Analysis

  • max time kernel
    142s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-04-2024 20:01

General

  • Target

    fd991242964f1d851fc1277658d40a357c87e2032d813ec86ad3503fd40d7db3.exe

  • Size

    1.8MB

  • MD5

    4f924d31ec92af6ef6250e7723f098e0

  • SHA1

    f3c6119a04b8266d3b13363f5bb82c4190a5f626

  • SHA256

    fd991242964f1d851fc1277658d40a357c87e2032d813ec86ad3503fd40d7db3

  • SHA512

    ec27b19fff72acec46a49c6c3043c1d8ea34c8b00891656bafab46ff2ea6aad7c4a4c7aeb8f592e796106a977ef48939826512ccc6c227e7fc5eca79aa9faa63

  • SSDEEP

    24576:Uj4nOe4ELs64tQaGkM72fJyFzdnhxln+XoTwzZfy4iwRqf1atqzfry7q0D3VB4:U8Pps6cdM72fJwhx5+nzVysmaqzjURB

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

Extracted

Family

xehook

C2

https://unotree.ru/

https://aiwhcpoaw.ru/

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • Detect Xehook Payload 3 IoCs
  • Xehook stealer

    Xehook is an infostealer written in C#.

  • 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 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 1 IoCs
  • 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).

  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fd991242964f1d851fc1277658d40a357c87e2032d813ec86ad3503fd40d7db3.exe
    "C:\Users\Admin\AppData\Local\Temp\fd991242964f1d851fc1277658d40a357c87e2032d813ec86ad3503fd40d7db3.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:2844
  • 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:116
    • C:\Users\Admin\AppData\Local\Temp\1000193001\dirtquire.exe
      "C:\Users\Admin\AppData\Local\Temp\1000193001\dirtquire.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2444
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        3⤵
          PID:1380
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          3⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1040
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command "Start-Process 'C:\Users\Admin\AppData\Roaming\RQAAIXIK4M.exe'"
            4⤵
            • Drops file in System32 directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2768
      • 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:3164
        • 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:2420
          • C:\Windows\system32\netsh.exe
            netsh wlan show profiles
            4⤵
              PID:456
            • 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\288054676187_Desktop.zip' -CompressionLevel Optimal
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:4960
        • 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:2532

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        18KB

        MD5

        bc8a940db32e53105696d2da3ced6795

        SHA1

        e55d7705ac3c1030f4d6eb0ee908e56393ae3f8a

        SHA256

        e079ffb584a6f7be041d61ec873c6391602bcc2210c4958dca19fcf8fcea36bd

        SHA512

        5d8a4f32903635046a1a9dac88022ef543b3b1e6f46f94ec80758e6cc23020dff1734277a184e3316a7544658accf822abc9c482d50877b95ad71c46702a18c3

      • C:\Users\Admin\AppData\Local\Temp\1000193001\dirtquire.exe

        Filesize

        273KB

        MD5

        e795115169cc800de0392d6a675d58fd

        SHA1

        8dd75837e360ba1cb8acf5a3d348dd020a5da482

        SHA256

        17f929c1d40a7fd6f897c0b15ca9c44b2059cbccb3037c31619d87954659478e

        SHA512

        5fb6543e91de175bd365462a1cc87d6772e43b0effd3757b3e408b08a4de5a004de9a85e7f1d09578fa3bc6b6486c5f5016c1b879496582dbb39b2e62e168f38

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

        Filesize

        1.8MB

        MD5

        4f924d31ec92af6ef6250e7723f098e0

        SHA1

        f3c6119a04b8266d3b13363f5bb82c4190a5f626

        SHA256

        fd991242964f1d851fc1277658d40a357c87e2032d813ec86ad3503fd40d7db3

        SHA512

        ec27b19fff72acec46a49c6c3043c1d8ea34c8b00891656bafab46ff2ea6aad7c4a4c7aeb8f592e796106a977ef48939826512ccc6c227e7fc5eca79aa9faa63

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yrd4umbr.cdx.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Roaming\RQAAIXIK4M.exe

