Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    27/03/2024, 07:50

General

  • Target
    3d42c65185ffb3aa118b76d917f6fa16bb5ff09ffeb74e55ad8b1dcd6f59b602.exe
  • Size 1.8MB
  • Sample240327-jprbsafg79
  • SHA256 3d42c65185ffb3aa118b76d917f6fa16bb5ff09ffeb74e55ad8b1dcd6f59b602
  • 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 FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3d42c65185ffb3aa118b76d917f6fa16bb5ff09ffeb74e55ad8b1dcd6f59b602.exe
    "C:\Users\Admin\AppData\Local\Temp\3d42c65185ffb3aa118b76d917f6fa16bb5ff09ffeb74e55ad8b1dcd6f59b602.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 FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1440
    • 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:4700
      • 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:924
        • 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:1676
          • C:\Windows\system32\netsh.exe
            netsh wlan show profiles
            5⤵
              PID:400
            • 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\084248216164_Desktop.zip' -CompressionLevel Optimal
              5⤵
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:772
        • 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:5060
    • 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:2320
    • 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:4940

    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 1.2MB
          • SHA256 bbfe87aafcfdf9675f3efe0345511bdd8c9d544b90c5742873b3ba2ac76bd5ff
          • MD5 SHA1 SHA512 SSDEEP

          explorha.exe

          • Path C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.exe
          • Size 17KB
          • SHA256 cb53e6ad9bc7e80d3bc72d2c3a9a38082fcb97b1795e9fdec64e67be788997fb
          • MD5 SHA1 SHA512 SSDEEP

          explorha.exe

          • Path C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.exe
          • Size 1.8MB
          • SHA256 3d42c65185ffb3aa118b76d917f6fa16bb5ff09ffeb74e55ad8b1dcd6f59b602
          • MD5 SHA1 SHA512 SSDEEP

          __PSScriptPolicyTest_gytwgvp3.xy1.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gytwgvp3.xy1.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/772-63-0x00000276A5BA0000-0x00000276A5BB2000-memory.dmp

          memory/772-64-0x00000276A5930000-0x00000276A593A000-memory.dmp

          memory/772-60-0x00007FFD461D0000-0x00007FFD46C92000-memory.dmp

          memory/772-70-0x00007FFD461D0000-0x00007FFD46C92000-memory.dmp

          memory/772-62-0x00000276A5640000-0x00000276A5650000-memory.dmp

          memory/772-61-0x00000276A5640000-0x00000276A5650000-memory.dmp

          memory/772-59-0x00000276A56C0000-0x00000276A56E2000-memory.dmp

          memory/1440-5-0x0000000004E20000-0x0000000004E21000-memory.dmp

          memory/1440-4-0x0000000004E40000-0x0000000004E41000-memory.dmp

          memory/1440-1-0x0000000077A06000-0x0000000077A08000-memory.dmp

          memory/1440-11-0x0000000004E80000-0x0000000004E81000-memory.dmp

          memory/1440-0-0x00000000004C0000-0x000000000097D000-memory.dmp

          memory/1440-2-0x00000000004C0000-0x000000000097D000-memory.dmp

          memory/1440-24-0x00000000004C0000-0x000000000097D000-memory.dmp

          memory/1440-9-0x0000000004E60000-0x0000000004E61000-memory.dmp

          memory/1440-8-0x0000000004E10000-0x0000000004E11000-memory.dmp

          memory/1440-7-0x0000000004E00000-0x0000000004E01000-memory.dmp

          memory/1440-6-0x0000000004E70000-0x0000000004E71000-memory.dmp

          memory/1440-3-0x0000000004E30000-0x0000000004E31000-memory.dmp

          memory/1440-10-0x0000000004E90000-0x0000000004E91000-memory.dmp

          memory/2320-77-0x0000000005480000-0x0000000005481000-memory.dmp

          memory/2320-73-0x0000000000560000-0x0000000000A1D000-memory.dmp

          memory/2320-74-0x0000000000560000-0x0000000000A1D000-memory.dmp

          memory/2320-76-0x0000000005440000-0x0000000005441000-memory.dmp

          memory/2320-79-0x0000000005430000-0x0000000005431000-memory.dmp

          memory/2320-78-0x0000000005420000-0x0000000005421000-memory.dmp

          memory/2320-75-0x0000000005450000-0x0000000005451000-memory.dmp

          memory/2320-90-0x0000000000560000-0x0000000000A1D000-memory.dmp

          memory/4700-26-0x0000000004FF0000-0x0000000004FF1000-memory.dmp

          memory/4700-91-0x0000000000560000-0x0000000000A1D000-memory.dmp

          memory/4700-38-0x0000000000560000-0x0000000000A1D000-memory.dmp

          memory/4700-37-0x0000000000560000-0x0000000000A1D000-memory.dmp

          memory/4700-36-0x0000000000560000-0x0000000000A1D000-memory.dmp

          memory/4700-35-0x0000000000560000-0x0000000000A1D000-memory.dmp

          memory/4700-71-0x0000000000560000-0x0000000000A1D000-memory.dmp

          memory/4700-34-0x0000000000560000-0x0000000000A1D000-memory.dmp

          memory/4700-32-0x0000000005050000-0x0000000005051000-memory.dmp

          memory/4700-33-0x0000000005040000-0x0000000005041000-memory.dmp

          memory/4700-30-0x0000000004FC0000-0x0000000004FC1000-memory.dmp

          memory/4700-31-0x0000000004FD0000-0x0000000004FD1000-memory.dmp

          memory/4700-28-0x0000000004FE0000-0x0000000004FE1000-memory.dmp

          memory/4700-29-0x0000000005020000-0x0000000005021000-memory.dmp

          memory/4700-27-0x0000000005000000-0x0000000005001000-memory.dmp

          memory/4700-25-0x0000000000560000-0x0000000000A1D000-memory.dmp

          memory/4700-22-0x0000000000560000-0x0000000000A1D000-memory.dmp

          memory/4700-39-0x0000000000560000-0x0000000000A1D000-memory.dmp

          memory/4700-92-0x0000000000560000-0x0000000000A1D000-memory.dmp

          memory/4700-93-0x0000000000560000-0x0000000000A1D000-memory.dmp

          memory/4700-94-0x0000000000560000-0x0000000000A1D000-memory.dmp

          memory/4700-95-0x0000000000560000-0x0000000000A1D000-memory.dmp

          memory/4700-96-0x0000000000560000-0x0000000000A1D000-memory.dmp

          memory/4700-108-0x0000000000560000-0x0000000000A1D000-memory.dmp

          memory/4700-107-0x0000000000560000-0x0000000000A1D000-memory.dmp

          memory/4700-106-0x0000000000560000-0x0000000000A1D000-memory.dmp

          memory/4940-101-0x0000000004FE0000-0x0000000004FE1000-memory.dmp

          memory/4940-103-0x0000000004FC0000-0x0000000004FC1000-memory.dmp

          memory/4940-102-0x0000000005020000-0x0000000005021000-memory.dmp

          memory/4940-104-0x0000000004FD0000-0x0000000004FD1000-memory.dmp

          memory/4940-105-0x0000000000560000-0x0000000000A1D000-memory.dmp

          memory/4940-100-0x0000000005000000-0x0000000005001000-memory.dmp

          memory/4940-99-0x0000000004FF0000-0x0000000004FF1000-memory.dmp

          memory/4940-98-0x0000000000560000-0x0000000000A1D000-memory.dmp