Analysis

  • max time kernel
    155s
  • max time network
    166s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-04-2024 11:54

General

  • Target

    d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.exe

  • Size

    1.8MB

  • MD5

    3d4397786288039d61fc9910c08907d6

  • SHA1

    7abf7e78cb21394cd4a2cbdc552bccaa89c7597d

  • SHA256

    d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947

  • SHA512

    8c9bedbd1131ef62ba1b75eef622f0eadad03389086afd2b30460ffd4a2f29d4dce5a0c5c2b4fea7241c29e8159238b8be8b0851c90d9165723e561bb65f2362

  • SSDEEP

    49152:8/fdU6c0ymXOkxEK6qYPFHCDD004KgjW1XAC:AimXOPKUPQDD/4KgjW1X

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\d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.exe
    "C:\Users\Admin\AppData\Local\Temp\d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947.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:772
  • 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=4076 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:1572
    • 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:4740
      • 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:5108
        • 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:3852
          • C:\Windows\system32\netsh.exe
            netsh wlan show profiles
            4⤵
              PID:2872
            • 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:2612
        • 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:2136

      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

        3d4397786288039d61fc9910c08907d6

        SHA1

        7abf7e78cb21394cd4a2cbdc552bccaa89c7597d

        SHA256

        d3d3b31f40e3882229f59b19230c8d78f488c5a8ddcc4afc56e9619c64b84947

        SHA512

        8c9bedbd1131ef62ba1b75eef622f0eadad03389086afd2b30460ffd4a2f29d4dce5a0c5c2b4fea7241c29e8159238b8be8b0851c90d9165723e561bb65f2362

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_z5ihykm4.qmq.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/772-9-0x0000000004EB0000-0x0000000004EB1000-memory.dmp
        Filesize

        4KB

      • memory/772-11-0x0000000004EE0000-0x0000000004EE1000-memory.dmp
        Filesize

        4KB

      • memory/772-6-0x0000000004E50000-0x0000000004E51000-memory.dmp
        Filesize

        4KB

      • memory/772-8-0x0000000004E60000-0x0000000004E61000-memory.dmp
        Filesize

        4KB

      • memory/772-3-0x0000000004E80000-0x0000000004E81000-memory.dmp
        Filesize

        4KB

      • memory/772-7-0x0000000004E70000-0x0000000004E71000-memory.dmp
        Filesize

        4KB

      • memory/772-10-0x0000000000380000-0x0000000000823000-memory.dmp
        Filesize

        4.6MB

      • memory/772-5-0x0000000004EC0000-0x0000000004EC1000-memory.dmp
        Filesize

        4KB

      • memory/772-12-0x0000000004ED0000-0x0000000004ED1000-memory.dmp
        Filesize

        4KB

      • memory/772-17-0x0000000000380000-0x0000000000823000-memory.dmp
        Filesize

        4.6MB

      • memory/772-4-0x0000000004E90000-0x0000000004E91000-memory.dmp
        Filesize

        4KB

      • memory/772-2-0x0000000000380000-0x0000000000823000-memory.dmp
        Filesize

        4.6MB

      • memory/772-0-0x0000000000380000-0x0000000000823000-memory.dmp
        Filesize

        4.6MB

      • memory/772-1-0x0000000077A14000-0x0000000077A16000-memory.dmp
        Filesize

        8KB

      • memory/2612-57-0x000001F26B050000-0x000001F26B060000-memory.dmp
        Filesize

        64KB

      • memory/2612-66-0x00007FFE89670000-0x00007FFE8A131000-memory.dmp
        Filesize

        10.8MB

      • memory/2612-60-0x000001F26B0E0000-0x000001F26B0EA000-memory.dmp
        Filesize

        40KB

      • memory/2612-59-0x000001F26B590000-0x000001F26B5A2000-memory.dmp
        Filesize

        72KB

      • memory/2612-58-0x000001F26B050000-0x000001F26B060000-memory.dmp
        Filesize

        64KB

      • memory/2612-56-0x000001F26B050000-0x000001F26B060000-memory.dmp
        Filesize

        64KB

      • memory/2612-55-0x00007FFE89670000-0x00007FFE8A131000-memory.dmp
        Filesize

        10.8MB

      • memory/2612-50-0x000001F26B090000-0x000001F26B0B2000-memory.dmp
        Filesize

        136KB

      • memory/4740-24-0x0000000004B80000-0x0000000004B81000-memory.dmp
        Filesize

        4KB

      • memory/4740-82-0x00000000001D0000-0x0000000000673000-memory.dmp
        Filesize

        4.6MB

      • memory/4740-44-0x00000000001D0000-0x0000000000673000-memory.dmp
        Filesize

        4.6MB

      • memory/4740-30-0x00000000001D0000-0x0000000000673000-memory.dmp
        Filesize

        4.6MB

      • memory/4740-27-0x0000000004B70000-0x0000000004B71000-memory.dmp
        Filesize

        4KB

      • memory/4740-28-0x0000000004BF0000-0x0000000004BF1000-memory.dmp
        Filesize

        4KB

      • memory/4740-29-0x0000000004BE0000-0x0000000004BE1000-memory.dmp
        Filesize

        4KB

      • memory/4740-26-0x0000000004B60000-0x0000000004B61000-memory.dmp
        Filesize

        4KB

      • memory/4740-84-0x00000000001D0000-0x0000000000673000-memory.dmp
        Filesize

        4.6MB

      • memory/4740-43-0x00000000001D0000-0x0000000000673000-memory.dmp
        Filesize

        4.6MB

      • memory/4740-21-0x00000000001D0000-0x0000000000673000-memory.dmp
        Filesize

        4.6MB

      • memory/4740-25-0x0000000004BC0000-0x0000000004BC1000-memory.dmp
        Filesize

        4KB

      • memory/4740-20-0x00000000001D0000-0x0000000000673000-memory.dmp
        Filesize

        4.6MB

      • memory/4740-78-0x00000000001D0000-0x0000000000673000-memory.dmp
        Filesize

        4.6MB

      • memory/4740-79-0x00000000001D0000-0x0000000000673000-memory.dmp
        Filesize

        4.6MB

      • memory/4740-80-0x00000000001D0000-0x0000000000673000-memory.dmp
        Filesize

        4.6MB

      • memory/4740-81-0x00000000001D0000-0x0000000000673000-memory.dmp
        Filesize

        4.6MB

      • memory/4740-23-0x0000000004BA0000-0x0000000004BA1000-memory.dmp
        Filesize

        4KB

      • memory/4740-83-0x00000000001D0000-0x0000000000673000-memory.dmp
        Filesize

        4.6MB

      • memory/4740-22-0x0000000004B90000-0x0000000004B91000-memory.dmp
        Filesize

        4KB