Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee84b42d729052d1…

MALICIOUS

PDF

46.1 KB Created: 2021-05-12 17:31:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ca80a3aa8d6abbdea29a2c3559517f92 SHA-1: 036c1a5ad8d9ab0e1a2fdd5e711dbe2069347bf6 SHA-256: ee84b42d729052d19b0508299d522e4d5991febdf96c1f9011a20f7ca41e0a87
82 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA or human verification prompt to trick the user into interacting with a malicious link. The embedded URL and numerous other URLs point to sites offering game-related cheats or hacks, which are common lures for malware distribution. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/daily-free-coin-and-spin-link-for-coin-master-game-hack
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/coin-master-free-spins-coins_GM406889139.pdf
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/free-robux-generator-codes_GM431946152.pdf
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/minecraft-free-apk_GM479516143.pdf
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/coin-master-hack-tool-2021_GM406889139.pdf
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/how-to-make-a-modded-minecraft-server-for-free_GM479516143.pdf
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/coin-master-daily-bonus_GM406889139.pdf
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/2021-free-spins-coin-master_GM406889139.pdf
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/how-to-hack-coin-master-ios-jailbreak_GM406889139.pdf
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/free-spins-coin-master-2021-today_GM406889139.pdf
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/coin-master-games-hack_GM406889139.pdf
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/my-robux_GM431946152.pdf
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/coin-master-hack-game-download_GM406889139.pdf
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/rbx-place-free-robux_GM431946152.pdf
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/minecraft-pe-apk-free-download_GM479516143.pdf
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/coin-master-hack-spin-generator_GM406889139.pdf
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdf
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/coin-master-daily-free-spins-haktuts_GM406889139.pdf
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/free-robux-scams_GM431946152.pdf
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/how-to-get-robux-for-free-2021_GM431946152.pdf
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/coin-master-gift-hack_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d7b.bin
f94901860a87bac6899f157e60a18c988a91234f4bc870dada4f520881253dc6		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D7B 25296 bytes
font_01_sfnt_off0000871a.bin
3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676		 pdf-font-stream PDF embedded font (sfnt) at offset 0x871A 2840 bytes
font_02_sfnt_off000090cb.bin
3777b5d13c6883454b23159e5c41cd83249453163b29f9aac7ae2dedc324f7ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90CB 18652 bytes

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