Analysis

  • max time kernel
    93s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/03/2025, 03:04

General

  • Target

    cf284105b76caf1f2f775de2207e9743ca4a479924b06b0ab3a41251104953f3.exe

  • Size

    6.3MB

  • MD5

    4ae8af6fba92e19af09d19070b33c7c2

  • SHA1

    a72132f73981dcacfa2d322176121152a880ef19

  • SHA256

    cf284105b76caf1f2f775de2207e9743ca4a479924b06b0ab3a41251104953f3

  • SHA512

    a0be0da126a2f67741448303ff22a0cd0c92cd9a19ff7e9f03bceec3320eebe7ea7d31f76a52b399a1c83dd975cd3da2111258cc42dd04bb578ed70651f5fe53

  • SSDEEP

    98304:hjQBHwSW6RBfuVbx3/4pIrZC5EimIfFUsidrV2XJsNf7tnMhXWKsTA0KIY9E:hcBHwSwVmpaZP/ItSHKsTAQY9

Malware Config

Extracted

Family

cryptbot

C2

http://home.fivenn5sr.top/DoDOGDWnPbpMwhmjDvNk17

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\cf284105b76caf1f2f775de2207e9743ca4a479924b06b0ab3a41251104953f3.exe
    "C:\Users\Admin\AppData\Local\Temp\cf284105b76caf1f2f775de2207e9743ca4a479924b06b0ab3a41251104953f3.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:4936
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 1144
      2⤵
      • Program crash
      PID:532
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4936 -ip 4936
    1⤵
      PID:3760

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4936-0-0x0000000000700000-0x00000000012D1000-memory.dmp

      Filesize

      11.8MB

    • memory/4936-1-0x0000000077D44000-0x0000000077D46000-memory.dmp

      Filesize

      8KB

    • memory/4936-2-0x0000000000701000-0x000000000099A000-memory.dmp

      Filesize

      2.6MB

    • memory/4936-3-0x0000000000700000-0x00000000012D1000-memory.dmp

      Filesize

      11.8MB

    • memory/4936-4-0x0000000000700000-0x00000000012D1000-memory.dmp

      Filesize

      11.8MB

    • memory/4936-5-0x0000000000700000-0x00000000012D1000-memory.dmp

      Filesize

      11.8MB

    • memory/4936-6-0x0000000000700000-0x00000000012D1000-memory.dmp

      Filesize

      11.8MB

    • memory/4936-7-0x0000000000700000-0x00000000012D1000-memory.dmp

      Filesize

      11.8MB

    • memory/4936-8-0x0000000000700000-0x00000000012D1000-memory.dmp

      Filesize

      11.8MB

    • memory/4936-9-0x0000000000700000-0x00000000012D1000-memory.dmp

      Filesize

      11.8MB

    • memory/4936-10-0x0000000000700000-0x00000000012D1000-memory.dmp

      Filesize

      11.8MB

    • memory/4936-11-0x0000000000700000-0x00000000012D1000-memory.dmp

      Filesize

      11.8MB

    • memory/4936-12-0x0000000000700000-0x00000000012D1000-memory.dmp

      Filesize

      11.8MB

    • memory/4936-13-0x0000000000700000-0x00000000012D1000-memory.dmp

      Filesize

      11.8MB

    • memory/4936-14-0x0000000000700000-0x00000000012D1000-memory.dmp

      Filesize

      11.8MB

    • memory/4936-15-0x0000000000700000-0x00000000012D1000-memory.dmp

      Filesize

      11.8MB

    • memory/4936-16-0x0000000000700000-0x00000000012D1000-memory.dmp

      Filesize

      11.8MB

    • memory/4936-17-0x0000000000700000-0x00000000012D1000-memory.dmp

      Filesize

      11.8MB

    • memory/4936-18-0x0000000000700000-0x00000000012D1000-memory.dmp

      Filesize

      11.8MB