PDF static analysis report

Static analysis result for SHA-256 a3f1a4ca36f122df…

SUSPICIOUS

PDF

41.9 KB Created: 2021-05-12 19:03:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 7c7ce17a3bfad08e002f480ddab11913 SHA-1: 3c269f49c2f4997074b70ca81993edfae802c9b8 SHA-256: a3f1a4ca36f122dfc296425510a23a2a2d64b7f23bebf0a2a00d5194ea7d0093
42 Risk Score

Malware Insights

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

The PDF document contains embedded links and text that promote downloading a 'Coin Master Free Spin Link App'. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and a visual download button lure further support a malicious intent. The primary IOC is the URL used to direct users to the purported application.

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/coin-master-free-spin-link-app-game-hack PDF link annotation
    • https://vieclamjapan.com/upload/files/coin-master-apk-hack-2021-ios_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/minecraft-free-app_GM479516143.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-robux-images_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-gold-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/minecraft-free-download-laptop_GM479516143.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/coin-master-free-gift-cards_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/card-hack-in-coin-master_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/xray-mod-minecraft-114_GM479516143.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/how-to-send-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-robux-codes-2021-real_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
stream_003_off00004a6d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A6D 24296 bytes
SHA-256: 636b0d28314684a8770ffb490001c9619932d88c27bc15a6a2c5d2e2ed54ce48
font_01_sfnt_off00008224.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8224 18056 bytes
SHA-256: 82bd5e5fc9f9c8e10db102fb3f3c15aafc022ab197dd07e70821ea88e25dcd6f