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Analysis

  • max time kernel
    146s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/04/2024, 21:28

General

  • Target

    f9cde14566b4688d0565dbc86f5f1b22f065991db05717db6e6e365ca04408a2.exe

  • Size

    1.8MB

  • MD5

    ed8d95be7ff7da6f2ac46cada635870c

  • SHA1

    849b5a1d24c87b5840055a3b87977d9a9ce1c221

  • SHA256

    f9cde14566b4688d0565dbc86f5f1b22f065991db05717db6e6e365ca04408a2

  • SHA512

    17897799aea0b43e1945739632f6e3ea0f3f8a3f0f705fe9fc8e7213ec6f6a1a640884b184d7166deedf9c5b3d8e9856ebb43cadc1f561c1c49cd439c56796b6

  • SSDEEP

    49152:+t9ZMm/MCTr6vlhs+zfoSSOvG7bW00MI6:QfZJTascfoPOvG7bW0o6

Malware Config

Extracted

Family

amadey

Version

4.17

C2

http://193.233.132.167

Attributes
  • install_dir

    4d0ab15804

  • install_file

    chrosha.exe

  • strings_key

    1a9519d7b465e1f4880fa09a6162d768

  • url_paths

    /enigma/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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 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 data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 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 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f9cde14566b4688d0565dbc86f5f1b22f065991db05717db6e6e365ca04408a2.exe
    "C:\Users\Admin\AppData\Local\Temp\f9cde14566b4688d0565dbc86f5f1b22f065991db05717db6e6e365ca04408a2.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
    PID:2900
  • C:\Users\Admin\AppData\Local\Temp\4d0ab15804\chrosha.exe
    C:\Users\Admin\AppData\Local\Temp\4d0ab15804\chrosha.exe
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks computer location settings
    • Executes dropped EXE
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:640
    • C:\Users\Admin\AppData\Local\Temp\1000167001\build_1GyXIDXRUC.exe
      "C:\Users\Admin\AppData\Local\Temp\1000167001\build_1GyXIDXRUC.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:948
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3048
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\cred64.dll, Main
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:5044
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\cred64.dll, Main
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2112
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:4540
          • 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\536055032331_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1056
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\clip64.dll, Main
        2⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        PID:3640

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\1000167001\build_1GyXIDXRUC.exe

      Filesize

      210KB

      MD5

      51b0ed6b4908a21e5cc1d9ec7c046040

      SHA1

      d874f6da7327b2f1b3ace5e66bc763c557ac382e

      SHA256

      4e68c5a537320cbe88842a53e5691b7f1a590b9c0b491a12baaeeda111dcaa4d

      SHA512

      48ec96b209d7061a1276496feb250cf183891b950465d3a916c999aa1efc1c8831b068ce0fce4ce21d09677f945b3d816ed4040146462a0ce0845318041586a2

    • C:\Users\Admin\AppData\Local\Temp\4d0ab15804\chrosha.exe

      Filesize

      1.8MB

      MD5

      ed8d95be7ff7da6f2ac46cada635870c

      SHA1

      849b5a1d24c87b5840055a3b87977d9a9ce1c221

      SHA256

      f9cde14566b4688d0565dbc86f5f1b22f065991db05717db6e6e365ca04408a2

      SHA512

      17897799aea0b43e1945739632f6e3ea0f3f8a3f0f705fe9fc8e7213ec6f6a1a640884b184d7166deedf9c5b3d8e9856ebb43cadc1f561c1c49cd439c56796b6

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_11vrhlpg.gmy.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\clip64.dll

      Filesize

      109KB

      MD5

      154c3f1334dd435f562672f2664fea6b

      SHA1

      51dd25e2ba98b8546de163b8f26e2972a90c2c79

      SHA256

      5f431129f97f3d56929f1e5584819e091bd6c854d7e18503074737fc6d79e33f

      SHA512

      1bca69bbcdb7ecd418769e9d4befc458f9f8e3cee81feb7316bb61e189e2904f4431e4cc7d291e179a5dec441b959d428d8e433f579036f763bbad6460222841

    • C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\cred64.dll

      Filesize

      1.2MB

      MD5

      f35b671fda2603ec30ace10946f11a90

      SHA1

      059ad6b06559d4db581b1879e709f32f80850872

      SHA256

      83e3df5bec15d5333935bea8b719a6d677e2fb3dc1cf9e18e7b82fd0438285c7

      SHA512

      b5fa27d08c64727cef7fdda5e68054a4359cd697df50d70d1d90da583195959a139066a6214531bbc5f20cd4f9bc1ca3e4244396547381291a6a1d2df9cf8705

