Analysis

  • max time kernel
    148s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-04-2024 19:53

General

  • Target

    61bc0d72cc30e7f914eeb188d5e184dbcc06b9c2c1a95f40f2d691814e46e911.exe

  • Size

    1.8MB

  • MD5

    62f1fa50f787174efe7b66d2d8cfe678

  • SHA1

    26154cfcee6f9bce3488bd084da68b41140ee5b2

  • SHA256

    61bc0d72cc30e7f914eeb188d5e184dbcc06b9c2c1a95f40f2d691814e46e911

  • SHA512

    87957e8747d1944f26365c06fc83c14edd418f0ba46d06f5d07def2ca67cc64b6fc8994bfe2f0f5a3c53d75688936ea31b296157149018e9636ebe9599de5300

  • SSDEEP

    49152:p+Obyj/KS/tDxWt6qIffufQmd0F3iEfBjk078:p+Obgt/ttWTIfuQmS3FJgF

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

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 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 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 1 IoCs

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

  • 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).

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\61bc0d72cc30e7f914eeb188d5e184dbcc06b9c2c1a95f40f2d691814e46e911.exe
    "C:\Users\Admin\AppData\Local\Temp\61bc0d72cc30e7f914eeb188d5e184dbcc06b9c2c1a95f40f2d691814e46e911.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:3400
  • 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:4608
    • C:\Users\Admin\AppData\Local\Temp\1000242001\loader.exe
      "C:\Users\Admin\AppData\Local\Temp\1000242001\loader.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:392
      • C:\Windows\system32\svchost.exe
        svchost.exe
        3⤵
          PID:3188
        • C:\Windows\system32\cmd.exe
          "cmd.exe" /c chcp 65001 && netsh wlan show profiles|findstr /R /C:"[ ]:[ ]"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4804
          • C:\Windows\system32\chcp.com
            chcp 65001
            4⤵
              PID:1972
            • C:\Windows\system32\netsh.exe
              netsh wlan show profiles
              4⤵
                PID:4580
              • C:\Windows\system32\findstr.exe
                findstr /R /C:"[ ]:[ ]"
                4⤵
                  PID:3800
              • C:\Windows\system32\cmd.exe
                "cmd.exe" /c chcp 65001 && netsh wlan show networks mode=bssid | findstr "SSID BSSID Signal"
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:1848
                • C:\Windows\system32\chcp.com
                  chcp 65001
                  4⤵
                    PID:4044
                  • C:\Windows\system32\netsh.exe
                    netsh wlan show networks mode=bssid
                    4⤵
                      PID:1732
                    • C:\Windows\system32\findstr.exe
                      findstr "SSID BSSID Signal"
                      4⤵
                        PID:2076
                    • C:\Windows\System32\cmd.exe
                      "C:\Windows\System32\cmd.exe" /C chcp 65001 && timeout /t 3 > NUL && DEL /F /S /Q /A "C:\Users\Admin\AppData\Local\Temp\1000242001\loader.exe"
                      3⤵
                      • Suspicious use of WriteProcessMemory
                      PID:3696
                      • C:\Windows\system32\chcp.com
                        chcp 65001
                        4⤵
                          PID:3012
                        • C:\Windows\system32\timeout.exe
                          timeout /t 3
                          4⤵
                          • Delays execution with timeout.exe
                          PID:2304
                    • 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:4772
                      • 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:3528
                        • C:\Windows\system32\netsh.exe
                          netsh wlan show profiles
                          4⤵
                            PID:4828
                          • 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:4604
                      • 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:4828
                    • 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=4068 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:8
                      1⤵
                        PID:2160

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\Local\Temp\1000242001\loader.exe

                        Filesize

                        479KB

                        MD5

                        aed761007fae099d18aa07f3508044f7

                        SHA1

                        3d388cc83110f82f36c01a49423c667dcb55918e

                        SHA256

                        d6178b0a2267a5250f602a5cb8f259b18287173c86f97483e21d482ca7faef77

                        SHA512

                        9e28a4a008ad8b4e9996c4ae9971e2b626dfa30c290347c06e77efb8d45488e3954205ba702713bde11721959fa7290f76e9f7aaa448d4e02a4cef9e77bcfb2a

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

                        Filesize

                        1.8MB

                        MD5

                        62f1fa50f787174efe7b66d2d8cfe678

                        SHA1

                        26154cfcee6f9bce3488bd084da68b41140ee5b2

                        SHA256

                        61bc0d72cc30e7f914eeb188d5e184dbcc06b9c2c1a95f40f2d691814e46e911

                        SHA512

                        87957e8747d1944f26365c06fc83c14edd418f0ba46d06f5d07def2ca67cc64b6fc8994bfe2f0f5a3c53d75688936ea31b296157149018e9636ebe9599de5300

                      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_v2fa3xmz.2h1.ps1

                        Filesize

                        60B

                        MD5

                        d17fe0a3f47be24a6453e9ef58c94641

                        SHA1

                        6ab83620379fc69f80c0242105ddffd7d98d5d9d

                        SHA256

                        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

                        SHA512

                        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

                      • 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/392-45-0x00007FFEAA610000-0x00007FFEAA805000-memory.dmp

