytes
SHA-256: 31b5a46049b2fb9ef9bbf6e6ad1dc153468ee3ac04616d1fbd3c56233c28e713
font_01_sfnt_off0000824d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x824D 18148 bytes
SHA-256: 7bdfed4e6bb9116c1e8b762c9aa300c7ad7e0d5b74d60207ce67a22ebb633bf5