Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7d651094e282ad0…

MALICIOUS

PDF

42.9 KB Created: 2021-05-12 03:06:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2b90aeb1eeac22d2cc430027110a2921 SHA-1: 63a30c886cc6c3b902dd0dcd1f281f4a8771ce41 SHA-256: f7d651094e282ad027eebdfde0aaa03c9422999b494b84a49d2be88914942af7
82 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA lure, encouraging users to click a link to download a game hack. The embedded URL, https://netcdn.xyz/app/406889139/coin-master-daily-spin-free-game-hack, likely leads to a malicious site. The ML classifier strongly indicates maliciousness, supporting the attack pattern of social engineering via a fake verification prompt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/coin-master-daily-spin-free-game-hack
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/how-to-download-minecraft-for-free-on-windows_GM479516143.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/how-to-get-gold-cards-on-coin-master-hack_GM406889139.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/free-robux-without-offers_GM431946152.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/free-dominus-roblox_GM431946152.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/free-robux-obby_GM431946152.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/how-do-you-get-roblox-for-free_GM431946152.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/minecraft-bedrock-edition-download-pc-free_GM479516143.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/minecraft-free-download-android-apk_GM479516143.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/www-roblox-robux_GM431946152.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/free-coin-master-spins-link-download_GM406889139.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/coin-master-game-for-pc-free-download_GM406889139.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/coin-master-el-tiger-card-free_GM406889139.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/actual-free-robux_GM431946152.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/free-robux-that-actually-works-2021_GM431946152.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/coin-master-free-spins-and-coins-2021_GM406889139.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/is-minecraft-free_GM479516143.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/minecraft-bedrock-free-server-hosting_GM479516143.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/free-limiteds-roblox_GM431946152.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/roblox-com-redeem_GM431946152.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/free-coins-on-coin-master-without-verification_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d2d.bin
8489241fe6488923582daf3056c5f4a809b20f87c16ef23f92890991a1ea283a		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D2D 24684 bytes
font_01_sfnt_off00008554.bin
213ea0fed5678e19eff32fcc5d46e69a4f1b73f67043b57a178cf12547108d4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8554 18308 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.