Analysis

  • max time kernel
    147s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/02/2024, 19:15

General

  • Target
    cf361aea1198ea2ea7e608ac3950eab8.exe
  • Size 2.5MB
  • Sample240204-xx9d8aahdk
  • SHA256 d12b78b7be43750a57e10e2f989f01dd22fb3a3c8bcec4d15877be0d9dffc3ef
  • 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.

  • Blocklisted process makes network request 2 IoCs
  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • 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 13 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 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cf361aea1198ea2ea7e608ac3950eab8.exe
    "C:\Users\Admin\AppData\Local\Temp\cf361aea1198ea2ea7e608ac3950eab8.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:4268
  • C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe
    C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3372
    • 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:1420
      • 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:3904
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:1124
          • 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\356085813370_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:840
      • 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:2204

    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 2.5MB
          • SHA256 d12b78b7be43750a57e10e2f989f01dd22fb3a3c8bcec4d15877be0d9dffc3ef
          • MD5 SHA1 SHA512 SSDEEP

          __PSScriptPolicyTest_zqet3p0x.v0x.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zqet3p0x.v0x.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/840-33-0x0000020141030000-0x0000020141052000-memory.dmp

          memory/840-49-0x00007FFC09820000-0x00007FFC0A2E1000-memory.dmp

          memory/840-43-0x000002013EEA0000-0x000002013EEAA000-memory.dmp

          memory/840-42-0x00000201411C0000-0x00000201411D2000-memory.dmp

          memory/840-41-0x000002013EEB0000-0x000002013EEC0000-memory.dmp

          memory/840-40-0x000002013EEB0000-0x000002013EEC0000-memory.dmp

          memory/840-39-0x000002013EEB0000-0x000002013EEC0000-memory.dmp

          memory/840-38-0x00007FFC09820000-0x00007FFC0A2E1000-memory.dmp

          memory/3372-13-0x0000000077D42000-0x0000000077D43000-memory.dmp

          memory/3372-50-0x000000007EB80000-0x000000007EF51000-memory.dmp

          memory/3372-14-0x00000000000A0000-0x0000000000AA9000-memory.dmp

          memory/3372-70-0x00000000000A0000-0x0000000000AA9000-memory.dmp

          memory/3372-12-0x000000007EB80000-0x000000007EF51000-memory.dmp

          memory/3372-11-0x00000000000A0000-0x0000000000AA9000-memory.dmp

          memory/3372-69-0x00000000000A0000-0x0000000000AA9000-memory.dmp

          memory/3372-68-0x00000000000A0000-0x0000000000AA9000-memory.dmp

          memory/3372-67-0x00000000000A0000-0x0000000000AA9000-memory.dmp

          memory/3372-27-0x00000000000A0000-0x0000000000AA9000-memory.dmp

          memory/3372-51-0x00000000000A0000-0x0000000000AA9000-memory.dmp

          memory/3372-66-0x00000000000A0000-0x0000000000AA9000-memory.dmp

          memory/3372-63-0x00000000000A0000-0x0000000000AA9000-memory.dmp

          memory/3372-64-0x00000000000A0000-0x0000000000AA9000-memory.dmp

          memory/3372-65-0x00000000000A0000-0x0000000000AA9000-memory.dmp

          memory/4268-1-0x000000007F9D0000-0x000000007FDA1000-memory.dmp

          memory/4268-2-0x0000000077D42000-0x0000000077D43000-memory.dmp

          memory/4268-7-0x0000000000420000-0x0000000000E29000-memory.dmp

          memory/4268-8-0x000000007F9D0000-0x000000007FDA1000-memory.dmp

          memory/4268-0-0x0000000000420000-0x0000000000E29000-memory.dmp