Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240412-en
  • resource tags

    arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    24-04-2024 15:00

General

  • Target

    bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e.exe

  • Size

    1.8MB

  • MD5

    e119707d9974ec7abaf1377311b6a879

  • SHA1

    0a6934f4d046e3d51834963a72939fd830dfa6f7

  • SHA256

    bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e

  • SHA512

    9491d1f34958083da1c7a653b1e695dfdb0317b96e3518b731389dd74c76ac184c8a08aca45cf3481566459804b0bfec5a00e1056fe53bdabab2f636c11baf3e

  • SSDEEP

    49152:0rdSFprPKzieoh6+OTAhVEElM7aFtVSh:0MCzieoHOcVEEe7aFvc

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 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 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
  • 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).

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e.exe
    "C:\Users\Admin\AppData\Local\Temp\bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e.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:5728
  • 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:5796
    • C:\Users\Admin\AppData\Local\Temp\1000147001\swiiiii.exe
      "C:\Users\Admin\AppData\Local\Temp\1000147001\swiiiii.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:5180
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        3⤵
          PID:5512
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          3⤵
            PID:5760
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 5180 -s 896
            3⤵
            • Program crash
            PID:6088
        • 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:316
          • 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:3836
            • C:\Windows\system32\netsh.exe
              netsh wlan show profiles
              4⤵
                PID:964
              • 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:3292
          • 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:3900
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 180 -p 5180 -ip 5180
          1⤵
            PID:996

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\1000147001\swiiiii.exe

            Filesize

            321KB

            MD5

            1c7d0f34bb1d85b5d2c01367cc8f62ef

            SHA1

            33aedadb5361f1646cffd68791d72ba5f1424114

            SHA256

            e9e09c5e5d03d21fca820bd9b0a0ea7b86ab9e85cdc9996f8f1dc822b0cc801c

            SHA512

            53bf85d2b004f69bbbf7b6dc78e5f021aba71b6f814101c55d3bf76e6d058a973bc58270b6b621b2100c6e02d382f568d1e96024464e8ea81e6db8ccd948679d

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

            Filesize

            1.8MB

            MD5

            e119707d9974ec7abaf1377311b6a879

            SHA1

            0a6934f4d046e3d51834963a72939fd830dfa6f7

            SHA256

            bd38fcc22716f89ba7927e39050baf1419db36386b16972b60555aa57ab0014e

            SHA512

            9491d1f34958083da1c7a653b1e695dfdb0317b96e3518b731389dd74c76ac184c8a08aca45cf3481566459804b0bfec5a00e1056fe53bdabab2f636c11baf3e

          • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_l4jblf2u.bn4.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/3292-94-0x000001F2288E0000-0x000001F2288EA000-memory.dmp

