Analysis

  • max time kernel
    171s
  • max time network
    181s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/11/2022, 19:16

General

  • Target
    file.exe
  • Size 222KB
  • Sample221108-xyr7bsdca2
  • SHA256 b59a69d292d78b9f198eb520135e4ebe78a6aea0a89af7702d524a09dc32a107
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • Detect Amadey credential stealer module 2 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Executes dropped EXE 4 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Loads dropped DLL 1 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 4 IoCs
  • 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 4 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2492
    • C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe
      "C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:4892
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN rovwer.exe /TR "C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe" /F
        3⤵
        • Creates scheduled task(s)
        PID:1256
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\bf045808586a24\cred64.dll, Main
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • outlook_win_path
        PID:1136
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2492 -s 1140
      2⤵
      • Program crash
      PID:4868
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2492 -ip 2492
    1⤵
      PID:4784
    • C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe
      C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe
      1⤵
      • Executes dropped EXE
      PID:2488
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 420
        2⤵
        • Program crash
        PID:4624
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 2488 -ip 2488
      1⤵
        PID:3532
      • C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe
        C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe
        1⤵
        • Executes dropped EXE
        PID:2568
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2568 -s 420
          2⤵
          • Program crash
          PID:3608
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 2568 -ip 2568
        1⤵
          PID:1956
        • C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe
          C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe
          1⤵
          • Executes dropped EXE
          PID:4144
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4144 -s 420
            2⤵
            • Program crash
            PID:2168
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4144 -ip 4144
          1⤵
            PID:3280

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                rovwer.exe

                • Path C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe
                • Size 222KB
                • SHA256 b59a69d292d78b9f198eb520135e4ebe78a6aea0a89af7702d524a09dc32a107
                • MD5 SHA1 SHA512 SSDEEP

                rovwer.exe

                • Path C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe
                • Size 222KB
                • SHA256 b59a69d292d78b9f198eb520135e4ebe78a6aea0a89af7702d524a09dc32a107
                • MD5 SHA1 SHA512 SSDEEP

                rovwer.exe

                • Path C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe
                • Size 222KB
                • SHA256 b59a69d292d78b9f198eb520135e4ebe78a6aea0a89af7702d524a09dc32a107
                • MD5 SHA1 SHA512 SSDEEP

                rovwer.exe

                • Path C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe
                • Size 222KB
                • SHA256 b59a69d292d78b9f198eb520135e4ebe78a6aea0a89af7702d524a09dc32a107
                • MD5 SHA1 SHA512 SSDEEP

                rovwer.exe

                • Path C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe
                • Size 222KB
                • SHA256 b59a69d292d78b9f198eb520135e4ebe78a6aea0a89af7702d524a09dc32a107
                • MD5 SHA1 SHA512 SSDEEP

                cred64.dll

                • Path C:\Users\Admin\AppData\Roaming\bf045808586a24\cred64.dll
                • Size 126KB
                • SHA256 d23147a448d24f81d81d4bb226f3fc968386792c0987dda75917104b5ecd9d5a
                • MD5 SHA1 SHA512 SSDEEP

                cred64.dll

                • Path C:\Users\Admin\AppData\Roaming\bf045808586a24\cred64.dll
                • Size 126KB
                • SHA256 d23147a448d24f81d81d4bb226f3fc968386792c0987dda75917104b5ecd9d5a
                • MD5 SHA1 SHA512 SSDEEP

                memory/2488-145-0x0000000000400000-0x0000000000593000-memory.dmp

                memory/2488-144-0x0000000000930000-0x000000000094F000-memory.dmp

                memory/2492-132-0x000000000083D000-0x000000000085C000-memory.dmp

                memory/2492-139-0x0000000000400000-0x0000000000593000-memory.dmp

                memory/2492-138-0x000000000083D000-0x000000000085C000-memory.dmp

                memory/2492-134-0x0000000000400000-0x0000000000593000-memory.dmp

                memory/2492-133-0x00000000022D0000-0x000000000230E000-memory.dmp

                memory/2568-150-0x00000000008D0000-0x00000000008EF000-memory.dmp

                memory/2568-151-0x0000000000400000-0x0000000000593000-memory.dmp

                memory/4144-153-0x00000000006B0000-0x00000000006CF000-memory.dmp

                memory/4144-154-0x0000000000400000-0x0000000000593000-memory.dmp

                memory/4892-142-0x0000000000400000-0x0000000000593000-memory.dmp

                memory/4892-141-0x000000000072D000-0x000000000074C000-memory.dmp