PDF static analysis report

Static analysis result for SHA-256 53325b4b5d1f0fd1…

SUSPICIOUS

PDF

43.0 KB Created: 2021-05-14 21:03:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 2351b1169e66da8e7addd0c632b695b8 SHA-1: 4fa514485fabb8a1a3aec4de8491182d24edd382 SHA-256: 53325b4b5d1f0fd130643069854006f1fcb5a1401e5f3e524f2ba7c6e2b1440e
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a heuristic firing for an external URI, all pointing to sites offering game-related hacks or surveys. The ML classifier also flagged this PDF as malicious with high confidence. The presence of these elements suggests the document is designed to trick users into downloading potentially malicious files or visiting phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-survey-game-hack PDF link annotation
    • http://foo.com.tw/files/robux-offer-wall_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/minecraft-free-minecraft_GM479516143.pdfIn PDF document text
    • http://foo.com.tw/files/coin-master-hack-tuts_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/how-to-get-more-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/coin-master-gold-cards-hack-2021_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/coin-monster_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/master-game_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/free-spin-app-coin-master_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/prison-life-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/minecraft-online-free-download_GM479516143.pdfIn PDF document text
    • http://foo.com.tw/files/free-minecraft-java-edition-codes_GM479516143.pdfIn PDF document text
    • http://foo.com.tw/files/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/free-cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/hack-avatar_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/coin-master-mod-apk-unlimited-spin-download-free-full-version_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/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
font_00_sfnt_off000048f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48F6 26764 bytes
SHA-256: 2a4c0aac396b37dbfe24a87c9448ad937f504b3759e003570bee6434f79c8628
font_01_sfnt_off00008600.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8600 18144 bytes
SHA-256: 6fd5616ad4ce0c30eb6456aaab9f1a40378a031fa4650db50c22e26f1c4f3de9