        Filesize

        65KB

        MD5

        09810294805f38480245f9bdf38a6b78

        SHA1

        a6a0143ad9251d49c086afd8f6ec0a6e7fb737cf

        SHA256

        3bfbdfd525c485a6c3e0f63ffaa9f3b877b43d219f1a79656f9bd2007c5bee00

        SHA512

        6a612e02a3c9c6adb245f5d0092051ce2a7936cf40c961d503b9f7e922ffcca051c6dac08a36b8fa5af2ffd21b5986cde23ffc80508931a2e9ed78221468d98b

      • 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/116-87-0x0000000000060000-0x0000000000512000-memory.dmp

        Filesize

        4.7MB

      • memory/116-25-0x0000000004B70000-0x0000000004B71000-memory.dmp

        Filesize

        4KB

      • memory/116-139-0x0000000000060000-0x0000000000512000-memory.dmp

        Filesize

        4.7MB

      • memory/116-138-0x0000000000060000-0x0000000000512000-memory.dmp

        Filesize

        4.7MB

      • memory/116-136-0x0000000000060000-0x0000000000512000-memory.dmp

        Filesize

        4.7MB

      • memory/116-135-0x0000000000060000-0x0000000000512000-memory.dmp

        Filesize

        4.7MB

      • memory/116-18-0x0000000000060000-0x0000000000512000-memory.dmp

        Filesize

        4.7MB

      • memory/116-123-0x0000000000060000-0x0000000000512000-memory.dmp

        Filesize

        4.7MB

      • memory/116-20-0x0000000004B90000-0x0000000004B91000-memory.dmp

        Filesize

        4KB

      • memory/116-21-0x0000000004BA0000-0x0000000004BA1000-memory.dmp

        Filesize

        4KB

      • memory/116-23-0x0000000004BC0000-0x0000000004BC1000-memory.dmp

        Filesize

        4KB

      • memory/116-22-0x0000000004B80000-0x0000000004B81000-memory.dmp

        Filesize

        4KB

      • memory/116-24-0x0000000004B60000-0x0000000004B61000-memory.dmp

        Filesize

        4KB

      • memory/116-63-0x0000000000060000-0x0000000000512000-memory.dmp

        Filesize

        4.7MB

      • memory/116-26-0x0000000004BE0000-0x0000000004BE1000-memory.dmp

        Filesize

        4KB

      • memory/116-86-0x0000000000060000-0x0000000000512000-memory.dmp

        Filesize

        4.7MB

      • memory/116-19-0x0000000000060000-0x0000000000512000-memory.dmp

        Filesize

        4.7MB

      • memory/116-52-0x0000000000060000-0x0000000000512000-memory.dmp

        Filesize

        4.7MB

      • memory/116-137-0x0000000000060000-0x0000000000512000-memory.dmp

        Filesize

        4.7MB

      • memory/1040-46-0x0000000072930000-0x00000000730E0000-memory.dmp

        Filesize

        7.7MB

      • memory/1040-47-0x00000000053A0000-0x0000000005944000-memory.dmp

        Filesize

        5.6MB

      • memory/1040-48-0x0000000004F90000-0x0000000004FA0000-memory.dmp

        Filesize

        64KB

      • memory/1040-49-0x0000000005D80000-0x0000000005DE6000-memory.dmp

        Filesize

        408KB

      • memory/1040-50-0x00000000063B0000-0x0000000006442000-memory.dmp

        Filesize

        584KB

      • memory/1040-44-0x0000000000400000-0x000000000041C000-memory.dmp

        Filesize

        112KB

      • memory/1040-57-0x0000000072930000-0x00000000730E0000-memory.dmp

        Filesize

        7.7MB

      • memory/2444-43-0x0000000000B10000-0x0000000000B58000-memory.dmp

        Filesize

        288KB

      • memory/2444-45-0x0000000000B10000-0x0000000000B58000-memory.dmp

        Filesize

        288KB

      • memory/2768-67-0x0000000005A70000-0x0000000005DC4000-memory.dmp

