Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/03/2024, 02:14

General

  • Target
    4404db31fa92a0ed3c3f8578f3f1d3992428f84b5b5aba4572acd39d194e8a22.exe
  • Size 1.8MB
  • Sample240328-cpakpsda3y
  • SHA256 4404db31fa92a0ed3c3f8578f3f1d3992428f84b5b5aba4572acd39d194e8a22
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • amadey

Version
  • 4.17

C2
  • http://185.215.113.32

Attributes
  • install_dir

    00c07260dc

  • install_file

    explorgu.exe

  • strings_key

    461809bd97c251ba0c0c8450c7055f1d

  • url_paths

    /yandex/index.php

rc4.plain

Extracted

Family
  • amadey

Version
  • 4.17

C2
  • http://185.215.113.32

Attributes
  • strings_key

    461809bd97c251ba0c0c8450c7055f1d

  • url_paths

    /yandex/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\4404db31fa92a0ed3c3f8578f3f1d3992428f84b5b5aba4572acd39d194e8a22.exe
    "C:\Users\Admin\AppData\Local\Temp\4404db31fa92a0ed3c3f8578f3f1d3992428f84b5b5aba4572acd39d194e8a22.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:3892
  • C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe
    C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.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:3460
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2528
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3828
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:4472
          • 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\808065738166_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1388
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dll, Main
        2⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        PID:3604
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4160 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:4572

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            explorgu.exe

            • Path C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe
            • Size 1.3MB
            • SHA256 e65370bbea636eef8c896cbbd13796f139af910c9e0e156d17ddaa75d00592e1
            • MD5 SHA1 SHA512 SSDEEP

            explorgu.exe

            • Path C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe
            • Size 1.2MB
            • SHA256 dcdb1f54e1e231aa7f039c9bb0b261f54c70f07064a62a1084c3047697b108cf
            • MD5 SHA1 SHA512 SSDEEP

            __PSScriptPolicyTest_gtdjwxma.r2g.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gtdjwxma.r2g.ps1
            • Size 60B
            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
            • MD5 SHA1 SHA512

            clip64.dll

            • Path C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dll
            • Size 109KB
            • SHA256 8d31b39170909595b518b1a03e9ec950540fabd545ed14817cac5c84b91599ee
            • MD5 SHA1 SHA512 SSDEEP

            cred64.dll

            • Path C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll
            • Size 1.2MB
            • SHA256 b4588feacc183cd5a089f9bb950827b75df04bd5a6e67c95ff258e4a34aa0d72
            • MD5 SHA1 SHA512 SSDEEP

            cred64.dll

            • Path C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll
            • Size 1.1MB
            • SHA256 4b11966fe30d57794ca430135eb1729c9d0e5d552e86198d70e71a3723b1fa56
            • MD5 SHA1 SHA512 SSDEEP

            memory/1388-63-0x00007FFC3B8F0000-0x00007FFC3C3B1000-memory.dmp

            memory/1388-42-0x0000026D62AC0000-0x0000026D62AE2000-memory.dmp

            memory/1388-57-0x0000026D4A980000-0x0000026D4A98A000-memory.dmp

            memory/1388-56-0x0000026D62E30000-0x0000026D62E42000-memory.dmp

            memory/1388-54-0x0000026D62AB0000-0x0000026D62AC0000-memory.dmp

            memory/1388-53-0x0000026D62AB0000-0x0000026D62AC0000-memory.dmp

            memory/1388-52-0x00007FFC3B8F0000-0x00007FFC3C3B1000-memory.dmp

            memory/3460-77-0x00000000000E0000-0x0000000000593000-memory.dmp

            memory/3460-78-0x00000000000E0000-0x0000000000593000-memory.dmp

            memory/3460-19-0x00000000000E0000-0x0000000000593000-memory.dmp

            memory/3460-20-0x0000000004A40000-0x0000000004A41000-memory.dmp

            memory/3460-21-0x0000000004A50000-0x0000000004A51000-memory.dmp

            memory/3460-22-0x0000000004A30000-0x0000000004A31000-memory.dmp

            memory/3460-23-0x0000000004A80000-0x0000000004A81000-memory.dmp

            memory/3460-24-0x0000000004A10000-0x0000000004A11000-memory.dmp

            memory/3460-26-0x0000000004A70000-0x0000000004A71000-memory.dmp

            memory/3460-25-0x0000000004A20000-0x0000000004A21000-memory.dmp

            memory/3460-27-0x0000000004AA0000-0x0000000004AA1000-memory.dmp

            memory/3460-28-0x0000000004A90000-0x0000000004A91000-memory.dmp

            memory/3460-29-0x00000000000E0000-0x0000000000593000-memory.dmp

            memory/3460-87-0x00000000000E0000-0x0000000000593000-memory.dmp

            memory/3460-86-0x00000000000E0000-0x0000000000593000-memory.dmp

            memory/3460-85-0x00000000000E0000-0x0000000000593000-memory.dmp

            memory/3460-84-0x00000000000E0000-0x0000000000593000-memory.dmp

            memory/3460-83-0x00000000000E0000-0x0000000000593000-memory.dmp

            memory/3460-82-0x00000000000E0000-0x0000000000593000-memory.dmp

            memory/3460-81-0x00000000000E0000-0x0000000000593000-memory.dmp

            memory/3460-55-0x00000000000E0000-0x0000000000593000-memory.dmp

            memory/3460-80-0x00000000000E0000-0x0000000000593000-memory.dmp

            memory/3460-79-0x00000000000E0000-0x0000000000593000-memory.dmp

            memory/3460-18-0x00000000000E0000-0x0000000000593000-memory.dmp

            memory/3460-64-0x00000000000E0000-0x0000000000593000-memory.dmp

            memory/3460-65-0x00000000000E0000-0x0000000000593000-memory.dmp

            memory/3892-1-0x0000000077C34000-0x0000000077C36000-memory.dmp

            memory/3892-7-0x0000000004ED0000-0x0000000004ED1000-memory.dmp

            memory/3892-0-0x0000000000730000-0x0000000000BE3000-memory.dmp

            memory/3892-8-0x0000000004EE0000-0x0000000004EE1000-memory.dmp

            memory/3892-9-0x0000000004F60000-0x0000000004F61000-memory.dmp

            memory/3892-10-0x0000000004F50000-0x0000000004F51000-memory.dmp

            memory/3892-15-0x0000000000730000-0x0000000000BE3000-memory.dmp

            memory/3892-6-0x0000000004F30000-0x0000000004F31000-memory.dmp

            memory/3892-2-0x0000000000730000-0x0000000000BE3000-memory.dmp

            memory/3892-4-0x0000000004F10000-0x0000000004F11000-memory.dmp

            memory/3892-3-0x0000000004F00000-0x0000000004F01000-memory.dmp

            memory/3892-5-0x0000000004EF0000-0x0000000004EF1000-memory.dmp