PDF static analysis report

Static analysis result for SHA-256 f4053fa957ac4833…

SUSPICIOUS

PDF

42.4 KB Created: 2021-05-19 02:17:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: d105654a810b73f1882f343561bfe16b SHA-1: 1ffcd1dc7f33275a7dd5e8709f3117b83d99192c SHA-256: f4053fa957ac48337a26dcb73dacd38cf7bc49b48b81338556639078d6984a9e
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains an embedded URL and multiple other URLs pointing to sites offering game cheats and hacks, strongly suggesting a lure for users to download malicious content. The ML classifier also flagged this PDF as malicious with high confidence. The presence of a download button heuristic further supports the malicious intent.

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-codes-game-hack PDF link annotation
    • https://jinghuaeye.com.tw/upload/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://jinghuaeye.com.tw/upload/files/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://jinghuaeye.com.tw/upload/files/coin-master-free-spins-and-coins-today_GM406889139.pdfIn PDF document text
    • https://jinghuaeye.com.tw/upload/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://jinghuaeye.com.tw/upload/files/hack-robux_GM431946152.pdfIn PDF document text
    • https://jinghuaeye.com.tw/upload/files/coin-master-free-spins-apple_GM406889139.pdfIn PDF document text
    • https://jinghuaeye.com.tw/upload/files/hack-coin-master-for-android_GM406889139.pdfIn PDF document text
    • https://jinghuaeye.com.tw/upload/files/minecraft-handbook_GM479516143.pdfIn PDF document text
    • https://jinghuaeye.com.tw/upload/files/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • https://jinghuaeye.com.tw/upload/files/coin-master-free-spins-activegamer_GM406889139.pdfIn PDF document text
    • https://jinghuaeye.com.tw/upload/files/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • https://jinghuaeye.com.tw/upload/files/get-free-spins-on-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • https://jinghuaeye.com.tw/upload/files/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://jinghuaeye.com.tw/upload/files/coin-master_GM406889139.pdfIn PDF document text
    • https://jinghuaeye.com.tw/upload/files/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://jinghuaeye.com.tw/upload/files/free-roblox-shirt-templates_GM431946152.pdfIn PDF document text
    • https://jinghuaeye.com.tw/upload/files/is-minecraft-java-free_GM479516143.pdfIn PDF document text
    • https://jinghuaeye.com.tw/upload/files/roblox-rape_GM431946152.pdfIn PDF document text
    • https://jinghuaeye.com.tw/upload/files/spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://jinghuaeye.com.tw/upload/files/roblox-top_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_off00004b39.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B39 24932 bytes
SHA-256: a61e8d4af223ca1d08b6695daaec550975bbdcf657e12195fa87cb1d07beb84a
font_01_sfnt_off000084be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84BE 17884 bytes
SHA-256: dce98ab1a9f6331dfaabbdd57dacdba92c66b57249d10e9c2a1df39138c2a47b