PDF static analysis report

Static analysis result for SHA-256 fb9bbae10c76d904…

SUSPICIOUS

PDF

44.1 KB Created: 2021-06-03 09:01:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: a71c593da4eb8383a3dc7e511db11aff SHA-1: 4cd604f4fce85ee84e25885f4a373d1f53d3c6d1 SHA-256: fb9bbae10c76d9047bb8efb1856f93d266c9c85f6493aa7d92b3df518c45ee63
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded URLs, including one pointing to a game hack download. The ML classifier strongly flagged this PDF as malicious, and the presence of download-related text further supports a malicious intent. The document likely serves as a lure to trick users into downloading and executing a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 3

  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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.online/app/406889139/coin-master-mod-free-download-game-hack PDF link annotation
    • https://www.summerland.com.tw/upload/files/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • https://www.summerland.com.tw/upload/files/how-to-get-minecraft-java-free_GM479516143.pdfIn PDF document text
    • https://www.summerland.com.tw/upload/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.summerland.com.tw/upload/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.summerland.com.tw/upload/files/how-can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.summerland.com.tw/upload/files/coin-master-free-spins-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.summerland.com.tw/upload/files/coin-master-spin-hack-pc_GM406889139.pdfIn PDF document text
    • https://www.summerland.com.tw/upload/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • https://www.summerland.com.tw/upload/files/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://www.summerland.com.tw/upload/files/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://www.summerland.com.tw/upload/files/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.summerland.com.tw/upload/files/links-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.summerland.com.tw/upload/files/can-you-earn-robux_GM431946152.pdfIn PDF document text
    • https://www.summerland.com.tw/upload/files/20-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.summerland.com.tw/upload/files/freecoins_GM406889139.pdfIn PDF document text
    • https://www.summerland.com.tw/upload/files/coin-master-free-spins-app-android_GM406889139.pdfIn PDF document text
    • https://www.summerland.com.tw/upload/files/spin-link_GM406889139.pdfIn PDF document text
    • https://www.summerland.com.tw/upload/files/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • https://www.summerland.com.tw/upload/files/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.summerland.com.tw/upload/files/2021-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_004_off00005155.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5155 24684 bytes
SHA-256: 82734bdc90f0ea483b4a9e3be2f71f7f72658c67fdf38fd35164aba3ae0c8b2a
font_01_sfnt_off000089dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89DD 18292 bytes
SHA-256: df3d00f786f79046a7b02f352eafccbddd11185eddbe203132848a1a76bb74a4