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General

  • Target

    8520d7d21039b7bbd73d0ccc72d27da6aae62dd88bf2e759046baca8c0fbd452

  • Size

    3.8MB

  • Sample

    250217-be9flsvmhv

  • MD5

    b80fe721ecebeaaf99eb4fa7485644a7

  • SHA1

    18b6d820d5636f68f1e4b788db8500f8553629c2

  • SHA256

    8520d7d21039b7bbd73d0ccc72d27da6aae62dd88bf2e759046baca8c0fbd452

  • SHA512

    fc46e8bf1f5721dd3feb5f0703272bb66006aa1dbec3fcfa3aa58cdcb2324399e2bbb385d02041cdb0e5a2d5e492805a6a4924c8db8132b4255d03cd07c97f27

  • SSDEEP

    98304:Zs2we8EipV6574GYxThZN+5o4ZQGhNvYH3:wEipS4Ge7N+5m

Malware Config

Extracted

Family

cryptbot

C2

http://home.elvncc11vs.top/XBsnAZXLtQYcAoRtYQZi18

Targets

    • Target

      8520d7d21039b7bbd73d0ccc72d27da6aae62dd88bf2e759046baca8c0fbd452

    • Size

      3.8MB

    • MD5

      b80fe721ecebeaaf99eb4fa7485644a7

    • SHA1

      18b6d820d5636f68f1e4b788db8500f8553629c2

    • SHA256

      8520d7d21039b7bbd73d0ccc72d27da6aae62dd88bf2e759046baca8c0fbd452

    • SHA512

      fc46e8bf1f5721dd3feb5f0703272bb66006aa1dbec3fcfa3aa58cdcb2324399e2bbb385d02041cdb0e5a2d5e492805a6a4924c8db8132b4255d03cd07c97f27

    • SSDEEP

      98304:Zs2we8EipV6574GYxThZN+5o4ZQGhNvYH3:wEipS4Ge7N+5m

    • CryptBot

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Cryptbot family

    • Enumerates VirtualBox registry keys

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Downloads MZ/PE file

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks