Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240412-en
  • resource tags

    arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    20-04-2024 09:54

General

  • Target

    ad5bc10a37445f70d696ea6c02bd6faf0ee900b50f8efca5f56664d90c73fe87.exe

  • Size

    1.8MB

  • MD5

    3398b04eb8dbb7ef83640d4fac20f266

  • SHA1

    0da738182848763631044c26e74cf315d96e2c6a

  • SHA256

    ad5bc10a37445f70d696ea6c02bd6faf0ee900b50f8efca5f56664d90c73fe87

  • SHA512

    c0f3477a5b6d5eaef7043931cf9ac4e435922ddf1280f541d79d6d29587c9a1c1f5cc0f5f745131dfc6aad1967f9c0052d3d9135f73bae883c0c20c11451a3b5

  • SSDEEP

    49152:yNEk6rn4RpnLwLsbbUq5ypvFZSJYHzfkN6beuJM:Cyn4fbbUq5OnCUzfbI

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\ad5bc10a37445f70d696ea6c02bd6faf0ee900b50f8efca5f56664d90c73fe87.exe
    "C:\Users\Admin\AppData\Local\Temp\ad5bc10a37445f70d696ea6c02bd6faf0ee900b50f8efca5f56664d90c73fe87.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:1120
  • 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:3360
    • 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:2384
      • 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:1924
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:856
          • 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\263309122282_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3844
      • 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:1856

    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

      3398b04eb8dbb7ef83640d4fac20f266

      SHA1

      0da738182848763631044c26e74cf315d96e2c6a

      SHA256

      ad5bc10a37445f70d696ea6c02bd6faf0ee900b50f8efca5f56664d90c73fe87

      SHA512

      c0f3477a5b6d5eaef7043931cf9ac4e435922ddf1280f541d79d6d29587c9a1c1f5cc0f5f745131dfc6aad1967f9c0052d3d9135f73bae883c0c20c11451a3b5

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vgme5g2y.qge.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/1120-6-0x00000000050E0000-0x00000000050E1000-memory.dmp

      Filesize

      4KB

    • memory/1120-5-0x0000000005140000-0x0000000005141000-memory.dmp

      Filesize

      4KB

    • memory/1120-0-0x00000000002F0000-0x000000000078F000-memory.dmp

      Filesize

      4.6MB

    • memory/1120-7-0x00000000050F0000-0x00000000050F1000-memory.dmp

      Filesize

      4KB

    • memory/1120-8-0x0000000005170000-0x0000000005171000-memory.dmp

      Filesize

      4KB

    • memory/1120-9-0x0000000005160000-0x0000000005161000-memory.dmp

      Filesize

      4KB

    • memory/1120-14-0x00000000002F0000-0x000000000078F000-memory.dmp

      Filesize

      4.6MB

    • memory/1120-3-0x0000000005110000-0x0000000005111000-memory.dmp

      Filesize

      4KB

    • memory/1120-4-0x0000000005100000-0x0000000005101000-memory.dmp

      Filesize

      4KB

    • memory/1120-2-0x00000000002F0000-0x000000000078F000-memory.dmp

      Filesize

      4.6MB

    • memory/1120-1-0x0000000077576000-0x0000000077578000-memory.dmp

      Filesize

      8KB

    • memory/3360-27-0x0000000000890000-0x0000000000D2F000-memory.dmp

      Filesize

      4.6MB

    • memory/3360-75-0x0000000000890000-0x0000000000D2F000-memory.dmp

      Filesize

      4.6MB

    • memory/3360-22-0x0000000004BC0000-0x0000000004BC1000-memory.dmp

      Filesize

      4KB

    • memory/3360-23-0x0000000004B60000-0x0000000004B61000-memory.dmp

      Filesize

      4KB

    • memory/3360-24-0x0000000004B70000-0x0000000004B71000-memory.dmp

      Filesize

      4KB

    • memory/3360-25-0x0000000004BE0000-0x0000000004BE1000-memory.dmp

      Filesize

      4KB

    • memory/3360-26-0x0000000004BD0000-0x0000000004BD1000-memory.dmp

      Filesize

      4KB

    • memory/3360-21-0x0000000004B80000-0x0000000004B81000-memory.dmp

      Filesize

      4KB

    • memory/3360-28-0x0000000000890000-0x0000000000D2F000-memory.dmp

      Filesize

      4.6MB

    • memory/3360-29-0x0000000000890000-0x0000000000D2F000-memory.dmp

      Filesize

      4.6MB

    • memory/3360-20-0x0000000004BA0000-0x0000000004BA1000-memory.dmp

      Filesize

      4KB

    • memory/3360-82-0x0000000000890000-0x0000000000D2F000-memory.dmp

      Filesize

      4.6MB

    • memory/3360-18-0x0000000000890000-0x0000000000D2F000-memory.dmp

      Filesize

      4.6MB

    • memory/3360-81-0x0000000000890000-0x0000000000D2F000-memory.dmp

      Filesize

      4.6MB

    • memory/3360-80-0x0000000000890000-0x0000000000D2F000-memory.dmp

      Filesize

      4.6MB

    • memory/3360-79-0x0000000000890000-0x0000000000D2F000-memory.dmp

      Filesize

      4.6MB

    • memory/3360-78-0x0000000000890000-0x0000000000D2F000-memory.dmp

      Filesize

      4.6MB

    • memory/3360-77-0x0000000000890000-0x0000000000D2F000-memory.dmp

      Filesize

      4.6MB

    • memory/3360-76-0x0000000000890000-0x0000000000D2F000-memory.dmp

      Filesize

      4.6MB

    • memory/3360-62-0x0000000000890000-0x0000000000D2F000-memory.dmp

      Filesize

      4.6MB

    • memory/3360-17-0x0000000000890000-0x0000000000D2F000-memory.dmp

      Filesize

      4.6MB

    • memory/3360-74-0x0000000000890000-0x0000000000D2F000-memory.dmp

      Filesize

      4.6MB

    • memory/3360-19-0x0000000004B90000-0x0000000004B91000-memory.dmp

      Filesize

      4KB

    • memory/3844-61-0x00007FFEB2230000-0x00007FFEB2CF2000-memory.dmp

      Filesize

      10.8MB

    • memory/3844-55-0x0000020023540000-0x000002002354A000-memory.dmp

      Filesize

      40KB

    • memory/3844-54-0x0000020023560000-0x0000020023572000-memory.dmp

      Filesize

      72KB

    • memory/3844-53-0x00000200235A0000-0x00000200235B0000-memory.dmp

      Filesize

      64KB

    • memory/3844-52-0x00000200235A0000-0x00000200235B0000-memory.dmp

      Filesize

      64KB

    • memory/3844-51-0x00007FFEB2230000-0x00007FFEB2CF2000-memory.dmp

      Filesize

      10.8MB

    • memory/3844-44-0x00000200234B0000-0x00000200234D2000-memory.dmp

      Filesize

      136KB