PDF static analysis report

Static analysis result for SHA-256 841b852b907b78c8…

SUSPICIOUS

PDF

42.1 KB Created: 2021-05-18 01:00:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 2d05df040a83c57ff939bb176c51a7c4 SHA-1: 10ba88d8006b267bd55081bc637c86834077a4f8 SHA-256: 841b852b907b78c8c3dbdd5a739966f0e611192aa957e7841d8c68bc32215be6
42 Risk Score

Malware Insights

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

The PDF document contains multiple URLs pointing to external resources, likely intended to trick the user into downloading a payload. The ML classifier strongly flagged this PDF as malicious, and the presence of a "download button" heuristic further supports a malicious intent. The document body and embedded URLs suggest a lure for game-related cheats or hacks, a common social engineering tactic.

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/how-to-get-free-coins-on-coin-master-iphone-game-hack PDF link annotation
    • https://cleansui-home.com.tw/image/data/files/best-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/coin-master-hack-game-download-ios_GM406889139.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/coin-master-hack-using-cheat-engine_GM406889139.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/hack-robux_GM431946152.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/op-rewards-robux_GM431946152.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/free-spins-coin-master-without-survey_GM406889139.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/spin-and-coin_GM406889139.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/mcpe-master-unlimited-coins-hack-apk_GM406889139.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • https://cleansui-home.com.tw/image/data/files/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b48.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B48 24200 bytes
SHA-256: da1ae07aace368c1e2204538146537df3c8e7628b6dfc18c5ce0ec6fdf1dcdfb
font_01_sfnt_off00008267.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8267 18216 bytes
SHA-256: 52b69b82d5fd4984e757fd003bc67bfee1f038f463e2c352f44a6d97427109ad

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