Analysis

  • max time kernel
    142s
  • max time network
    137s
  • 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, 22:37

General

  • Target
    dcf44319c87c1f3fc8c36652d58a7d99b78fc068048a9c518b765ac7af767af7.exe
  • Size 1.8MB
  • Sample240403-2jw9ysfd49
  • SHA256 dcf44319c87c1f3fc8c36652d58a7d99b78fc068048a9c518b765ac7af767af7
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • amadey

Version
  • 4.18

C2
  • http://193.233.132.56

Attributes
  • install_dir

    09fd851a4f

  • install_file

    explorha.exe

  • strings_key

    443351145ece4966ded809641c77cfa8

  • url_paths

    /Pneh2sXQk0/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
  • Blocklisted process makes network request 2 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 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.

  • 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 4 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 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dcf44319c87c1f3fc8c36652d58a7d99b78fc068048a9c518b765ac7af767af7.exe
    "C:\Users\Admin\AppData\Local\Temp\dcf44319c87c1f3fc8c36652d58a7d99b78fc068048a9c518b765ac7af767af7.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:4200
    • C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.exe
      "C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.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:1692
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\a091ec0a6e2227\cred64.dll, Main
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:4740
        • C:\Windows\system32\rundll32.exe
          "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\a091ec0a6e2227\cred64.dll, Main
          4⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:564
          • C:\Windows\system32\netsh.exe
            netsh wlan show profiles
            5⤵
              PID:4136
            • 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\637591879962_Desktop.zip' -CompressionLevel Optimal
              5⤵
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:236
        • C:\Windows\SysWOW64\rundll32.exe
          "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\a091ec0a6e2227\clip64.dll, Main
          3⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          PID:2336
    • C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.exe
      C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.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:2956
    • C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.exe
      C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.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:244

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          explorha.exe

          • Path C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.exe
          • Size 1.8MB
          • SHA256 dcf44319c87c1f3fc8c36652d58a7d99b78fc068048a9c518b765ac7af767af7
          • MD5 SHA1 SHA512 SSDEEP

          __PSScriptPolicyTest_vsknkph4.s55.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vsknkph4.s55.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          clip64.dll

          • Path C:\Users\Admin\AppData\Roaming\a091ec0a6e2227\clip64.dll
          • Size 109KB
          • SHA256 12fef2d5995d671ec0e91bdbdc91e2b0d3c90ed3a8b2b13ddaa8ad64727dcd46
          • MD5 SHA1 SHA512 SSDEEP

          cred64.dll

          • Path C:\Users\Admin\AppData\Roaming\a091ec0a6e2227\cred64.dll
          • Size 1.2MB
          • SHA256 3c97bb410e49b11af8116feb7240b7101e1967cae7538418c45c3d2e072e8103
          • MD5 SHA1 SHA512 SSDEEP

          memory/236-58-0x000001BF961C0000-0x000001BF961D0000-memory.dmp

          memory/236-53-0x000001BF96870000-0x000001BF96892000-memory.dmp

          memory/236-54-0x00007FFF5A320000-0x00007FFF5ADE2000-memory.dmp

          memory/236-55-0x000001BF961C0000-0x000001BF961D0000-memory.dmp

          memory/236-57-0x000001BF961C0000-0x000001BF961D0000-memory.dmp

          memory/236-59-0x000001BFAE910000-0x000001BFAE922000-memory.dmp

          memory/236-60-0x000001BF968B0000-0x000001BF968BA000-memory.dmp

          memory/236-66-0x00007FFF5A320000-0x00007FFF5ADE2000-memory.dmp

          memory/244-100-0x00000000050E0000-0x00000000050E1000-memory.dmp

          memory/244-101-0x00000000050D0000-0x00000000050D1000-memory.dmp

          memory/244-97-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/244-99-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/244-105-0x00000000050F0000-0x00000000050F1000-memory.dmp

          memory/244-102-0x0000000005110000-0x0000000005111000-memory.dmp

          memory/244-104-0x00000000050C0000-0x00000000050C1000-memory.dmp

          memory/244-103-0x00000000050B0000-0x00000000050B1000-memory.dmp

          memory/244-106-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/1692-30-0x0000000004F20000-0x0000000004F21000-memory.dmp

          memory/1692-98-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/1692-33-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/1692-31-0x0000000004F90000-0x0000000004F91000-memory.dmp

          memory/1692-27-0x0000000004F30000-0x0000000004F31000-memory.dmp

          memory/1692-28-0x0000000004F70000-0x0000000004F71000-memory.dmp

          memory/1692-29-0x0000000004F10000-0x0000000004F11000-memory.dmp

          memory/1692-110-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/1692-56-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/1692-25-0x0000000004F40000-0x0000000004F41000-memory.dmp

          memory/1692-26-0x0000000004F50000-0x0000000004F51000-memory.dmp

          memory/1692-24-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/1692-22-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/1692-109-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/1692-67-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/1692-68-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/1692-108-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/1692-79-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/1692-107-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/1692-32-0x0000000004F80000-0x0000000004F81000-memory.dmp

          memory/1692-95-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/1692-94-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/1692-93-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/1692-92-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/1692-91-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/1692-90-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/2956-89-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/2956-82-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/2956-83-0x0000000005090000-0x0000000005091000-memory.dmp

          memory/2956-84-0x0000000005080000-0x0000000005081000-memory.dmp

          memory/2956-85-0x00000000050C0000-0x00000000050C1000-memory.dmp

          memory/2956-87-0x0000000005070000-0x0000000005071000-memory.dmp

          memory/2956-88-0x00000000050A0000-0x00000000050A1000-memory.dmp

          memory/2956-81-0x0000000000160000-0x0000000000617000-memory.dmp

          memory/2956-86-0x0000000005060000-0x0000000005061000-memory.dmp

          memory/4200-7-0x0000000005170000-0x0000000005171000-memory.dmp

          memory/4200-8-0x0000000005180000-0x0000000005181000-memory.dmp

          memory/4200-6-0x00000000051D0000-0x00000000051D1000-memory.dmp

          memory/4200-5-0x0000000005190000-0x0000000005191000-memory.dmp

          memory/4200-3-0x00000000051A0000-0x00000000051A1000-memory.dmp

          memory/4200-4-0x00000000051B0000-0x00000000051B1000-memory.dmp

          memory/4200-2-0x0000000000C10000-0x00000000010C7000-memory.dmp

          memory/4200-1-0x0000000077286000-0x0000000077288000-memory.dmp

          memory/4200-9-0x0000000005200000-0x0000000005201000-memory.dmp

          memory/4200-10-0x00000000051F0000-0x00000000051F1000-memory.dmp

          memory/4200-21-0x0000000000C10000-0x00000000010C7000-memory.dmp

          memory/4200-0-0x0000000000C10000-0x00000000010C7000-memory.dmp