Analysis

  • max time kernel
    141s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-04-2024 08:28

General

  • Target

    58adc4e07559ed969124b3f3537b0229868e859cb1a0990323eeb11b3c0679b2.exe

  • Size

    1.8MB

  • MD5

    923c53f17b938b35c2cf133096c92cbd

  • SHA1

    a23f742a606a7452791be367f5a403841c33a6ea

  • SHA256

    58adc4e07559ed969124b3f3537b0229868e859cb1a0990323eeb11b3c0679b2

  • SHA512

    221a27dcbd1728942a9de4e159e6a7493f3f1eb749b6b96ddd2f15654f9bbd6e08a32dff92ec8450afcf0a7b6c4a4c845f2d9bf8ad63a8ae3eac4b4b3d9b818d

  • SSDEEP

    49152:Ml4YdGCGA0dAJ53+ENHbexvKr8Zt1ZNX5Ti:4t1zJ53/HCxvvZH/XZ

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 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 17 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\58adc4e07559ed969124b3f3537b0229868e859cb1a0990323eeb11b3c0679b2.exe
    "C:\Users\Admin\AppData\Local\Temp\58adc4e07559ed969124b3f3537b0229868e859cb1a0990323eeb11b3c0679b2.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:2252
  • 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:1116
    • 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:1708
      • 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:4536
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:1476
          • 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\808065738166_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4860
      • 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:3828
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4136 --field-trial-handle=3084,i,4016110471176367543,14287608422419064331,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:3172

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1.8MB

        MD5

        923c53f17b938b35c2cf133096c92cbd

        SHA1

        a23f742a606a7452791be367f5a403841c33a6ea

        SHA256

        58adc4e07559ed969124b3f3537b0229868e859cb1a0990323eeb11b3c0679b2

        SHA512

        221a27dcbd1728942a9de4e159e6a7493f3f1eb749b6b96ddd2f15654f9bbd6e08a32dff92ec8450afcf0a7b6c4a4c845f2d9bf8ad63a8ae3eac4b4b3d9b818d

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5sl04e0x.5zw.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/1116-76-0x0000000000470000-0x000000000092B000-memory.dmp

        Filesize

        4.7MB

      • memory/1116-21-0x0000000000470000-0x000000000092B000-memory.dmp

        Filesize

        4.7MB

      • memory/1116-78-0x0000000000470000-0x000000000092B000-memory.dmp

        Filesize

        4.7MB

      • memory/1116-75-0x0000000000470000-0x000000000092B000-memory.dmp

        Filesize

        4.7MB

      • memory/1116-74-0x0000000000470000-0x000000000092B000-memory.dmp

        Filesize

        4.7MB

      • memory/1116-79-0x0000000000470000-0x000000000092B000-memory.dmp

        Filesize

        4.7MB

      • memory/1116-62-0x0000000000470000-0x000000000092B000-memory.dmp

        Filesize

        4.7MB

      • memory/1116-54-0x0000000000470000-0x000000000092B000-memory.dmp

        Filesize

        4.7MB

      • memory/1116-80-0x0000000000470000-0x000000000092B000-memory.dmp

        Filesize

        4.7MB

      • memory/1116-81-0x0000000000470000-0x000000000092B000-memory.dmp

        Filesize

        4.7MB

      • memory/1116-20-0x0000000000470000-0x000000000092B000-memory.dmp

        Filesize

        4.7MB

      • memory/1116-77-0x0000000000470000-0x000000000092B000-memory.dmp

        Filesize

        4.7MB

      • memory/1116-28-0x0000000004D10000-0x0000000004D11000-memory.dmp

        Filesize

        4KB

      • memory/1116-27-0x0000000004CC0000-0x0000000004CC1000-memory.dmp

        Filesize

        4KB

      • memory/1116-26-0x0000000004CB0000-0x0000000004CB1000-memory.dmp

        Filesize

        4KB

      • memory/1116-25-0x0000000004D20000-0x0000000004D21000-memory.dmp

        Filesize

        4KB

      • memory/1116-24-0x0000000004CD0000-0x0000000004CD1000-memory.dmp

        Filesize

        4KB

      • memory/1116-23-0x0000000004CF0000-0x0000000004CF1000-memory.dmp

        Filesize

        4KB

      • memory/1116-22-0x0000000004CE0000-0x0000000004CE1000-memory.dmp

        Filesize

        4KB

      • memory/1116-30-0x0000000004D30000-0x0000000004D31000-memory.dmp

        Filesize

        4KB

      • memory/1116-29-0x0000000004D40000-0x0000000004D41000-memory.dmp

        Filesize

        4KB

      • memory/1116-31-0x0000000000470000-0x000000000092B000-memory.dmp

        Filesize

        4.7MB

      • memory/2252-10-0x0000000004E00000-0x0000000004E01000-memory.dmp

        Filesize

        4KB

      • memory/2252-6-0x0000000004DE0000-0x0000000004DE1000-memory.dmp

        Filesize

        4KB

      • memory/2252-1-0x00000000777C4000-0x00000000777C6000-memory.dmp

        Filesize

        8KB

      • memory/2252-11-0x0000000004DF0000-0x0000000004DF1000-memory.dmp

        Filesize

        4KB

      • memory/2252-2-0x0000000000A10000-0x0000000000ECB000-memory.dmp

        Filesize

        4.7MB

      • memory/2252-9-0x0000000004DD0000-0x0000000004DD1000-memory.dmp

        Filesize

        4KB

      • memory/2252-0-0x0000000000A10000-0x0000000000ECB000-memory.dmp

        Filesize

        4.7MB

      • memory/2252-3-0x0000000004DA0000-0x0000000004DA1000-memory.dmp

        Filesize

        4KB

      • memory/2252-4-0x0000000004DB0000-0x0000000004DB1000-memory.dmp

        Filesize

        4KB

      • memory/2252-5-0x0000000004D90000-0x0000000004D91000-memory.dmp

        Filesize

        4KB

      • memory/2252-17-0x0000000000A10000-0x0000000000ECB000-memory.dmp

        Filesize

        4.7MB

      • memory/2252-7-0x0000000004D70000-0x0000000004D71000-memory.dmp

        Filesize

        4KB

      • memory/2252-8-0x0000000004D80000-0x0000000004D81000-memory.dmp

        Filesize

        4KB

      • memory/4860-56-0x0000016D66090000-0x0000016D6609A000-memory.dmp

        Filesize

        40KB

      • memory/4860-55-0x0000016D678C0000-0x0000016D678D2000-memory.dmp

        Filesize

        72KB

      • memory/4860-44-0x0000016D678F0000-0x0000016D67912000-memory.dmp

        Filesize

        136KB