Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-12-2024 15:56

General

  • Target

    d1f1891332480d2aebf175fb230eb818fc1de151f8cb6e860b9822351fdc9b0b.exe

  • Size

    4.3MB

  • MD5

    2c719f77b7093d405c076ea8e1cecb89

  • SHA1

    ff8da0285514de691aa3b14f51b0224a9363054f

  • SHA256

    d1f1891332480d2aebf175fb230eb818fc1de151f8cb6e860b9822351fdc9b0b

  • SHA512

    2da4a1060b0d7242cd5cc673aee55502e2424a657d68d0971ceb5be2d496cb4c817ccd00800bc66ea37c9df6f587f211f1dbef3d6487d20e53bdeaf782f261a2

  • SSDEEP

    98304:hNPJZxwI+lziiNknS9V7Myj6vaoBAPS/+7NmyX4905qqomi:hNPP+ImzDNkSH7cCoCPS/juVi

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\d1f1891332480d2aebf175fb230eb818fc1de151f8cb6e860b9822351fdc9b0b.exe
    "C:\Users\Admin\AppData\Local\Temp\d1f1891332480d2aebf175fb230eb818fc1de151f8cb6e860b9822351fdc9b0b.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:64
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 64 -s 1132
      2⤵
      • Program crash
      PID:1064
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 196 -p 64 -ip 64
    1⤵
      PID:3460

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/64-0-0x0000000000040000-0x0000000000C36000-memory.dmp

      Filesize

      12.0MB

    • memory/64-1-0x0000000077584000-0x0000000077586000-memory.dmp

      Filesize

      8KB

    • memory/64-2-0x0000000000041000-0x00000000002C5000-memory.dmp

      Filesize

      2.5MB

    • memory/64-3-0x0000000000040000-0x0000000000C36000-memory.dmp

      Filesize

      12.0MB

    • memory/64-4-0x0000000000040000-0x0000000000C36000-memory.dmp

      Filesize

      12.0MB

    • memory/64-5-0x0000000000040000-0x0000000000C36000-memory.dmp

      Filesize

      12.0MB

    • memory/64-6-0x0000000000040000-0x0000000000C36000-memory.dmp

      Filesize

      12.0MB

    • memory/64-7-0x0000000000040000-0x0000000000C36000-memory.dmp

      Filesize

      12.0MB

    • memory/64-8-0x0000000000040000-0x0000000000C36000-memory.dmp

      Filesize

      12.0MB

    • memory/64-9-0x0000000000040000-0x0000000000C36000-memory.dmp

      Filesize

      12.0MB

    • memory/64-10-0x0000000000040000-0x0000000000C36000-memory.dmp

      Filesize

      12.0MB

    • memory/64-11-0x0000000000040000-0x0000000000C36000-memory.dmp

      Filesize

      12.0MB

    • memory/64-12-0x0000000000040000-0x0000000000C36000-memory.dmp

      Filesize

      12.0MB

    • memory/64-13-0x0000000000040000-0x0000000000C36000-memory.dmp

      Filesize

      12.0MB

    • memory/64-14-0x0000000000040000-0x0000000000C36000-memory.dmp

      Filesize

      12.0MB

    • memory/64-15-0x0000000000040000-0x0000000000C36000-memory.dmp

      Filesize

      12.0MB

    • memory/64-16-0x0000000000040000-0x0000000000C36000-memory.dmp

      Filesize

      12.0MB