    • memory/640-104-0x0000000000670000-0x0000000000B15000-memory.dmp

      Filesize

      4.6MB

    • memory/640-25-0x0000000004F00000-0x0000000004F01000-memory.dmp

      Filesize

      4KB

    • memory/640-105-0x0000000000670000-0x0000000000B15000-memory.dmp

      Filesize

      4.6MB

    • memory/640-92-0x0000000000670000-0x0000000000B15000-memory.dmp

      Filesize

      4.6MB

    • memory/640-80-0x0000000000670000-0x0000000000B15000-memory.dmp

      Filesize

      4.6MB

    • memory/640-106-0x0000000000670000-0x0000000000B15000-memory.dmp

      Filesize

      4.6MB

    • memory/640-107-0x0000000000670000-0x0000000000B15000-memory.dmp

      Filesize

      4.6MB

    • memory/640-108-0x0000000000670000-0x0000000000B15000-memory.dmp

      Filesize

      4.6MB

    • memory/640-18-0x0000000000670000-0x0000000000B15000-memory.dmp

      Filesize

      4.6MB

    • memory/640-51-0x0000000000670000-0x0000000000B15000-memory.dmp

      Filesize

      4.6MB

    • memory/640-24-0x0000000004EF0000-0x0000000004EF1000-memory.dmp

      Filesize

      4KB

    • memory/640-23-0x0000000004F50000-0x0000000004F51000-memory.dmp

      Filesize

      4KB

    • memory/640-22-0x0000000004F10000-0x0000000004F11000-memory.dmp

      Filesize

      4KB

    • memory/640-21-0x0000000004F30000-0x0000000004F31000-memory.dmp

      Filesize

      4KB

    • memory/640-20-0x0000000004F20000-0x0000000004F21000-memory.dmp

      Filesize

      4KB

    • memory/640-19-0x0000000000670000-0x0000000000B15000-memory.dmp

      Filesize

      4.6MB

    • memory/640-26-0x0000000004F70000-0x0000000004F71000-memory.dmp

      Filesize

      4KB

    • memory/640-109-0x0000000000670000-0x0000000000B15000-memory.dmp

      Filesize

      4.6MB

    • memory/948-45-0x0000000000480000-0x00000000004B6000-memory.dmp

      Filesize

      216KB

    • memory/948-44-0x0000000000480000-0x00000000004B6000-memory.dmp

      Filesize

      216KB

    • memory/1056-82-0x00000173A3660000-0x00000173A3670000-memory.dmp

      Filesize

      64KB

    • memory/1056-72-0x000001738B310000-0x000001738B332000-memory.dmp

      Filesize

      136KB

    • memory/1056-91-0x00007FFAEA380000-0x00007FFAEAE41000-memory.dmp

      Filesize

      10.8MB

    • memory/1056-85-0x000001738B380000-0x000001738B38A000-memory.dmp

      Filesize

      40KB

    • memory/1056-84-0x000001738B3A0000-0x000001738B3B2000-memory.dmp

      Filesize

      72KB

    • memory/1056-83-0x00000173A3660000-0x00000173A3670000-memory.dmp

      Filesize

      64KB

    • memory/1056-81-0x00000173A3660000-0x00000173A3670000-memory.dmp

      Filesize

      64KB

    • memory/1056-79-0x00007FFAEA380000-0x00007FFAEAE41000-memory.dmp

      Filesize

      10.8MB

    • memory/2900-10-0x0000000004D00000-0x0000000004D01000-memory.dmp

      Filesize

      4KB

    • memory/2900-3-0x0000000004CC0000-0x0000000004CC1000-memory.dmp

      Filesize

      4KB

    • memory/2900-15-0x0000000000200000-0x00000000006A5000-memory.dmp

      Filesize

      4.6MB

    • memory/2900-1-0x0000000077C14000-0x0000000077C16000-memory.dmp

      Filesize

      8KB

    • memory/2900-6-0x0000000004C90000-0x0000000004C91000-memory.dmp

      Filesize

      4KB

    • memory/2900-9-0x0000000004D10000-0x0000000004D11000-memory.dmp

      Filesize

      4KB

    • memory/2900-0-0x0000000000200000-0x00000000006A5000-memory.dmp

      Filesize

      4.6MB

    • memory/2900-5-0x0000000004CF0000-0x0000000004CF1000-memory.dmp

      Filesize

      4KB

    • memory/2900-7-0x0000000004CA0000-0x0000000004CA1000-memory.dmp

      Filesize

      4KB

    • memory/2900-8-0x0000000004CD0000-0x0000000004CD1000-memory.dmp

      Filesize

      4KB

    • memory/2900-4-0x0000000004CB0000-0x0000000004CB1000-memory.dmp

      Filesize

      4KB

    • memory/2900-2-0x0000000000200000-0x00000000006A5000-memory.dmp

      Filesize

      4.6MB

    • memory/3048-46-0x00000000734E0000-0x0000000073C90000-memory.dmp

      Filesize

      7.7MB

    • memory/3048-47-0x0000000005A50000-0x0000000005FF4000-memory.dmp

      Filesize

      5.6MB

    • memory/3048-48-0x00000000054E0000-0x00000000054F0000-memory.dmp

      Filesize

      64KB

    • memory/3048-49-0x0000000006470000-0x00000000064D6000-memory.dmp

      Filesize

      408KB

    • memory/3048-50-0x0000000006A60000-0x0000000006AF2000-memory.dmp

      Filesize

      584KB

    • memory/3048-43-0x0000000000400000-0x000000000041C000-memory.dmp

      Filesize

      112KB

    • memory/3048-78-0x00000000734E0000-0x0000000073C90000-memory.dmp

      Filesize

      7.7MB