Analysis

  • max time kernel
    147s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240319-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/04/2024, 22:50

General

  • Target
    a80e988f3b2c8e2b8617a176a1e8f4fb5fe1c4b4ddf99c13d6fd639c4f876de6.exe
  • Size 1.8MB
  • Sample240403-2sasbaff66
  • SHA256 a80e988f3b2c8e2b8617a176a1e8f4fb5fe1c4b4ddf99c13d6fd639c4f876de6
  • 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

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\a80e988f3b2c8e2b8617a176a1e8f4fb5fe1c4b4ddf99c13d6fd639c4f876de6.exe
    "C:\Users\Admin\AppData\Local\Temp\a80e988f3b2c8e2b8617a176a1e8f4fb5fe1c4b4ddf99c13d6fd639c4f876de6.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:3656
  • 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:2552
    • 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:4272
      • 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:4976
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:4916
          • 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\172592802658_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2440
      • 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:4520
    • 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=3456 --field-trial-handle=2264,i,7994609493164365963,13212734413040148104,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:3148

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            explorgu.exe

            • Path C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe
            • Size 1.8MB
            • SHA256 a80e988f3b2c8e2b8617a176a1e8f4fb5fe1c4b4ddf99c13d6fd639c4f876de6
            • MD5 SHA1 SHA512 SSDEEP

            __PSScriptPolicyTest_l4g3qczr.lif.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_l4g3qczr.lif.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

            memory/2440-65-0x00007FFC73680000-0x00007FFC74141000-memory.dmp

            memory/2440-59-0x000001AFFE290000-0x000001AFFE29A000-memory.dmp

            memory/2440-58-0x000001AFFE2E0000-0x000001AFFE2F2000-memory.dmp

            memory/2440-54-0x000001AF98750000-0x000001AF98760000-memory.dmp

            memory/2440-57-0x000001AF98750000-0x000001AF98760000-memory.dmp

            memory/2440-55-0x000001AF98750000-0x000001AF98760000-memory.dmp

            memory/2440-53-0x00007FFC73680000-0x00007FFC74141000-memory.dmp

            memory/2440-43-0x000001AFFE2B0000-0x000001AFFE2D2000-memory.dmp

            memory/2552-28-0x0000000004B40000-0x0000000004B41000-memory.dmp

            memory/2552-66-0x0000000000100000-0x00000000005C1000-memory.dmp

            memory/2552-19-0x0000000000100000-0x00000000005C1000-memory.dmp

            memory/2552-20-0x0000000000100000-0x00000000005C1000-memory.dmp

            memory/2552-22-0x0000000004AF0000-0x0000000004AF1000-memory.dmp

            memory/2552-27-0x0000000004B10000-0x0000000004B11000-memory.dmp

            memory/2552-26-0x0000000004AC0000-0x0000000004AC1000-memory.dmp

            memory/2552-25-0x0000000004AB0000-0x0000000004AB1000-memory.dmp

            memory/2552-24-0x0000000004B20000-0x0000000004B21000-memory.dmp

            memory/2552-23-0x0000000004AD0000-0x0000000004AD1000-memory.dmp

            memory/2552-21-0x0000000004AE0000-0x0000000004AE1000-memory.dmp

            memory/2552-29-0x0000000004B30000-0x0000000004B31000-memory.dmp

            memory/2552-86-0x0000000000100000-0x00000000005C1000-memory.dmp

            memory/2552-30-0x0000000000100000-0x00000000005C1000-memory.dmp

            memory/2552-85-0x0000000000100000-0x00000000005C1000-memory.dmp

            memory/2552-84-0x0000000000100000-0x00000000005C1000-memory.dmp

            memory/2552-83-0x0000000000100000-0x00000000005C1000-memory.dmp

            memory/2552-82-0x0000000000100000-0x00000000005C1000-memory.dmp

            memory/2552-81-0x0000000000100000-0x00000000005C1000-memory.dmp

            memory/2552-80-0x0000000000100000-0x00000000005C1000-memory.dmp

            memory/2552-56-0x0000000000100000-0x00000000005C1000-memory.dmp

            memory/2552-79-0x0000000000100000-0x00000000005C1000-memory.dmp

            memory/2552-67-0x0000000000100000-0x00000000005C1000-memory.dmp

            memory/3656-6-0x00000000051D0000-0x00000000051D1000-memory.dmp

            memory/3656-2-0x0000000000990000-0x0000000000E51000-memory.dmp

            memory/3656-16-0x0000000000990000-0x0000000000E51000-memory.dmp

            memory/3656-8-0x00000000051E0000-0x00000000051E1000-memory.dmp

            memory/3656-1-0x00000000777C4000-0x00000000777C6000-memory.dmp

            memory/3656-7-0x00000000051F0000-0x00000000051F1000-memory.dmp

            memory/3656-9-0x0000000005230000-0x0000000005231000-memory.dmp

            memory/3656-5-0x0000000005240000-0x0000000005241000-memory.dmp

            memory/3656-4-0x0000000005210000-0x0000000005211000-memory.dmp

            memory/3656-3-0x0000000005200000-0x0000000005201000-memory.dmp

            memory/3656-10-0x0000000005260000-0x0000000005261000-memory.dmp

            memory/3656-11-0x0000000005250000-0x0000000005251000-memory.dmp

            memory/3656-0-0x0000000000990000-0x0000000000E51000-memory.dmp