Analysis

  • max time kernel
    146s
  • max time network
    152s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    03-07-2024 19:25

General

  • Target

    428c8a4afe59f8fbce285237357ca98e38e08206a671caa2477c3b1fcc000450.exe

  • Size

    1.8MB

  • MD5

    4391cc413e2c6880cac804fdbfc6b3e3

  • SHA1

    656e598cdd4a9fe2a4bb53d72ac9a380f60f0948

  • SHA256

    428c8a4afe59f8fbce285237357ca98e38e08206a671caa2477c3b1fcc000450

  • SHA512

    539dc59920115be09f49702b7e7d0edaf912d72e1df9ec1d78a81c74cd5e7030789d74dd85c295591e71d259bcacd81d98533ac0ff6faef712ce44e4e8a7d605

  • SSDEEP

    49152:mU4xHR908Hvw2cX87LuzjRBvoL97Zwxhl3D:m5HmTHHRVoRVS3

Malware Config

Extracted

Family

amadey

Version

4.30

Botnet

4dd39d

C2

http://77.91.77.82

Attributes
  • install_dir

    ad40971b6b

  • install_file

    explorti.exe

  • strings_key

    a434973ad22def7137dbb5e059b7081e

  • url_paths

    /Hun4Ko/index.php

rc4.plain

Extracted

Family

stealc

Botnet

jony

C2

http://85.28.47.4

Attributes
  • url_path

    /920475a59bac849d.php

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • Stealc

    Stealc is an infostealer written in C++.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 4 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 8 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Identifies Wine through registry keys 2 TTPs 4 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • 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 12 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\428c8a4afe59f8fbce285237357ca98e38e08206a671caa2477c3b1fcc000450.exe
    "C:\Users\Admin\AppData\Local\Temp\428c8a4afe59f8fbce285237357ca98e38e08206a671caa2477c3b1fcc000450.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2052
    • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
      "C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1464
      • C:\Users\Admin\AppData\Local\Temp\1000006001\31eca4c46c.exe
        "C:\Users\Admin\AppData\Local\Temp\1000006001\31eca4c46c.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        PID:3604
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3604 -s 1456
          4⤵
          • Program crash
          PID:4648
  • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
    C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Executes dropped EXE
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    PID:3640
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 3604 -ip 3604
    1⤵
      PID:3864
    • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
      C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
      1⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      PID:2708

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\1000006001\31eca4c46c.exe

      Filesize

      2.4MB

      MD5

      f7f2373c7005d9978782be75bef6a1c4

      SHA1

      24523818e79c6ccc38c90de912743552e98be2be

      SHA256

      bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13

      SHA512

      26e4a9ba65207c91dd181c5010d051838d6172dcbfc165aa750cbe72297dde0b0c0e54b024a6cba070089f3ac5f943d67ba779ee64f78a8f37b425f274f607d8

    • C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe

      Filesize

      1.8MB

      MD5

      4391cc413e2c6880cac804fdbfc6b3e3

      SHA1

      656e598cdd4a9fe2a4bb53d72ac9a380f60f0948

      SHA256

      428c8a4afe59f8fbce285237357ca98e38e08206a671caa2477c3b1fcc000450

      SHA512

      539dc59920115be09f49702b7e7d0edaf912d72e1df9ec1d78a81c74cd5e7030789d74dd85c295591e71d259bcacd81d98533ac0ff6faef712ce44e4e8a7d605

    • memory/1464-56-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB

    • memory/1464-22-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB

    • memory/1464-68-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB

    • memory/1464-66-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB

    • memory/1464-18-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB

    • memory/1464-65-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB

    • memory/1464-19-0x0000000000D11000-0x0000000000D3F000-memory.dmp

      Filesize

      184KB

    • memory/1464-20-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB

    • memory/1464-21-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB

    • memory/1464-40-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB

    • memory/1464-64-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB

    • memory/1464-60-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB

    • memory/1464-39-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB

    • memory/1464-48-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB

    • memory/1464-41-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB

    • memory/1464-54-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB

    • memory/1464-44-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB

    • memory/1464-52-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB

    • memory/1464-67-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB

    • memory/1464-50-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB

    • memory/2052-0-0x0000000000C30000-0x00000000010D8000-memory.dmp

      Filesize

      4.7MB

    • memory/2052-3-0x0000000000C30000-0x00000000010D8000-memory.dmp

      Filesize

      4.7MB

    • memory/2052-5-0x0000000000C30000-0x00000000010D8000-memory.dmp

      Filesize

      4.7MB

    • memory/2052-2-0x0000000000C31000-0x0000000000C5F000-memory.dmp

      Filesize

      184KB

    • memory/2052-16-0x0000000000C30000-0x00000000010D8000-memory.dmp

      Filesize

      4.7MB

    • memory/2052-1-0x0000000077026000-0x0000000077028000-memory.dmp

      Filesize

      8KB

    • memory/2708-63-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB

    • memory/2708-62-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB

    • memory/3604-57-0x0000000000260000-0x0000000000E3F000-memory.dmp

      Filesize

      11.9MB

    • memory/3604-49-0x0000000000260000-0x0000000000E3F000-memory.dmp

      Filesize

      11.9MB

    • memory/3604-59-0x0000000000260000-0x0000000000E3F000-memory.dmp

      Filesize

      11.9MB

    • memory/3604-38-0x0000000000260000-0x0000000000E3F000-memory.dmp

      Filesize

      11.9MB

    • memory/3604-55-0x0000000000260000-0x0000000000E3F000-memory.dmp

      Filesize

      11.9MB

    • memory/3604-47-0x0000000000260000-0x0000000000E3F000-memory.dmp

      Filesize

      11.9MB

    • memory/3604-42-0x0000000000260000-0x0000000000E3F000-memory.dmp

      Filesize

      11.9MB

    • memory/3604-53-0x0000000000260000-0x0000000000E3F000-memory.dmp

      Filesize

      11.9MB

    • memory/3604-51-0x0000000000260000-0x0000000000E3F000-memory.dmp

      Filesize

      11.9MB

    • memory/3640-45-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB

    • memory/3640-46-0x0000000000D10000-0x00000000011B8000-memory.dmp

      Filesize

      4.7MB