Analysis

  • max time kernel
    145s
  • max time network
    148s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240412-en
  • resource tags

    arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    18-04-2024 07:52

General

  • Target

    5532dfb59a4d7f1bfcee31623b7b7be6b43f7b86f24098ff7e890721bca63534.exe

  • Size

    1.8MB

  • MD5

    579edaafad4cd35db85487afa7f2b778

  • SHA1

    08796fd6a37de8062c3025659cfb02eba8aa23a5

  • SHA256

    5532dfb59a4d7f1bfcee31623b7b7be6b43f7b86f24098ff7e890721bca63534

  • SHA512

    95e0049c9b12a9ea48bf244ec3170a3ecc197f2d71922c18fe39e008ecb6ac4c18596d48ea4946d56bd2394a89f8da5b6116d6cb077d80548129fbaa0f7ffaa1

  • SSDEEP

    24576:XWRcs0w7YRcjXVGr0nxUtpzVPuWlBdCY0Yv5+lnQkMWaSjymbZ+amk/oHwuL:mnHY6XVZxUtpUWdmCpSOmbZboT

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.

  • 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 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5532dfb59a4d7f1bfcee31623b7b7be6b43f7b86f24098ff7e890721bca63534.exe
    "C:\Users\Admin\AppData\Local\Temp\5532dfb59a4d7f1bfcee31623b7b7be6b43f7b86f24098ff7e890721bca63534.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
    PID:3592
  • 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
    • Executes dropped EXE
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1492
    • 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:584
      • 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:932
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:4516
          • 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\018789126929_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4760
      • 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:4784

    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

      579edaafad4cd35db85487afa7f2b778

      SHA1

      08796fd6a37de8062c3025659cfb02eba8aa23a5

      SHA256

      5532dfb59a4d7f1bfcee31623b7b7be6b43f7b86f24098ff7e890721bca63534

      SHA512

      95e0049c9b12a9ea48bf244ec3170a3ecc197f2d71922c18fe39e008ecb6ac4c18596d48ea4946d56bd2394a89f8da5b6116d6cb077d80548129fbaa0f7ffaa1

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ceqbtgvj.0x5.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/1492-61-0x0000000000F10000-0x00000000013CD000-memory.dmp

      Filesize

      4.7MB

    • memory/1492-20-0x0000000000F10000-0x00000000013CD000-memory.dmp

      Filesize

      4.7MB

    • memory/1492-84-0x0000000000F10000-0x00000000013CD000-memory.dmp

      Filesize

      4.7MB

    • memory/1492-82-0x0000000000F10000-0x00000000013CD000-memory.dmp

      Filesize

      4.7MB

    • memory/1492-81-0x0000000000F10000-0x00000000013CD000-memory.dmp

      Filesize

      4.7MB

    • memory/1492-80-0x0000000000F10000-0x00000000013CD000-memory.dmp

      Filesize

      4.7MB

    • memory/1492-79-0x0000000000F10000-0x00000000013CD000-memory.dmp

      Filesize

      4.7MB

    • memory/1492-78-0x0000000000F10000-0x00000000013CD000-memory.dmp

      Filesize

      4.7MB

    • memory/1492-77-0x0000000000F10000-0x00000000013CD000-memory.dmp

      Filesize

      4.7MB

    • memory/1492-76-0x0000000000F10000-0x00000000013CD000-memory.dmp

      Filesize

      4.7MB

    • memory/1492-19-0x0000000000F10000-0x00000000013CD000-memory.dmp

      Filesize

      4.7MB

    • memory/1492-52-0x0000000000F10000-0x00000000013CD000-memory.dmp

      Filesize

      4.7MB

    • memory/1492-22-0x0000000004FA0000-0x0000000004FA1000-memory.dmp

      Filesize

      4KB

    • memory/1492-21-0x0000000004FB0000-0x0000000004FB1000-memory.dmp

      Filesize

      4KB

    • memory/1492-23-0x0000000004FE0000-0x0000000004FE1000-memory.dmp

      Filesize

      4KB

    • memory/1492-75-0x0000000000F10000-0x00000000013CD000-memory.dmp

      Filesize

      4.7MB

    • memory/1492-25-0x0000000004F90000-0x0000000004F91000-memory.dmp

      Filesize

      4KB

    • memory/1492-26-0x0000000005000000-0x0000000005001000-memory.dmp

      Filesize

      4KB

    • memory/1492-27-0x0000000000F10000-0x00000000013CD000-memory.dmp

      Filesize

      4.7MB

    • memory/1492-74-0x0000000000F10000-0x00000000013CD000-memory.dmp

      Filesize

      4.7MB

    • memory/1492-83-0x0000000000F10000-0x00000000013CD000-memory.dmp

      Filesize

      4.7MB

    • memory/1492-62-0x0000000000F10000-0x00000000013CD000-memory.dmp

      Filesize

      4.7MB

    • memory/1492-24-0x0000000004F80000-0x0000000004F81000-memory.dmp

      Filesize

      4KB

    • memory/3592-8-0x00000000050C0000-0x00000000050C1000-memory.dmp

      Filesize

      4KB

    • memory/3592-11-0x0000000005130000-0x0000000005131000-memory.dmp

      Filesize

      4KB

    • memory/3592-9-0x0000000005110000-0x0000000005111000-memory.dmp

      Filesize

      4KB

    • memory/3592-2-0x0000000000530000-0x00000000009ED000-memory.dmp

      Filesize

      4.7MB

    • memory/3592-7-0x00000000050B0000-0x00000000050B1000-memory.dmp

      Filesize

      4KB

    • memory/3592-6-0x0000000005120000-0x0000000005121000-memory.dmp

      Filesize

      4KB

    • memory/3592-0-0x0000000000530000-0x00000000009ED000-memory.dmp

      Filesize

      4.7MB

    • memory/3592-3-0x00000000050E0000-0x00000000050E1000-memory.dmp

      Filesize

      4KB

    • memory/3592-1-0x0000000077126000-0x0000000077128000-memory.dmp

      Filesize

      8KB

    • memory/3592-4-0x00000000050F0000-0x00000000050F1000-memory.dmp

      Filesize

      4KB

    • memory/3592-10-0x0000000005140000-0x0000000005141000-memory.dmp

      Filesize

      4KB

    • memory/3592-5-0x00000000050D0000-0x00000000050D1000-memory.dmp

      Filesize

      4KB

    • memory/3592-16-0x0000000000530000-0x00000000009ED000-memory.dmp

      Filesize

      4.7MB

    • memory/4760-50-0x000001CDF37E0000-0x000001CDF37F0000-memory.dmp

      Filesize

      64KB

    • memory/4760-49-0x00007FF868A90000-0x00007FF869552000-memory.dmp

      Filesize

      10.8MB

    • memory/4760-60-0x00007FF868A90000-0x00007FF869552000-memory.dmp

      Filesize

      10.8MB

    • memory/4760-54-0x000001CDF38E0000-0x000001CDF38EA000-memory.dmp

      Filesize

      40KB

    • memory/4760-46-0x000001CDF3900000-0x000001CDF3922000-memory.dmp

      Filesize

      136KB

    • memory/4760-53-0x000001CDF3970000-0x000001CDF3982000-memory.dmp

      Filesize

      72KB

    • memory/4760-51-0x000001CDF37E0000-0x000001CDF37F0000-memory.dmp

      Filesize

      64KB