Analysis

  • max time kernel
    95s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/12/2024, 03:23

General

  • Target

    c98d19866c460e57acf2ab7849702b142ad2c40016a503a1b9430a8dadc3a7e0.exe

  • Size

    4.3MB

  • MD5

    456cf6270ab07ea9b236b47f6cd0f1af

  • SHA1

    7a4b825f25da671dfc5b4d28f42d8fca1ada5962

  • SHA256

    c98d19866c460e57acf2ab7849702b142ad2c40016a503a1b9430a8dadc3a7e0

  • SHA512

    9d440a02373119bb537d1f3bedde0727b91f908c647b9cea386999e78c4ceb6e09fd8a23fddadf5c56f70005477aa5aaa881106b51f019d8bfb18ba085578cb6

  • SSDEEP

    98304:qjdWYL7xmGpXdYK5x2OC1jXsQTL7lgSv9R8NfWmNRogTBXxdcC9Ck6Ps9G4:qXL7xmGRdYEU1jsmL7lHv9RMfWMRV9DI

Malware Config

Extracted

Family

cryptbot

Signatures

  • CryptBot

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

  • Cryptbot family
  • Enumerates VirtualBox registry keys 2 TTPs 1 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Checks installed software on the system 1 TTPs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c98d19866c460e57acf2ab7849702b142ad2c40016a503a1b9430a8dadc3a7e0.exe
    "C:\Users\Admin\AppData\Local\Temp\c98d19866c460e57acf2ab7849702b142ad2c40016a503a1b9430a8dadc3a7e0.exe"
    1⤵
    • Enumerates VirtualBox registry keys
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    PID:3476
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3476 -s 1136
      2⤵
      • Program crash
      PID:2040
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3476 -ip 3476
    1⤵
      PID:796

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/3476-0-0x0000000000320000-0x0000000000FF9000-memory.dmp

            Filesize

            12.8MB

          • memory/3476-1-0x00000000776A4000-0x00000000776A6000-memory.dmp

            Filesize

            8KB

          • memory/3476-2-0x0000000000321000-0x00000000005A5000-memory.dmp

            Filesize

            2.5MB

          • memory/3476-3-0x0000000000320000-0x0000000000FF9000-memory.dmp

            Filesize

            12.8MB

          • memory/3476-4-0x0000000000320000-0x0000000000FF9000-memory.dmp

            Filesize

            12.8MB

          • memory/3476-5-0x0000000000320000-0x0000000000FF9000-memory.dmp

            Filesize

            12.8MB

          • memory/3476-6-0x0000000000320000-0x0000000000FF9000-memory.dmp

            Filesize

            12.8MB

          • memory/3476-7-0x0000000000320000-0x0000000000FF9000-memory.dmp

            Filesize

            12.8MB

          • memory/3476-8-0x0000000000320000-0x0000000000FF9000-memory.dmp

            Filesize

            12.8MB

          • memory/3476-9-0x0000000000320000-0x0000000000FF9000-memory.dmp

            Filesize

            12.8MB

          • memory/3476-10-0x0000000000320000-0x0000000000FF9000-memory.dmp

            Filesize

            12.8MB

          • memory/3476-11-0x0000000000320000-0x0000000000FF9000-memory.dmp

            Filesize

            12.8MB

          • memory/3476-12-0x0000000000320000-0x0000000000FF9000-memory.dmp

            Filesize

            12.8MB

          • memory/3476-13-0x0000000000320000-0x0000000000FF9000-memory.dmp

            Filesize

            12.8MB

          • memory/3476-14-0x0000000000320000-0x0000000000FF9000-memory.dmp

            Filesize

            12.8MB

          • memory/3476-15-0x0000000000320000-0x0000000000FF9000-memory.dmp

            Filesize

            12.8MB

          • memory/3476-16-0x0000000000320000-0x0000000000FF9000-memory.dmp

            Filesize

            12.8MB

          • memory/3476-17-0x0000000000320000-0x0000000000FF9000-memory.dmp

            Filesize

            12.8MB