Analysis

  • max time kernel
    113s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/07/2024, 01:06

General

  • Target
    43d3b7ec165e269bd45e0bf0b50432e0N.exe
  • Size 1.8MB
  • Sample240726-bf868szbnd
  • SHA256 5f692a76a6fa64b63aa84869e22e8671fa15418c39b409e7c59dbdd673cf2181
  • MD5 SHA1 SHA512 SSDEEP

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

Signatures

  • Amadey

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

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

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 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.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\43d3b7ec165e269bd45e0bf0b50432e0N.exe
    "C:\Users\Admin\AppData\Local\Temp\43d3b7ec165e269bd45e0bf0b50432e0N.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks computer location settings
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:4248
    • 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
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:3044
  • 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:1540
  • 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:4940

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        explorti.exe

        • Path C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
        • Size 1.8MB
        • SHA256 5f692a76a6fa64b63aa84869e22e8671fa15418c39b409e7c59dbdd673cf2181
        • MD5 SHA1 SHA512 SSDEEP

        memory/1540-24-0x00000000008C0000-0x0000000000D61000-memory.dmp

        memory/1540-22-0x00000000008C0000-0x0000000000D61000-memory.dmp

        memory/1540-20-0x00000000008C0000-0x0000000000D61000-memory.dmp

        memory/3044-26-0x00000000008C0000-0x0000000000D61000-memory.dmp

        memory/3044-29-0x00000000008C0000-0x0000000000D61000-memory.dmp

        memory/3044-42-0x00000000008C0000-0x0000000000D61000-memory.dmp

        memory/3044-18-0x00000000008C0000-0x0000000000D61000-memory.dmp

        memory/3044-41-0x00000000008C0000-0x0000000000D61000-memory.dmp

        memory/3044-21-0x00000000008C0000-0x0000000000D61000-memory.dmp

        memory/3044-40-0x00000000008C0000-0x0000000000D61000-memory.dmp

        memory/3044-23-0x00000000008C0000-0x0000000000D61000-memory.dmp

        memory/3044-39-0x00000000008C0000-0x0000000000D61000-memory.dmp

        memory/3044-25-0x00000000008C0000-0x0000000000D61000-memory.dmp

        memory/3044-38-0x00000000008C0000-0x0000000000D61000-memory.dmp

        memory/3044-27-0x00000000008C0000-0x0000000000D61000-memory.dmp

        memory/3044-28-0x00000000008C0000-0x0000000000D61000-memory.dmp

        memory/3044-35-0x00000000008C0000-0x0000000000D61000-memory.dmp

        memory/3044-30-0x00000000008C0000-0x0000000000D61000-memory.dmp

        memory/3044-31-0x00000000008C0000-0x0000000000D61000-memory.dmp

        memory/3044-32-0x00000000008C0000-0x0000000000D61000-memory.dmp

        memory/3044-33-0x00000000008C0000-0x0000000000D61000-memory.dmp

        memory/4248-4-0x0000000000B10000-0x0000000000FB1000-memory.dmp

        memory/4248-0-0x0000000000B10000-0x0000000000FB1000-memory.dmp

        memory/4248-1-0x0000000077094000-0x0000000077096000-memory.dmp

        memory/4248-2-0x0000000000B11000-0x0000000000B3F000-memory.dmp

        memory/4248-3-0x0000000000B10000-0x0000000000FB1000-memory.dmp

        memory/4248-17-0x0000000000B10000-0x0000000000FB1000-memory.dmp

        memory/4940-36-0x00000000008C0000-0x0000000000D61000-memory.dmp

        memory/4940-37-0x00000000008C0000-0x0000000000D61000-memory.dmp