Analysis

  • max time kernel
    143s
  • 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 14:03

General

  • Target

    2f5917ccb45f156a78bc3a1eefc856625d4f3ec67425505c9a06f0b3f73f1ff0.exe

  • Size

    1.9MB

  • MD5

    778983edcb3b563b4230fea2ec71d543

  • SHA1

    5580055c66dc90c9eccbd1b253cd5f044dc81fa9

  • SHA256

    2f5917ccb45f156a78bc3a1eefc856625d4f3ec67425505c9a06f0b3f73f1ff0

  • SHA512

    ef01dacde286fb7871dbeca41d6ea86178305aa542b3fe5737362a1bc48184322a4a2c45da250897cc85a716f9f809c00f5ab0a90386e2b47642a39dd54165c9

  • SSDEEP

    49152:I0pKuYU3CqYKsYzig8p5kjuxMKRpj0gqVfaUssY:FpKuYUycscitp5k69ggEfaUss

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\2f5917ccb45f156a78bc3a1eefc856625d4f3ec67425505c9a06f0b3f73f1ff0.exe
    "C:\Users\Admin\AppData\Local\Temp\2f5917ccb45f156a78bc3a1eefc856625d4f3ec67425505c9a06f0b3f73f1ff0.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:2024
  • 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:2364
    • 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:1040
      • 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:4568
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:2804
          • 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\777591257247_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4636
      • 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:1376

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      1.9MB

      MD5

      778983edcb3b563b4230fea2ec71d543

      SHA1

      5580055c66dc90c9eccbd1b253cd5f044dc81fa9

      SHA256

      2f5917ccb45f156a78bc3a1eefc856625d4f3ec67425505c9a06f0b3f73f1ff0

      SHA512

      ef01dacde286fb7871dbeca41d6ea86178305aa542b3fe5737362a1bc48184322a4a2c45da250897cc85a716f9f809c00f5ab0a90386e2b47642a39dd54165c9

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_z4w3faz2.fh3.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/2024-7-0x0000000005750000-0x0000000005751000-memory.dmp

      Filesize

      4KB

    • memory/2024-6-0x00000000057C0000-0x00000000057C1000-memory.dmp

      Filesize

      4KB

    • memory/2024-8-0x0000000005760000-0x0000000005761000-memory.dmp

      Filesize

      4KB

    • memory/2024-5-0x0000000005770000-0x0000000005771000-memory.dmp

      Filesize

      4KB

    • memory/2024-0-0x0000000000CC0000-0x00000000011A2000-memory.dmp

      Filesize

      4.9MB

    • memory/2024-9-0x00000000057B0000-0x00000000057B1000-memory.dmp

      Filesize

      4KB

    • memory/2024-10-0x00000000057E0000-0x00000000057E1000-memory.dmp

      Filesize

      4KB

    • memory/2024-11-0x00000000057D0000-0x00000000057D1000-memory.dmp

      Filesize

      4KB

    • memory/2024-16-0x0000000000CC0000-0x00000000011A2000-memory.dmp

      Filesize

      4.9MB

    • memory/2024-4-0x0000000005790000-0x0000000005791000-memory.dmp

      Filesize

      4KB

    • memory/2024-3-0x0000000005780000-0x0000000005781000-memory.dmp

      Filesize

      4KB

    • memory/2024-2-0x0000000000CC0000-0x00000000011A2000-memory.dmp

      Filesize

      4.9MB

    • memory/2024-1-0x0000000077706000-0x0000000077708000-memory.dmp

      Filesize

      8KB

    • memory/2364-29-0x0000000005710000-0x0000000005711000-memory.dmp

      Filesize

      4KB

    • memory/2364-55-0x0000000000C00000-0x00000000010E2000-memory.dmp

      Filesize

      4.9MB

    • memory/2364-24-0x0000000005700000-0x0000000005701000-memory.dmp

      Filesize

      4KB

    • memory/2364-25-0x0000000005690000-0x0000000005691000-memory.dmp

      Filesize

      4KB

    • memory/2364-26-0x00000000056A0000-0x00000000056A1000-memory.dmp

      Filesize

      4KB

    • memory/2364-27-0x00000000056F0000-0x00000000056F1000-memory.dmp

      Filesize

      4KB

    • memory/2364-28-0x0000000005720000-0x0000000005721000-memory.dmp

      Filesize

      4KB

    • memory/2364-23-0x00000000056B0000-0x00000000056B1000-memory.dmp

      Filesize

      4KB

    • memory/2364-30-0x0000000000C00000-0x00000000010E2000-memory.dmp

      Filesize

      4.9MB

    • memory/2364-22-0x00000000056D0000-0x00000000056D1000-memory.dmp

      Filesize

      4KB

    • memory/2364-20-0x0000000000C00000-0x00000000010E2000-memory.dmp

      Filesize

      4.9MB

    • memory/2364-86-0x0000000000C00000-0x00000000010E2000-memory.dmp

      Filesize

      4.9MB

    • memory/2364-85-0x0000000000C00000-0x00000000010E2000-memory.dmp

      Filesize

      4.9MB

    • memory/2364-84-0x0000000000C00000-0x00000000010E2000-memory.dmp

      Filesize

      4.9MB

    • memory/2364-83-0x0000000000C00000-0x00000000010E2000-memory.dmp

      Filesize

      4.9MB

    • memory/2364-21-0x00000000056C0000-0x00000000056C1000-memory.dmp

      Filesize

      4KB

    • memory/2364-82-0x0000000000C00000-0x00000000010E2000-memory.dmp

      Filesize

      4.9MB

    • memory/2364-81-0x0000000000C00000-0x00000000010E2000-memory.dmp

      Filesize

      4.9MB

    • memory/2364-80-0x0000000000C00000-0x00000000010E2000-memory.dmp

      Filesize

      4.9MB

    • memory/2364-79-0x0000000000C00000-0x00000000010E2000-memory.dmp

      Filesize

      4.9MB

    • memory/2364-65-0x0000000000C00000-0x00000000010E2000-memory.dmp

      Filesize

      4.9MB

    • memory/2364-66-0x0000000000C00000-0x00000000010E2000-memory.dmp

      Filesize

      4.9MB

    • memory/2364-19-0x0000000000C00000-0x00000000010E2000-memory.dmp

      Filesize

      4.9MB

    • memory/2364-78-0x0000000000C00000-0x00000000010E2000-memory.dmp

      Filesize

      4.9MB

    • memory/4636-64-0x00007FFCF6850000-0x00007FFCF7312000-memory.dmp

      Filesize

      10.8MB

    • memory/4636-58-0x0000024877F50000-0x0000024877F5A000-memory.dmp

      Filesize

      40KB

    • memory/4636-57-0x0000024878300000-0x0000024878312000-memory.dmp

      Filesize

      72KB

    • memory/4636-56-0x0000024877EA0000-0x0000024877EB0000-memory.dmp

      Filesize

      64KB

    • memory/4636-54-0x0000024877EA0000-0x0000024877EB0000-memory.dmp

      Filesize

      64KB

    • memory/4636-53-0x0000024877EA0000-0x0000024877EB0000-memory.dmp

      Filesize

      64KB

    • memory/4636-52-0x00007FFCF6850000-0x00007FFCF7312000-memory.dmp

      Filesize

      10.8MB

    • memory/4636-43-0x0000024877EE0000-0x0000024877F02000-memory.dmp

      Filesize

      136KB