PDF static analysis report

Static analysis result for SHA-256 13dee34d36d78664…

SUSPICIOUS

PDF

44.4 KB Created: 2021-05-17 14:11:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 787245bca6476281d0c210f7b76c5190 SHA-1: 506867f49544a088351f9f9eb086a8ffaefb7cc8 SHA-256: 13dee34d36d78664ce23ca1d7321df968d5a7a5e1f28db617106f1d0bc72140c
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains embedded URLs and a visual call-to-action, suggesting a social engineering lure. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs indicates an attempt to redirect the user to a malicious site. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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.xyz/app/431946152/robux-game-game-hack PDF link annotation
    • http://fs4sms.com/images/hack-roblox-players_GM431946152.pdfIn PDF document text
    • http://fs4sms.com/images/freespinandcoinblogspotcom-2021-11-coinmasterfreespinandcoinlinkshtml_GM406889139.pdfIn PDF document text
    • http://fs4sms.com/images/free-roblox-animations_GM431946152.pdfIn PDF document text
    • http://fs4sms.com/images/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • http://fs4sms.com/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://fs4sms.com/images/minecraft-apk-download-free-11-055_GM479516143.pdfIn PDF document text
    • http://fs4sms.com/images/can-i-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://fs4sms.com/images/coin-master-rewards_GM406889139.pdfIn PDF document text
    • http://fs4sms.com/images/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • http://fs4sms.com/images/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://fs4sms.com/images/how-to-earn-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://fs4sms.com/images/free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://fs4sms.com/images/is-minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://fs4sms.com/images/toolbox-for-minecraft_GM479516143.pdfIn PDF document text
    • http://fs4sms.com/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://fs4sms.com/images/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://fs4sms.com/images/minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://fs4sms.com/images/hack-coin-master-apk-mod_GM406889139.pdfIn PDF document text
    • http://fs4sms.com/images/coin-master-freebies_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004802.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4802 24632 bytes
SHA-256: 2a94a2a5742988a097d3278efeb8d59dfc2361925f90f393d77d52480103405b
font_01_sfnt_off000080c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80C1 2880 bytes
SHA-256: 552e62132cae3603ce0819827e44d96a992bd06014cc5080bf3af4b2ea155b3e
font_02_sfnt_off00008a9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A9A 18340 bytes
SHA-256: c3384937c05d12942e5ee2f32f048a43efe3336dc3e7ac7a8d2adf4ff389f548