            Filesize

            40KB

          • memory/3292-93-0x000001F228C20000-0x000001F228C32000-memory.dmp

            Filesize

            72KB

          • memory/3292-82-0x000001F210240000-0x000001F210262000-memory.dmp

            Filesize

            136KB

          • memory/3292-90-0x00007FF8B2E10000-0x00007FF8B38D2000-memory.dmp

            Filesize

            10.8MB

          • memory/3292-91-0x000001F228910000-0x000001F228920000-memory.dmp

            Filesize

            64KB

          • memory/3292-92-0x000001F228910000-0x000001F228920000-memory.dmp

            Filesize

            64KB

          • memory/3292-100-0x00007FF8B2E10000-0x00007FF8B38D2000-memory.dmp

            Filesize

            10.8MB

          • memory/5180-57-0x0000000002920000-0x0000000004920000-memory.dmp

            Filesize

            32.0MB

          • memory/5180-50-0x00000000732E0000-0x0000000073A91000-memory.dmp

            Filesize

            7.7MB

          • memory/5180-49-0x0000000000430000-0x0000000000482000-memory.dmp

            Filesize

            328KB

          • memory/5180-61-0x00000000732E0000-0x0000000073A91000-memory.dmp

            Filesize

            7.7MB

          • memory/5728-5-0x0000000005380000-0x0000000005381000-memory.dmp

            Filesize

            4KB

          • memory/5728-2-0x00000000007B0000-0x0000000000C7A000-memory.dmp

            Filesize

            4.8MB

          • memory/5728-4-0x00000000053A0000-0x00000000053A1000-memory.dmp

            Filesize

            4KB

          • memory/5728-0-0x00000000007B0000-0x0000000000C7A000-memory.dmp

            Filesize

            4.8MB

          • memory/5728-6-0x0000000005360000-0x0000000005361000-memory.dmp

            Filesize

            4KB

          • memory/5728-3-0x0000000005390000-0x0000000005391000-memory.dmp

            Filesize

            4KB

          • memory/5728-15-0x00000000007B0000-0x0000000000C7A000-memory.dmp

            Filesize

            4.8MB

          • memory/5728-7-0x0000000005370000-0x0000000005371000-memory.dmp

            Filesize

            4KB

          • memory/5728-1-0x0000000077926000-0x0000000077928000-memory.dmp

            Filesize

            8KB

          • memory/5728-9-0x00000000053F0000-0x00000000053F1000-memory.dmp

            Filesize

            4KB

          • memory/5728-10-0x00000000053E0000-0x00000000053E1000-memory.dmp

            Filesize

            4KB

          • memory/5728-8-0x00000000053C0000-0x00000000053C1000-memory.dmp

            Filesize

            4KB

          • memory/5760-53-0x0000000000400000-0x000000000044C000-memory.dmp

            Filesize

            304KB

          • memory/5760-56-0x0000000000400000-0x000000000044C000-memory.dmp

            Filesize

            304KB

          • memory/5760-60-0x0000000000400000-0x000000000044C000-memory.dmp

            Filesize

            304KB

          • memory/5760-58-0x0000000000F20000-0x0000000000F21000-memory.dmp

            Filesize

            4KB

          • memory/5796-18-0x00000000003D0000-0x000000000089A000-memory.dmp

            Filesize

            4.8MB

          • memory/5796-59-0x00000000003D0000-0x000000000089A000-memory.dmp

            Filesize

            4.8MB

          • memory/5796-48-0x00000000003D0000-0x000000000089A000-memory.dmp

            Filesize

            4.8MB

          • memory/5796-62-0x00000000003D0000-0x000000000089A000-memory.dmp

            Filesize

            4.8MB

          • memory/5796-63-0x00000000003D0000-0x000000000089A000-memory.dmp

            Filesize

            4.8MB

          • memory/5796-64-0x00000000003D0000-0x000000000089A000-memory.dmp

            Filesize

            4.8MB

          • memory/5796-65-0x00000000003D0000-0x000000000089A000-memory.dmp

            Filesize

            4.8MB

          • memory/5796-66-0x00000000003D0000-0x000000000089A000-memory.dmp

            Filesize

            4.8MB

          • memory/5796-67-0x00000000003D0000-0x000000000089A000-memory.dmp

            Filesize

            4.8MB

          • memory/5796-68-0x00000000003D0000-0x000000000089A000-memory.dmp

            Filesize

            4.8MB

          • memory/5796-28-0x00000000003D0000-0x000000000089A000-memory.dmp

            Filesize

            4.8MB

          • memory/5796-27-0x0000000004E00000-0x0000000004E01000-memory.dmp

            Filesize

            4KB

          • memory/5796-26-0x0000000004E10000-0x0000000004E11000-memory.dmp

            Filesize

            4KB

          • memory/5796-22-0x0000000004DA0000-0x0000000004DA1000-memory.dmp

            Filesize

            4KB

          • memory/5796-25-0x0000000004D90000-0x0000000004D91000-memory.dmp

            Filesize

            4KB

          • memory/5796-23-0x0000000004DE0000-0x0000000004DE1000-memory.dmp

            Filesize

            4KB

          • memory/5796-24-0x0000000004D80000-0x0000000004D81000-memory.dmp

            Filesize

            4KB

          • memory/5796-20-0x0000000004DB0000-0x0000000004DB1000-memory.dmp

            Filesize

            4KB

          • memory/5796-21-0x0000000004DC0000-0x0000000004DC1000-memory.dmp

            Filesize

            4KB

          • memory/5796-101-0x00000000003D0000-0x000000000089A000-memory.dmp

            Filesize

            4.8MB

          • memory/5796-19-0x00000000003D0000-0x000000000089A000-memory.dmp

            Filesize

            4.8MB