Analysis

  • max time kernel
    160s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-04-2024 09:32

General

  • Target

    ac2ca48033d469f2755c5b4a3ad95d2300b72db8bd7cea159b2ecb7320ffdf1c.exe

  • Size

    1.8MB

  • MD5

    412c5e658b2c6220de841b56d99f7070

  • SHA1

    7703ebf4a6f8b055b7c8c1c9dca62d76cac12939

  • SHA256

    ac2ca48033d469f2755c5b4a3ad95d2300b72db8bd7cea159b2ecb7320ffdf1c

  • SHA512

    0ab8d5ebe4594b2e523af290e48579f3f49f685af6b41c54abb6002fd4af44d705b088b154dd656c31f7039bf872604b4f79a75403ed7b8659bd7f9c912a1065

  • SSDEEP

    24576:uJ280G7S9gGBwO5JE6qZAxxBp1lJLEoUe+BejVDZAVA0jaFd6t/qRoxt1+iqWsz:u080Gv2nJloED3/+KVDCVnwd6t7h3

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\ac2ca48033d469f2755c5b4a3ad95d2300b72db8bd7cea159b2ecb7320ffdf1c.exe
    "C:\Users\Admin\AppData\Local\Temp\ac2ca48033d469f2755c5b4a3ad95d2300b72db8bd7cea159b2ecb7320ffdf1c.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:1592
  • 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:4148
    • 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:2684
      • 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:3832
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:1128
          • 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\230272463368_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3104
      • 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:3140

    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

      412c5e658b2c6220de841b56d99f7070

      SHA1

      7703ebf4a6f8b055b7c8c1c9dca62d76cac12939

      SHA256

      ac2ca48033d469f2755c5b4a3ad95d2300b72db8bd7cea159b2ecb7320ffdf1c

      SHA512

      0ab8d5ebe4594b2e523af290e48579f3f49f685af6b41c54abb6002fd4af44d705b088b154dd656c31f7039bf872604b4f79a75403ed7b8659bd7f9c912a1065

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tqlrgtqj.aqc.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/1592-6-0x00000000053F0000-0x00000000053F1000-memory.dmp

      Filesize

      4KB

    • memory/1592-4-0x0000000005410000-0x0000000005411000-memory.dmp

      Filesize

      4KB

    • memory/1592-0-0x00000000007C0000-0x0000000000C8E000-memory.dmp

      Filesize

      4.8MB

    • memory/1592-7-0x0000000005400000-0x0000000005401000-memory.dmp

      Filesize

      4KB

    • memory/1592-8-0x0000000005430000-0x0000000005431000-memory.dmp

      Filesize

      4KB

    • memory/1592-10-0x0000000005470000-0x0000000005471000-memory.dmp

      Filesize

      4KB

    • memory/1592-9-0x0000000005480000-0x0000000005481000-memory.dmp

      Filesize

      4KB

    • memory/1592-12-0x00000000007C0000-0x0000000000C8E000-memory.dmp

      Filesize

      4.8MB

    • memory/1592-3-0x0000000005420000-0x0000000005421000-memory.dmp

      Filesize

      4KB

    • memory/1592-5-0x0000000005450000-0x0000000005451000-memory.dmp

      Filesize

      4KB

    • memory/1592-16-0x00000000007C0000-0x0000000000C8E000-memory.dmp

      Filesize

      4.8MB

    • memory/1592-1-0x0000000076F04000-0x0000000076F06000-memory.dmp

      Filesize

      8KB

    • memory/1592-2-0x00000000007C0000-0x0000000000C8E000-memory.dmp

      Filesize

      4.8MB

    • memory/3104-57-0x0000026B4E980000-0x0000026B4E992000-memory.dmp

      Filesize

      72KB

    • memory/3104-55-0x0000026B34500000-0x0000026B34510000-memory.dmp

      Filesize

      64KB

    • memory/3104-56-0x0000026B34500000-0x0000026B34510000-memory.dmp

      Filesize

      64KB

    • memory/3104-54-0x00007FFE98DE0000-0x00007FFE998A1000-memory.dmp

      Filesize

      10.8MB

    • memory/3104-44-0x0000026B4E7F0000-0x0000026B4E812000-memory.dmp

      Filesize

      136KB

    • memory/3104-58-0x0000026B4E960000-0x0000026B4E96A000-memory.dmp

      Filesize

      40KB

    • memory/3104-64-0x00007FFE98DE0000-0x00007FFE998A1000-memory.dmp

      Filesize

      10.8MB

    • memory/4148-29-0x00000000056F0000-0x00000000056F1000-memory.dmp

      Filesize

      4KB

    • memory/4148-19-0x0000000000CC0000-0x000000000118E000-memory.dmp

      Filesize

      4.8MB

    • memory/4148-28-0x0000000005700000-0x0000000005701000-memory.dmp

      Filesize

      4KB

    • memory/4148-43-0x0000000000CC0000-0x000000000118E000-memory.dmp

      Filesize

      4.8MB

    • memory/4148-27-0x00000000056D0000-0x00000000056D1000-memory.dmp

      Filesize

      4KB

    • memory/4148-25-0x0000000005670000-0x0000000005671000-memory.dmp

      Filesize

      4KB

    • memory/4148-26-0x0000000005680000-0x0000000005681000-memory.dmp

      Filesize

      4KB

    • memory/4148-24-0x00000000056E0000-0x00000000056E1000-memory.dmp

      Filesize

      4KB

    • memory/4148-23-0x0000000005690000-0x0000000005691000-memory.dmp

      Filesize

      4KB

    • memory/4148-21-0x00000000056A0000-0x00000000056A1000-memory.dmp

      Filesize

      4KB

    • memory/4148-22-0x00000000056B0000-0x00000000056B1000-memory.dmp

      Filesize

      4KB

    • memory/4148-20-0x0000000000CC0000-0x000000000118E000-memory.dmp

      Filesize

      4.8MB

    • memory/4148-65-0x0000000000CC0000-0x000000000118E000-memory.dmp

      Filesize

      4.8MB

    • memory/4148-30-0x0000000000CC0000-0x000000000118E000-memory.dmp

      Filesize

      4.8MB

    • memory/4148-77-0x0000000000CC0000-0x000000000118E000-memory.dmp

      Filesize

      4.8MB

    • memory/4148-78-0x0000000000CC0000-0x000000000118E000-memory.dmp

      Filesize

      4.8MB

    • memory/4148-79-0x0000000000CC0000-0x000000000118E000-memory.dmp

      Filesize

      4.8MB

    • memory/4148-80-0x0000000000CC0000-0x000000000118E000-memory.dmp

      Filesize

      4.8MB

    • memory/4148-81-0x0000000000CC0000-0x000000000118E000-memory.dmp

      Filesize

      4.8MB

    • memory/4148-82-0x0000000000CC0000-0x000000000118E000-memory.dmp

      Filesize

      4.8MB

    • memory/4148-83-0x0000000000CC0000-0x000000000118E000-memory.dmp

      Filesize

      4.8MB

    • memory/4148-84-0x0000000000CC0000-0x000000000118E000-memory.dmp

      Filesize

      4.8MB

    • memory/4148-85-0x0000000000CC0000-0x000000000118E000-memory.dmp

      Filesize

      4.8MB

    • memory/4148-86-0x0000000000CC0000-0x000000000118E000-memory.dmp

      Filesize

      4.8MB

    • memory/4148-87-0x0000000000CC0000-0x000000000118E000-memory.dmp

      Filesize

      4.8MB