Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9dcf782268e783e…

MALICIOUS

PDF

45.0 KB Created: 2021-05-19 20:53:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2e2a5177e057d97fd757f2ed5dd3294e SHA-1: e4b78cb2dbe1cb8cb317649f7096a3ad3ed271dd SHA-256: d9dcf782268e783eb296f2900caac88fb1cc1d61680b18862a41bcb7f08afb12
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure, designed to trick users into interacting with malicious links. The embedded URL and numerous other URLs point to sites offering game hacks or cheats, which are common pretexts for malware distribution. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/1094591345/pokemon-go-free-kanto-tour-game-hack
    • http://chocolats-boccardi-carcassonne.com/images/can-i-hack-pubg-mobile-uc_GM1330123889.pdf
    • http://chocolats-boccardi-carcassonne.com/images/minecraft-redeem-code-free-2021_GM479516143.pdf
    • http://chocolats-boccardi-carcassonne.com/images/coin-master-daily-free-spin-app_GM406889139.pdf
    • http://chocolats-boccardi-carcassonne.com/images/coin-master-hack-2021_GM406889139.pdf
    • http://chocolats-boccardi-carcassonne.com/images/games-that-give-free-robux_GM431946152.pdf
    • http://chocolats-boccardi-carcassonne.com/images/minecraft-pe-hacks_GM479516143.pdf
    • http://chocolats-boccardi-carcassonne.com/images/coin-master-free-spins-hack-download_GM406889139.pdf
    • http://chocolats-boccardi-carcassonne.com/images/free-robux-no-offers_GM431946152.pdf
    • http://chocolats-boccardi-carcassonne.com/images/add-robux_GM431946152.pdf
    • http://chocolats-boccardi-carcassonne.com/images/minecraft-diamond-finder-hack_GM479516143.pdf
    • http://chocolats-boccardi-carcassonne.com/images/free-spins-on-coin-master-hack_GM406889139.pdf
    • http://chocolats-boccardi-carcassonne.com/images/free-robux-no-verification-required_GM431946152.pdf
    • http://chocolats-boccardi-carcassonne.com/images/free-robux-promo-codes-2021_GM431946152.pdf
    • http://chocolats-boccardi-carcassonne.com/images/coin-master-free-spins-link-october-2021_GM406889139.pdf
    • http://chocolats-boccardi-carcassonne.com/images/buy-robux-free_GM431946152.pdf
    • http://chocolats-boccardi-carcassonne.com/images/latest-coin-master-free-spins-link_GM406889139.pdf
    • http://chocolats-boccardi-carcassonne.com/images/coin-master-free-spins-and-coins-2021_GM406889139.pdf
    • http://chocolats-boccardi-carcassonne.com/images/moonactive-coin-master-free-spins_GM406889139.pdf
    • http://chocolats-boccardi-carcassonne.com/images/change-roblox-username-free_GM431946152.pdf
    • http://chocolats-boccardi-carcassonne.com/images/free-robux-apk_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004acc.bin
a57c74707618d016944dae0e7c43c90ab9fac79d3f0e7f6f41f1172cb13581f0		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4ACC 24060 bytes
font_01_sfnt_off0000818e.bin
97acb3dfe99d8aca5d6f8db8393b488ed98b2263432579da10c481344d87daf1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x818E 3436 bytes
font_02_sfnt_off00008da6.bin
420b6ff7e8d2877fa30d1d2796df5b4502b24c75bca4e76d5d0974007df3d8a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DA6 18312 bytes

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