        Filesize

        3.3MB

      • memory/2768-60-0x0000000002B90000-0x0000000002BC6000-memory.dmp

        Filesize

        216KB

      • memory/2768-66-0x0000000005990000-0x00000000059F6000-memory.dmp

        Filesize

        408KB

      • memory/2768-62-0x00000000026F0000-0x0000000002700000-memory.dmp

        Filesize

        64KB

      • memory/2768-65-0x00000000058F0000-0x0000000005912000-memory.dmp

        Filesize

        136KB

      • memory/2768-85-0x0000000072AD0000-0x0000000073280000-memory.dmp

        Filesize

        7.7MB

      • memory/2768-64-0x0000000005250000-0x0000000005878000-memory.dmp

        Filesize

        6.2MB

      • memory/2768-77-0x0000000006020000-0x000000000603E000-memory.dmp

        Filesize

        120KB

      • memory/2768-78-0x0000000006050000-0x000000000609C000-memory.dmp

        Filesize

        304KB

      • memory/2768-79-0x0000000007220000-0x00000000072B6000-memory.dmp

        Filesize

        600KB

      • memory/2768-80-0x00000000064F0000-0x000000000650A000-memory.dmp

        Filesize

        104KB

      • memory/2768-81-0x0000000006560000-0x0000000006582000-memory.dmp

        Filesize

        136KB

      • memory/2768-61-0x0000000072AD0000-0x0000000073280000-memory.dmp

        Filesize

        7.7MB

      • memory/2844-0-0x0000000000A60000-0x0000000000F12000-memory.dmp

        Filesize

        4.7MB

      • memory/2844-5-0x00000000054E0000-0x00000000054E1000-memory.dmp

        Filesize

        4KB

      • memory/2844-4-0x0000000005500000-0x0000000005501000-memory.dmp

        Filesize

        4KB

      • memory/2844-3-0x00000000054F0000-0x00000000054F1000-memory.dmp

        Filesize

        4KB

      • memory/2844-9-0x0000000005550000-0x0000000005551000-memory.dmp

        Filesize

        4KB

      • memory/2844-6-0x0000000005520000-0x0000000005521000-memory.dmp

        Filesize

        4KB

      • memory/2844-10-0x0000000005540000-0x0000000005541000-memory.dmp

        Filesize

        4KB

      • memory/2844-8-0x00000000054D0000-0x00000000054D1000-memory.dmp

        Filesize

        4KB

      • memory/2844-2-0x0000000000A60000-0x0000000000F12000-memory.dmp

        Filesize

        4.7MB

      • memory/2844-15-0x0000000000A60000-0x0000000000F12000-memory.dmp

        Filesize

        4.7MB

      • memory/2844-7-0x00000000054C0000-0x00000000054C1000-memory.dmp

        Filesize

        4KB

      • memory/2844-1-0x0000000077064000-0x0000000077066000-memory.dmp

        Filesize

        8KB

      • memory/4960-110-0x00007FFC45AF0000-0x00007FFC465B1000-memory.dmp

        Filesize

        10.8MB

      • memory/4960-122-0x00007FFC45AF0000-0x00007FFC465B1000-memory.dmp

        Filesize

        10.8MB

      • memory/4960-116-0x0000029DD8970000-0x0000029DD897A000-memory.dmp

        Filesize

        40KB

      • memory/4960-115-0x0000029DD8EE0000-0x0000029DD8EF2000-memory.dmp

        Filesize

        72KB

      • memory/4960-114-0x0000029DD8980000-0x0000029DD8990000-memory.dmp

        Filesize

        64KB

      • memory/4960-112-0x0000029DD8980000-0x0000029DD8990000-memory.dmp

        Filesize

        64KB

      • memory/4960-111-0x0000029DD8980000-0x0000029DD8990000-memory.dmp

        Filesize

        64KB

      • memory/4960-100-0x0000029DD8940000-0x0000029DD8962000-memory.dmp

        Filesize

        136KB