                        Filesize

                        2.0MB

                      • memory/392-48-0x0000025418A70000-0x0000025418A94000-memory.dmp

                        Filesize

                        144KB

                      • memory/392-46-0x0000025400000000-0x0000025400026000-memory.dmp

                        Filesize

                        152KB

                      • memory/3400-0-0x0000000000240000-0x00000000006F2000-memory.dmp

                        Filesize

                        4.7MB

                      • memory/3400-4-0x0000000005630000-0x0000000005631000-memory.dmp

                        Filesize

                        4KB

                      • memory/3400-9-0x00000000056A0000-0x00000000056A1000-memory.dmp

                        Filesize

                        4KB

                      • memory/3400-15-0x0000000000240000-0x00000000006F2000-memory.dmp

                        Filesize

                        4.7MB

                      • memory/3400-2-0x0000000000240000-0x00000000006F2000-memory.dmp

                        Filesize

                        4.7MB

                      • memory/3400-1-0x0000000077A14000-0x0000000077A16000-memory.dmp

                        Filesize

                        8KB

                      • memory/3400-3-0x0000000005640000-0x0000000005641000-memory.dmp

                        Filesize

                        4KB

                      • memory/3400-8-0x0000000005650000-0x0000000005651000-memory.dmp

                        Filesize

                        4KB

                      • memory/3400-7-0x0000000005620000-0x0000000005621000-memory.dmp

                        Filesize

                        4KB

                      • memory/3400-6-0x0000000005610000-0x0000000005611000-memory.dmp

                        Filesize

                        4KB

                      • memory/3400-10-0x0000000005690000-0x0000000005691000-memory.dmp

                        Filesize

                        4KB

                      • memory/3400-5-0x0000000005670000-0x0000000005671000-memory.dmp

                        Filesize

                        4KB

                      • memory/4604-71-0x0000028FE1D10000-0x0000028FE1D32000-memory.dmp

                        Filesize

                        136KB

                      • memory/4604-73-0x0000028FE1FE0000-0x0000028FE1FF2000-memory.dmp

                        Filesize

                        72KB

                      • memory/4604-74-0x0000028FE1FC0000-0x0000028FE1FCA000-memory.dmp

                        Filesize

                        40KB

                      • memory/4608-102-0x00000000007C0000-0x0000000000C72000-memory.dmp

                        Filesize

                        4.7MB

                      • memory/4608-19-0x00000000007C0000-0x0000000000C72000-memory.dmp

                        Filesize

                        4.7MB

                      • memory/4608-49-0x00000000007C0000-0x0000000000C72000-memory.dmp

                        Filesize

                        4.7MB

                      • memory/4608-28-0x0000000004D90000-0x0000000004D91000-memory.dmp

                        Filesize

                        4KB

                      • memory/4608-20-0x0000000004D50000-0x0000000004D51000-memory.dmp

                        Filesize

                        4KB

                      • memory/4608-21-0x0000000004D60000-0x0000000004D61000-memory.dmp

                        Filesize

                        4KB

                      • memory/4608-22-0x0000000004D40000-0x0000000004D41000-memory.dmp

                        Filesize

                        4KB

                      • memory/4608-23-0x0000000004D80000-0x0000000004D81000-memory.dmp

                        Filesize

                        4KB

                      • memory/4608-24-0x0000000004D20000-0x0000000004D21000-memory.dmp

                        Filesize

                        4KB

                      • memory/4608-25-0x0000000004D30000-0x0000000004D31000-memory.dmp

                        Filesize

                        4KB

                      • memory/4608-26-0x0000000004D70000-0x0000000004D71000-memory.dmp

                        Filesize

                        4KB

                      • memory/4608-75-0x00000000007C0000-0x0000000000C72000-memory.dmp

                        Filesize

                        4.7MB

                      • memory/4608-81-0x00000000007C0000-0x0000000000C72000-memory.dmp

                        Filesize

                        4.7MB

                      • memory/4608-106-0x00000000007C0000-0x0000000000C72000-memory.dmp

                        Filesize

                        4.7MB

                      • memory/4608-97-0x00000000007C0000-0x0000000000C72000-memory.dmp

                        Filesize

                        4.7MB

                      • memory/4608-98-0x00000000007C0000-0x0000000000C72000-memory.dmp

                        Filesize

                        4.7MB

                      • memory/4608-99-0x00000000007C0000-0x0000000000C72000-memory.dmp

                        Filesize

                        4.7MB

                      • memory/4608-100-0x00000000007C0000-0x0000000000C72000-memory.dmp

                        Filesize

                        4.7MB

                      • memory/4608-101-0x00000000007C0000-0x0000000000C72000-memory.dmp

                        Filesize

                        4.7MB

                      • memory/4608-18-0x00000000007C0000-0x0000000000C72000-memory.dmp

                        Filesize

                        4.7MB

                      • memory/4608-103-0x00000000007C0000-0x0000000000C72000-memory.dmp

                        Filesize

                        4.7MB

                      • memory/4608-104-0x00000000007C0000-0x0000000000C72000-memory.dmp

                        Filesize

                        4.7MB

                      • memory/4608-105-0x00000000007C0000-0x0000000000C72000-memory.dmp

                        Filesize

                        4.7MB

                      • memory/4608-27-0x0000000004DA0000-0x0000000004DA1000-memory.dmp

                        Filesize

                        4KB

                      • memory/4608-107-0x00000000007C0000-0x0000000000C72000-memory.dmp

                        Filesize

                        4.7MB