Analysis

  • max time kernel
    183s
  • max time network
    198s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/12/2022, 22:11

General

  • Target

    a947f12146bac968e04f955ec03fd56e7f94343b98f9b49eb988e9b6aefc3f8f.exe

  • Size

    423KB

  • MD5

    9e9df779a547699c79f19a29a4ec7650

  • SHA1

    5b2aa643807e06dd7064fc94a997e44b213c6163

  • SHA256

    a947f12146bac968e04f955ec03fd56e7f94343b98f9b49eb988e9b6aefc3f8f

  • SHA512

    78798143c34ed26ad0278162aee244670385f33b9666e7b038b51f3bc9bfda74fac4459a0369f707311fc171d4302a6d4229c2d08a0063bc137cb48841317638

  • SSDEEP

    6144:wCbqZQLNLxw5KUYAilo5CCQllUuyMTljofAWcoBlC7NOUs0yaVe:wC+Z6NFw5p2Cb8lobcWC7NOH3

Malware Config

Extracted

Family

amadey

Version

3.50

C2

31.41.244.167/v7eWcjs/index.php

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
  • Downloads MZ/PE file
  • Executes dropped EXE 2 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 2 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\a947f12146bac968e04f955ec03fd56e7f94343b98f9b49eb988e9b6aefc3f8f.exe
    "C:\Users\Admin\AppData\Local\Temp\a947f12146bac968e04f955ec03fd56e7f94343b98f9b49eb988e9b6aefc3f8f.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5088
    • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      "C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:4280
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN gntuud.exe /TR "C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe" /F
        3⤵
        • Creates scheduled task(s)
        PID:1824
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll, Main
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • outlook_win_path
        PID:4244
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 904
      2⤵
      • Program crash
      PID:1312
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 5088 -ip 5088
    1⤵
      PID:2948
    • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      1⤵
      • Executes dropped EXE
      PID:2400
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 424
        2⤵
        • Program crash
        PID:4512
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 2400 -ip 2400
      1⤵
        PID:964

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe

              Filesize

              423KB

              MD5

              9e9df779a547699c79f19a29a4ec7650

              SHA1

              5b2aa643807e06dd7064fc94a997e44b213c6163

              SHA256

              a947f12146bac968e04f955ec03fd56e7f94343b98f9b49eb988e9b6aefc3f8f

              SHA512

              78798143c34ed26ad0278162aee244670385f33b9666e7b038b51f3bc9bfda74fac4459a0369f707311fc171d4302a6d4229c2d08a0063bc137cb48841317638

            • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe

              Filesize

              423KB

              MD5

              9e9df779a547699c79f19a29a4ec7650

              SHA1

              5b2aa643807e06dd7064fc94a997e44b213c6163

              SHA256

              a947f12146bac968e04f955ec03fd56e7f94343b98f9b49eb988e9b6aefc3f8f

              SHA512

              78798143c34ed26ad0278162aee244670385f33b9666e7b038b51f3bc9bfda74fac4459a0369f707311fc171d4302a6d4229c2d08a0063bc137cb48841317638

            • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe

              Filesize

              423KB

              MD5

              9e9df779a547699c79f19a29a4ec7650

              SHA1

              5b2aa643807e06dd7064fc94a997e44b213c6163

              SHA256

              a947f12146bac968e04f955ec03fd56e7f94343b98f9b49eb988e9b6aefc3f8f

              SHA512

              78798143c34ed26ad0278162aee244670385f33b9666e7b038b51f3bc9bfda74fac4459a0369f707311fc171d4302a6d4229c2d08a0063bc137cb48841317638

            • C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll

              Filesize

              126KB

              MD5

              aebf8cd9ea982decded5ee6f3777c6d7

              SHA1

              406e723158cd5697503d1d04839d3bc7a5051603

              SHA256

              104af593683398f0980f2c86e6513b8c1b7dededc1f924d4693ad92410d51a62

              SHA512

              f28fbb9b155348a6aca1105abf6f88640bb68374c07e023a7c9e06577006002d09b53b7629923c2486d7e9811f7254a296d19e566940077431e5089b06a13981

            • C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll

              Filesize

              126KB

              MD5

              aebf8cd9ea982decded5ee6f3777c6d7

              SHA1

              406e723158cd5697503d1d04839d3bc7a5051603

              SHA256

              104af593683398f0980f2c86e6513b8c1b7dededc1f924d4693ad92410d51a62

              SHA512

              f28fbb9b155348a6aca1105abf6f88640bb68374c07e023a7c9e06577006002d09b53b7629923c2486d7e9811f7254a296d19e566940077431e5089b06a13981

            • memory/2400-144-0x0000000000854000-0x0000000000872000-memory.dmp

              Filesize

              120KB

            • memory/2400-145-0x0000000000400000-0x000000000046F000-memory.dmp

              Filesize

              444KB

            • memory/4280-139-0x0000000000400000-0x000000000046F000-memory.dmp

              Filesize

              444KB

            • memory/4280-138-0x0000000000643000-0x0000000000662000-memory.dmp

              Filesize

              124KB

            • memory/5088-140-0x00000000006C2000-0x00000000006E1000-memory.dmp

              Filesize

              124KB

            • memory/5088-141-0x0000000000400000-0x000000000046F000-memory.dmp

              Filesize

              444KB

            • memory/5088-132-0x00000000006C2000-0x00000000006E1000-memory.dmp

              Filesize

              124KB

            • memory/5088-134-0x0000000000400000-0x000000000046F000-memory.dmp

              Filesize

              444KB

            • memory/5088-133-0x00000000020A0000-0x00000000020DE000-memory.dmp

              Filesize

              248KB