Resubmissions

04/04/2024, 22:10

240404-13draabd6t 10

04/04/2024, 22:00

240404-1w1mgabc6y 10

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    04/04/2024, 22:00

General

  • Target

    e28536860e407babb066a6a177176a922c7dc575fa6c4f2109d4130d27e54ced.exe

  • Size

    1.8MB

  • MD5

    a2eae03ce6f8fad172961a583cef7695

  • SHA1

    632e6697681a3d69c94ab6bb19e05dfd0fcc7045

  • SHA256

    e28536860e407babb066a6a177176a922c7dc575fa6c4f2109d4130d27e54ced

  • SHA512

    fdd9db23513a716ed87405456d39b83a5462cec80d618718991cc86f0ed8d52ee1fe6ee78937a47bcfaecf8d12f6f3b391279c5e2ae9ab97b3fbb54453ded7ac

  • SSDEEP

    49152:vwS03ipJEbh7IDk5TP+YtQNE+wK2qO8CkoJS:v4MWsITHtVKhqJ

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.

  • 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 FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e28536860e407babb066a6a177176a922c7dc575fa6c4f2109d4130d27e54ced.exe
    "C:\Users\Admin\AppData\Local\Temp\e28536860e407babb066a6a177176a922c7dc575fa6c4f2109d4130d27e54ced.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:4948
  • 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
    • Executes dropped EXE
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4204
    • 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:3448
      • 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:1444
        • C:\Windows\system32\netsh.exe
          netsh wlan show profiles
          4⤵
            PID:4860
          • 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\181651180316_Desktop.zip' -CompressionLevel Optimal
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3908
      • 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:3040

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe

      Filesize

      1.8MB

      MD5

      a2eae03ce6f8fad172961a583cef7695

      SHA1

      632e6697681a3d69c94ab6bb19e05dfd0fcc7045

      SHA256

      e28536860e407babb066a6a177176a922c7dc575fa6c4f2109d4130d27e54ced

      SHA512

      fdd9db23513a716ed87405456d39b83a5462cec80d618718991cc86f0ed8d52ee1fe6ee78937a47bcfaecf8d12f6f3b391279c5e2ae9ab97b3fbb54453ded7ac

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gclrd2ko.kby.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dll

      Filesize

      109KB

      MD5

      2afdbe3b99a4736083066a13e4b5d11a

      SHA1

      4d4856cf02b3123ac16e63d4a448cdbcb1633546

      SHA256

      8d31b39170909595b518b1a03e9ec950540fabd545ed14817cac5c84b91599ee

      SHA512

      d89b3c46854153e60e3fa825b394344eee33936d7dbf186af9d95c9adae54428609e3bf21a18d38fce3d96f3e0b8e4e0ed25cb5004fbe288de3aef3a85b1d93f

    • C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll

      Filesize

      1.2MB

      MD5

      92fbdfccf6a63acef2743631d16652a7

      SHA1

      971968b1378dd89d59d7f84bf92f16fc68664506

      SHA256

      b4588feacc183cd5a089f9bb950827b75df04bd5a6e67c95ff258e4a34aa0d72

      SHA512

      b8ea216d4a59d8858fd4128abb555f8dcf3acca9138e663b488f09dc5200db6dc11ecc235a355e801145bbbb44d7beac6147949d75d78b32fe9cfd2fa200d117

