Analysis

  • max time kernel
    143s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    03/01/2024, 06:26

General

  • Target
    ama.exe
  • Size 4.2MB
  • Sample240103-g67c8acbak
  • SHA256 7067efc25c133206570865eb8e8063d59894e5a3c457e287ca050d6fc3d182d4
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • amadey

Version
  • 4.13

C2
  • http://185.172.128.5

Attributes
  • install_dir

    4fdb51ccdc

  • install_file

    Utsysc.exe

  • strings_key

    11bb398ff31ee80d2c37571aecd1d36d

  • url_paths

    /v8sjh3hs8/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 4 IoCs
  • Blocklisted process makes network request 2 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 8 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 14 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.

  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ama.exe
    "C:\Users\Admin\AppData\Local\Temp\ama.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:760
    • C:\Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe
      "C:\Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2848
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN Utsysc.exe /TR "C:\Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe" /F
        3⤵
        • Creates scheduled task(s)
        PID:2888
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\80c6bf70bf3f8f\cred64.dll, Main
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2120
        • C:\Windows\system32\rundll32.exe
          "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\80c6bf70bf3f8f\cred64.dll, Main
          4⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2296
          • C:\Windows\system32\netsh.exe
            netsh wlan show profiles
            5⤵
              PID:2320
            • 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\427588347149_Desktop.zip' -CompressionLevel Optimal
              5⤵
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:1184
        • C:\Windows\SysWOW64\rundll32.exe
          "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\80c6bf70bf3f8f\clip64.dll, Main
          3⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          PID:2456
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {9C03E0DB-607E-460B-804D-5D0A89805326} S-1-5-21-3427588347-1492276948-3422228430-1000:QVMRJQQO\Admin:Interactive:[1]
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:1096
      • C:\Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe
        C:\Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe
        2⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious behavior: EnumeratesProcesses
        PID:1652
      • C:\Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe
        C:\Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe
        2⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious behavior: EnumeratesProcesses
        PID:2844

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          427588347149

          • Path C:\Users\Admin\AppData\Local\Temp\427588347149
          • Size 63KB
          • SHA256 487b56f799ad47bdc2e206308976ed652bd00df1d87a08e472dffc5e586cab6d
          • MD5 SHA1 SHA512 SSDEEP

          Utsysc.exe

          • Path C:\Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe
          • Size 4.2MB
          • SHA256 7067efc25c133206570865eb8e8063d59894e5a3c457e287ca050d6fc3d182d4
          • MD5 SHA1 SHA512 SSDEEP

          Utsysc.exe

          • Path C:\Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe
          • Size 1.4MB
          • SHA256 2f839d96a67181574dc8c8b8a1ed1036eb5a7e3916c9abe1441e9440a5af4a27
          • MD5 SHA1 SHA512 SSDEEP

          Utsysc.exe

          • Path C:\Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe
          • Size 1.1MB
          • SHA256 d40a199c17b49996b71c5edc51e3d00953069cdb3b70ad9bfcd729ba96a4342d
          • MD5 SHA1 SHA512 SSDEEP

          Utsysc.exe

          • Path C:\Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe
          • Size 1.6MB
          • SHA256 38f57da718c13b534d27b51a630f57e5d49de0a3e0ea77faf14b2645a29b65d0
          • MD5 SHA1 SHA512 SSDEEP

          clip64.dll

          • Path C:\Users\Admin\AppData\Roaming\80c6bf70bf3f8f\clip64.dll
          • Size 102KB
          • SHA256 f5d35a2366cf13312a30c9384f1ac30d9dc9ced46fa6b1b9c2d0621493cc2495
          • MD5 SHA1 SHA512 SSDEEP

          cred64.dll

          • Path C:\Users\Admin\AppData\Roaming\80c6bf70bf3f8f\cred64.dll
          • Size 1.2MB
          • SHA256 48c4c53425a0ee02d48f3eab2b4da3b6ed24d6d5bc45dea783e43e32b9752931
          • MD5 SHA1 SHA512 SSDEEP

          Utsysc.exe

          • Path \Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe
          • Size 1.6MB
          • SHA256 d65f662c6382edb8c093bb3f087dac6c309d8895517c8e8083fe76abc691a11a
          • MD5 SHA1 SHA512 SSDEEP

          Utsysc.exe

          • Path \Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe
          • Size 1.9MB
          • SHA256 9d3aee04fec0792decbc91384c948aaa13cdc68a150840eb0d920beb70458ced
          • MD5 SHA1 SHA512 SSDEEP

          memory/760-64-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-1-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/760-19-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-20-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-21-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-22-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-23-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-24-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-25-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-26-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-28-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-29-0x0000000077560000-0x0000000077562000-memory.dmp

          memory/760-27-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-30-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/760-31-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/760-32-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/760-33-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/760-34-0x00000000010C0000-0x00000000010C1000-memory.dmp

          memory/760-17-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-16-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-15-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-45-0x0000000004420000-0x000000000502C000-memory.dmp

          memory/760-14-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-13-0x0000000076AD0000-0x0000000076B17000-memory.dmp

          memory/760-2-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/760-116-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-48-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/760-51-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-52-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-5-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/760-54-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-55-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-56-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-57-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-58-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-59-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-60-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-61-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-63-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-0-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/760-65-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-67-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-68-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-69-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-18-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-53-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/760-50-0x0000000076AD0000-0x0000000076B17000-memory.dmp

          memory/760-12-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/1652-108-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/1652-147-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/1652-158-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/1652-152-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/1652-149-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/1652-143-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/1652-113-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/1652-109-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/2844-227-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/2844-252-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/2844-248-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/2844-246-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/2848-117-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/2848-49-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/2848-95-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/2848-96-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/2848-81-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/2848-80-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/2848-78-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/2848-71-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/2848-88-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/2848-87-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/2848-115-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/2848-79-0x0000000076AD0000-0x0000000076B17000-memory.dmp

          memory/2848-90-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/2848-119-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/2848-118-0x0000000076AD0000-0x0000000076B17000-memory.dmp

          memory/2848-94-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/2848-86-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/2848-144-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/2848-146-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/2848-82-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/2848-85-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/2848-84-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/2848-83-0x0000000076AD0000-0x0000000076B17000-memory.dmp

          memory/2848-47-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/2848-219-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/2848-93-0x0000000000400000-0x000000000100C000-memory.dmp

          memory/2848-91-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/2848-92-0x0000000076B50000-0x0000000076C60000-memory.dmp

          memory/2848-89-0x0000000076B50000-0x0000000076C60000-memory.dmp