PDF static analysis report

Static analysis result for SHA-256 bd83268f72858576…

SUSPICIOUS

PDF

43.1 KB Created: 2021-05-15 00:31:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 330f161509d79161c0ca408dcf7c90e7 SHA-1: ae07a72dee5f974d05eb2763fbea04b3c2118852 SHA-256: bd83268f7285857686c699f019a9dd728b9fc5a115655a802f228a93220ead34
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains an embedded URI that points to a download for a 'Coin Master Hack'. The ML classifier strongly flagged this PDF as malicious, and the presence of a download button lure reinforces the malicious intent. The document likely serves as a lure to trick users into downloading a second-stage payload.

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/406889139/descargar-hack-coin-master-game-hack PDF link annotation
    • https://www.twpuc.com.tw/upload/files/minecraft-free-download-apk-softonic_GM479516143.pdfIn PDF document text
    • https://www.twpuc.com.tw/upload/files/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.twpuc.com.tw/upload/files/is-roblox-free-on-pc_GM431946152.pdfIn PDF document text
    • https://www.twpuc.com.tw/upload/files/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • https://www.twpuc.com.tw/upload/files/how-to-change-your-name-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.twpuc.com.tw/upload/files/minecraft-free-online-games_GM479516143.pdfIn PDF document text
    • https://www.twpuc.com.tw/upload/files/how-to-get-minecraft-on-chromebook-for-free_GM479516143.pdfIn PDF document text
    • https://www.twpuc.com.tw/upload/files/minecraft-texture-packs-free-download_GM479516143.pdfIn PDF document text
    • https://www.twpuc.com.tw/upload/files/free-coin-master-spins-link-facebook_GM406889139.pdfIn PDF document text
    • https://www.twpuc.com.tw/upload/files/minecraft-ps4-code-free_GM479516143.pdfIn PDF document text
    • https://www.twpuc.com.tw/upload/files/free-cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.twpuc.com.tw/upload/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.twpuc.com.tw/upload/files/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.twpuc.com.tw/upload/files/daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.twpuc.com.tw/upload/files/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • https://www.twpuc.com.tw/upload/files/how-to-get-2021-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.twpuc.com.tw/upload/files/rbx-free_GM431946152.pdfIn PDF document text
    • https://www.twpuc.com.tw/upload/files/how-do-you-get-free-roebucks_GM431946152.pdfIn PDF document text
    • https://www.twpuc.com.tw/upload/files/free-roblox-gift-card-codes_GM431946152.pdfIn PDF document text
    • https://www.twpuc.com.tw/upload/files/how-to-get-minecraft-windows-10-for-free-with-java_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_off00004a4c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A4C 25904 bytes
SHA-256: 19ba36ebfadcfa251dae8586eadad8089d8294e5d5281e8f9d30717bd8a23ec9
font_01_sfnt_off00008646.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8646 18172 bytes
SHA-256: 8e05f9f32595a35b5a9f3361bee3fb11860dee14ab597e5c6e5f24d8016f84fd