    • memory/3908-44-0x000001F71CE90000-0x000001F71CEB2000-memory.dmp

      Filesize

      136KB

    • memory/3908-59-0x00007FFC9A640000-0x00007FFC9B102000-memory.dmp

      Filesize

      10.8MB

    • memory/3908-53-0x000001F71CF30000-0x000001F71CF3A000-memory.dmp

      Filesize

      40KB

    • memory/3908-52-0x000001F71CF40000-0x000001F71CF52000-memory.dmp

      Filesize

      72KB

    • memory/3908-51-0x000001F735180000-0x000001F735190000-memory.dmp

      Filesize

      64KB

    • memory/3908-49-0x000001F735180000-0x000001F735190000-memory.dmp

      Filesize

      64KB

    • memory/3908-48-0x00007FFC9A640000-0x00007FFC9B102000-memory.dmp

      Filesize

      10.8MB

    • memory/4204-20-0x0000000005120000-0x0000000005121000-memory.dmp

      Filesize

      4KB

    • memory/4204-82-0x0000000000AC0000-0x0000000000F79000-memory.dmp

      Filesize

      4.7MB

    • memory/4204-18-0x0000000000AC0000-0x0000000000F79000-memory.dmp

      Filesize

      4.7MB

    • memory/4204-83-0x0000000000AC0000-0x0000000000F79000-memory.dmp

      Filesize

      4.7MB

    • memory/4204-21-0x0000000005160000-0x0000000005161000-memory.dmp

      Filesize

      4KB

    • memory/4204-22-0x0000000005100000-0x0000000005101000-memory.dmp

      Filesize

      4KB

    • memory/4204-19-0x0000000005130000-0x0000000005131000-memory.dmp

      Filesize

      4KB

    • memory/4204-23-0x0000000005110000-0x0000000005111000-memory.dmp

      Filesize

      4KB

    • memory/4204-24-0x0000000005140000-0x0000000005141000-memory.dmp

      Filesize

      4KB

    • memory/4204-17-0x0000000000AC0000-0x0000000000F79000-memory.dmp

      Filesize

      4.7MB

    • memory/4204-26-0x0000000000AC0000-0x0000000000F79000-memory.dmp

      Filesize

      4.7MB

    • memory/4204-73-0x0000000000AC0000-0x0000000000F79000-memory.dmp

      Filesize

      4.7MB

    • memory/4204-81-0x0000000000AC0000-0x0000000000F79000-memory.dmp

      Filesize

      4.7MB

    • memory/4204-80-0x0000000000AC0000-0x0000000000F79000-memory.dmp

      Filesize

      4.7MB

    • memory/4204-25-0x0000000005180000-0x0000000005181000-memory.dmp

      Filesize

      4KB

    • memory/4204-79-0x0000000000AC0000-0x0000000000F79000-memory.dmp

      Filesize

      4.7MB

    • memory/4204-50-0x0000000000AC0000-0x0000000000F79000-memory.dmp

      Filesize

      4.7MB

    • memory/4204-78-0x0000000000AC0000-0x0000000000F79000-memory.dmp

      Filesize

      4.7MB

    • memory/4204-77-0x0000000000AC0000-0x0000000000F79000-memory.dmp

      Filesize

      4.7MB

    • memory/4204-76-0x0000000000AC0000-0x0000000000F79000-memory.dmp

      Filesize

      4.7MB

    • memory/4204-75-0x0000000000AC0000-0x0000000000F79000-memory.dmp

      Filesize

      4.7MB

    • memory/4204-60-0x0000000000AC0000-0x0000000000F79000-memory.dmp

      Filesize

      4.7MB

    • memory/4204-61-0x0000000000AC0000-0x0000000000F79000-memory.dmp

      Filesize

      4.7MB

    • memory/4204-74-0x0000000000AC0000-0x0000000000F79000-memory.dmp

      Filesize

      4.7MB

    • memory/4948-4-0x0000000004C40000-0x0000000004C41000-memory.dmp

      Filesize

      4KB

    • memory/4948-1-0x0000000077A96000-0x0000000077A98000-memory.dmp

      Filesize

      8KB

    • memory/4948-5-0x0000000004C80000-0x0000000004C81000-memory.dmp

      Filesize

      4KB

    • memory/4948-6-0x0000000004C20000-0x0000000004C21000-memory.dmp

      Filesize

      4KB

    • memory/4948-7-0x0000000004C30000-0x0000000004C31000-memory.dmp

      Filesize

      4KB

    • memory/4948-9-0x0000000004CA0000-0x0000000004CA1000-memory.dmp

      Filesize

      4KB

    • memory/4948-8-0x0000000004CB0000-0x0000000004CB1000-memory.dmp

      Filesize

      4KB

    • memory/4948-14-0x0000000000590000-0x0000000000A49000-memory.dmp

      Filesize

      4.7MB

    • memory/4948-3-0x0000000004C50000-0x0000000004C51000-memory.dmp

      Filesize

      4KB

    • memory/4948-0-0x0000000000590000-0x0000000000A49000-memory.dmp

      Filesize

      4.7MB

    • memory/4948-2-0x0000000000590000-0x0000000000A49000-memory.dmp

      Filesize

      4.7MB