PDF static analysis report

Static analysis result for SHA-256 631edc596db45a03…

SUSPICIOUS

PDF

34.5 KB Created: 2021-06-28 00:27:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 02f93d80274eb13f4b255d50bac17eb7 SHA-1: 3491b07ce9d152a6828c9e36e74cebf5ee3bebae SHA-256: 631edc596db45a03f0ad15de0ef58d489ebeb94cb99df256c8222c267c59ba95
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs, including one pointing to 'netcdn.co', which are likely intended to lead the user to download malicious content or visit phishing sites. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and a visual download button heuristic further supports a malicious intent. No scripts were extracted from this sample, but the overall structure and embedded links suggest a downloader or phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/are-there-any-free-swords-in-roblox-game-hack PDF link annotation
    • http://www.businessgalaxy.lk/files/files/roblox-how-to-get-free-clothes_GM431946152.pdfIn PDF document text
    • http://www.businessgalaxy.lk/files/files/tiktok-free-view-iphone-6s_GM835599320.pdfIn PDF document text
    • http://www.businessgalaxy.lk/files/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.businessgalaxy.lk/files/files/10-robux_GM431946152.pdfIn PDF document text
    • http://www.businessgalaxy.lk/files/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://www.businessgalaxy.lk/files/files/wurst-client_GM479516143.pdfIn PDF document text
    • http://www.businessgalaxy.lk/files/files/coin-master-hack-2021-without-verification_GM406889139.pdfIn PDF document text
    • http://www.businessgalaxy.lk/files/files/free-robux-obby-easy_GM431946152.pdfIn PDF document text
    • http://www.businessgalaxy.lk/files/files/coin-master-free-spins-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://www.businessgalaxy.lk/files/files/how-to-play-minecraft-online-for-free_GM479516143.pdfIn PDF document text
    • http://www.businessgalaxy.lk/files/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.businessgalaxy.lk/files/files/free-robux-tutorial-2021-be-rich_GM431946152.pdfIn PDF document text
    • http://www.businessgalaxy.lk/files/files/roblox-avatar-girl_GM431946152.pdfIn PDF document text
    • http://www.businessgalaxy.lk/files/files/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.businessgalaxy.lk/files/files/wurst_GM479516143.pdfIn PDF document text
    • http://www.businessgalaxy.lk/files/files/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.businessgalaxy.lk/files/files/free-pe_GM479516143.pdfIn PDF document text
    • http://www.businessgalaxy.lk/files/files/coin-master-free-cards-and-spin-link_GM406889139.pdfIn PDF document text
    • http://www.businessgalaxy.lk/files/files/how-to-get-free-chothes-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.businessgalaxy.lk/files/files/free-roblox-hack-scripts_GM431946152.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
font_00_sfnt_off00003011.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3011 21996 bytes
SHA-256: 166def27711cca72de77bd19f3a77524004df01331905b2af3d9ccd5a5614f43
font_01_sfnt_off000060cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60CD 19336 bytes
SHA-256: efafeb94d21a786bd2f26fa00d4fa0b7eba18d197644f24929b9e3a31e020137