Analysis

  • max time kernel
    147s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/04/2024, 18:27

General

  • Target
    7bdd2423213c80aee7b3e6e726f3fd24fb6b768b1102e7ed227ea69dfafcb24d.exe
  • Size 1.8MB
  • Sample240407-w3wvmsba2x
  • SHA256 7bdd2423213c80aee7b3e6e726f3fd24fb6b768b1102e7ed227ea69dfafcb24d
  • 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 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7bdd2423213c80aee7b3e6e726f3fd24fb6b768b1102e7ed227ea69dfafcb24d.exe
    "C:\Users\Admin\AppData\Local\Temp\7bdd2423213c80aee7b3e6e726f3fd24fb6b768b1102e7ed227ea69dfafcb24d.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:4500
  • 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:3224
    • 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:4732
      • 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:572
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:2360
          • 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\134859772495_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:940
      • 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:1492

    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 1.8MB
          • SHA256 7bdd2423213c80aee7b3e6e726f3fd24fb6b768b1102e7ed227ea69dfafcb24d
          • MD5 SHA1 SHA512 SSDEEP

          __PSScriptPolicyTest_3pztjayz.3ya.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3pztjayz.3ya.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/940-63-0x00007FF8673B0000-0x00007FF867E71000-memory.dmp

          memory/940-56-0x0000027BD4510000-0x0000027BD4522000-memory.dmp

          memory/940-57-0x0000027BD3770000-0x0000027BD377A000-memory.dmp

          memory/940-55-0x0000027BD3910000-0x0000027BD3920000-memory.dmp

          memory/940-53-0x0000027BD3910000-0x0000027BD3920000-memory.dmp

          memory/940-52-0x00007FF8673B0000-0x00007FF867E71000-memory.dmp

          memory/940-44-0x0000027BBB4E0000-0x0000027BBB502000-memory.dmp

          memory/3224-28-0x0000000004AB0000-0x0000000004AB1000-memory.dmp

          memory/3224-65-0x0000000000170000-0x000000000062D000-memory.dmp

          memory/3224-18-0x0000000000170000-0x000000000062D000-memory.dmp

          memory/3224-26-0x0000000004A90000-0x0000000004A91000-memory.dmp

          memory/3224-25-0x0000000004A40000-0x0000000004A41000-memory.dmp

          memory/3224-24-0x0000000004A30000-0x0000000004A31000-memory.dmp

          memory/3224-23-0x0000000004AA0000-0x0000000004AA1000-memory.dmp

          memory/3224-22-0x0000000004A50000-0x0000000004A51000-memory.dmp

          memory/3224-21-0x0000000004A70000-0x0000000004A71000-memory.dmp

          memory/3224-20-0x0000000004A60000-0x0000000004A61000-memory.dmp

          memory/3224-19-0x0000000000170000-0x000000000062D000-memory.dmp

          memory/3224-85-0x0000000000170000-0x000000000062D000-memory.dmp

          memory/3224-27-0x0000000004AC0000-0x0000000004AC1000-memory.dmp

          memory/3224-29-0x0000000000170000-0x000000000062D000-memory.dmp

          memory/3224-84-0x0000000000170000-0x000000000062D000-memory.dmp

          memory/3224-83-0x0000000000170000-0x000000000062D000-memory.dmp

          memory/3224-82-0x0000000000170000-0x000000000062D000-memory.dmp

          memory/3224-81-0x0000000000170000-0x000000000062D000-memory.dmp

          memory/3224-80-0x0000000000170000-0x000000000062D000-memory.dmp

          memory/3224-54-0x0000000000170000-0x000000000062D000-memory.dmp

          memory/3224-79-0x0000000000170000-0x000000000062D000-memory.dmp

          memory/3224-78-0x0000000000170000-0x000000000062D000-memory.dmp

          memory/3224-77-0x0000000000170000-0x000000000062D000-memory.dmp

          memory/3224-64-0x0000000000170000-0x000000000062D000-memory.dmp

          memory/4500-8-0x0000000004C90000-0x0000000004C91000-memory.dmp

          memory/4500-15-0x0000000000600000-0x0000000000ABD000-memory.dmp

          memory/4500-1-0x0000000076F64000-0x0000000076F66000-memory.dmp

          memory/4500-7-0x0000000004C60000-0x0000000004C61000-memory.dmp

          memory/4500-6-0x0000000004C50000-0x0000000004C51000-memory.dmp

          memory/4500-5-0x0000000004CB0000-0x0000000004CB1000-memory.dmp

          memory/4500-4-0x0000000004C70000-0x0000000004C71000-memory.dmp

          memory/4500-3-0x0000000004C80000-0x0000000004C81000-memory.dmp

          memory/4500-2-0x0000000000600000-0x0000000000ABD000-memory.dmp

          memory/4500-10-0x0000000004CC0000-0x0000000004CC1000-memory.dmp

          memory/4500-9-0x0000000004CD0000-0x0000000004CD1000-memory.dmp

          memory/4500-0-0x0000000000600000-0x0000000000ABD000-memory.dmp