Analysis

  • max time kernel
    141s
  • max time network
    141s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    03/04/2024, 02:26

General

  • Target
    568563236c6ccea686ff3174a5bfb4c9d213602daf94c3885993fa96860241d8.exe
  • Size 1.8MB
  • Sample240403-cww3aadc3w
  • SHA256 568563236c6ccea686ff3174a5bfb4c9d213602daf94c3885993fa96860241d8
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • amadey

Version
  • 4.17

C2
  • http://185.215.113.32

Attributes
  • install_dir

    00c07260dc

  • install_file

    explorgu.exe

  • strings_key

    461809bd97c251ba0c0c8450c7055f1d

  • url_paths

    /yandex/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 2 IoCs
  • Blocklisted process makes network request 2 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Identifies Wine through registry keys 2 TTPs 2 IoCs

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

  • Loads dropped DLL 3 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\568563236c6ccea686ff3174a5bfb4c9d213602daf94c3885993fa96860241d8.exe
    "C:\Users\Admin\AppData\Local\Temp\568563236c6ccea686ff3174a5bfb4c9d213602daf94c3885993fa96860241d8.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
    PID:3124
  • C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe
    C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.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
    • Suspicious use of WriteProcessMemory
    PID:4360
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2704
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4776
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:3256
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell -Command Compress-Archive -Path 'C:\Users\Admin\AppData\Local\Temp\_Files_\' -DestinationPath 'C:\Users\Admin\AppData\Local\Temp\594324687199_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2468
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dll, Main
        2⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        PID:4640

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          explorgu.exe

          • Path C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe
          • Size 1.8MB
          • SHA256 568563236c6ccea686ff3174a5bfb4c9d213602daf94c3885993fa96860241d8
          • MD5 SHA1 SHA512 SSDEEP

          __PSScriptPolicyTest_dgxargn3.ent.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dgxargn3.ent.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          clip64.dll

          • Path C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dll
          • Size 109KB
          • SHA256 8d31b39170909595b518b1a03e9ec950540fabd545ed14817cac5c84b91599ee
          • MD5 SHA1 SHA512 SSDEEP

          cred64.dll

          • Path C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll
          • Size 1.2MB
          • SHA256 b4588feacc183cd5a089f9bb950827b75df04bd5a6e67c95ff258e4a34aa0d72
          • MD5 SHA1 SHA512 SSDEEP

          memory/2468-62-0x00007FFA191F0000-0x00007FFA19CB2000-memory.dmp

          memory/2468-55-0x0000027A7CFC0000-0x0000027A7CFD2000-memory.dmp

          memory/2468-56-0x0000027A7CF40000-0x0000027A7CF4A000-memory.dmp

          memory/2468-54-0x0000027A7CF50000-0x0000027A7CF60000-memory.dmp

          memory/2468-51-0x00007FFA191F0000-0x00007FFA19CB2000-memory.dmp

          memory/2468-52-0x0000027A7CF50000-0x0000027A7CF60000-memory.dmp

          memory/2468-50-0x0000027A7CF10000-0x0000027A7CF32000-memory.dmp

          memory/3124-15-0x00000000003A0000-0x0000000000849000-memory.dmp

          memory/3124-10-0x0000000004B60000-0x0000000004B61000-memory.dmp

          memory/3124-1-0x00000000776A6000-0x00000000776A8000-memory.dmp

          memory/3124-2-0x00000000003A0000-0x0000000000849000-memory.dmp

          memory/3124-4-0x0000000004B20000-0x0000000004B21000-memory.dmp

          memory/3124-5-0x0000000004B00000-0x0000000004B01000-memory.dmp

          memory/3124-3-0x0000000004B10000-0x0000000004B11000-memory.dmp

          memory/3124-6-0x0000000004B40000-0x0000000004B41000-memory.dmp

          memory/3124-7-0x0000000004AE0000-0x0000000004AE1000-memory.dmp

          memory/3124-0-0x00000000003A0000-0x0000000000849000-memory.dmp

          memory/3124-8-0x0000000004AF0000-0x0000000004AF1000-memory.dmp

          memory/3124-9-0x0000000004B70000-0x0000000004B71000-memory.dmp

          memory/4360-25-0x0000000005580000-0x0000000005581000-memory.dmp

          memory/4360-19-0x0000000000B20000-0x0000000000FC9000-memory.dmp

          memory/4360-27-0x0000000005600000-0x0000000005601000-memory.dmp

          memory/4360-28-0x00000000055F0000-0x00000000055F1000-memory.dmp

          memory/4360-26-0x00000000055D0000-0x00000000055D1000-memory.dmp

          memory/4360-23-0x00000000055E0000-0x00000000055E1000-memory.dmp

          memory/4360-24-0x0000000005570000-0x0000000005571000-memory.dmp

          memory/4360-53-0x0000000000B20000-0x0000000000FC9000-memory.dmp

          memory/4360-20-0x00000000055A0000-0x00000000055A1000-memory.dmp

          memory/4360-22-0x0000000005590000-0x0000000005591000-memory.dmp

          memory/4360-21-0x00000000055B0000-0x00000000055B1000-memory.dmp

          memory/4360-29-0x0000000000B20000-0x0000000000FC9000-memory.dmp

          memory/4360-63-0x0000000000B20000-0x0000000000FC9000-memory.dmp

          memory/4360-64-0x0000000000B20000-0x0000000000FC9000-memory.dmp

          memory/4360-18-0x0000000000B20000-0x0000000000FC9000-memory.dmp

          memory/4360-76-0x0000000000B20000-0x0000000000FC9000-memory.dmp

          memory/4360-77-0x0000000000B20000-0x0000000000FC9000-memory.dmp

          memory/4360-78-0x0000000000B20000-0x0000000000FC9000-memory.dmp

          memory/4360-79-0x0000000000B20000-0x0000000000FC9000-memory.dmp

          memory/4360-80-0x0000000000B20000-0x0000000000FC9000-memory.dmp

          memory/4360-81-0x0000000000B20000-0x0000000000FC9000-memory.dmp

          memory/4360-82-0x0000000000B20000-0x0000000000FC9000-memory.dmp