Analysis

  • max time kernel
    207s
  • max time network
    219s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/11/2022, 13:37

General

  • Target
    file.exe
  • Size 377KB
  • Sample221119-qwsxhsdd39
  • SHA256 a4b4703c12f17bdef054d08506c676542e31af522ddd1669f1cecd68fec7cb34
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • amadey

Version
  • 3.50

C2
  • 193.56.146.194/h49vlBP/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 1 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 1 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 12 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:988
    • 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:4724
      • 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:2868
      • 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:4088
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -executionpolicy remotesigned -File "C:\Users\Admin\AppData\Local\Temp\1000080041\1.ps1"
        3⤵
          PID:2012
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 988 -s 1136
        2⤵
        • Program crash
        PID:4532
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 988 -ip 988
      1⤵
        PID:4224

      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 377KB
            • SHA256 a4b4703c12f17bdef054d08506c676542e31af522ddd1669f1cecd68fec7cb34
            • MD5 SHA1 SHA512 SSDEEP

            rovwer.exe

            • Path C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe
            • Size 377KB
            • SHA256 a4b4703c12f17bdef054d08506c676542e31af522ddd1669f1cecd68fec7cb34
            • MD5 SHA1 SHA512 SSDEEP

            cred64.dll

            • Path C:\Users\Admin\AppData\Roaming\bf045808586a24\cred64.dll
            • Size 126KB
            • SHA256 de81531468982b689451e85d249214d0aa484e2ffedfd32c58d43cf879f29ded
            • MD5 SHA1 SHA512 SSDEEP

            cred64.dll

            • Path C:\Users\Admin\AppData\Roaming\bf045808586a24\cred64.dll
            • Size 126KB
            • SHA256 de81531468982b689451e85d249214d0aa484e2ffedfd32c58d43cf879f29ded
            • MD5 SHA1 SHA512 SSDEEP

            memory/988-135-0x0000000000400000-0x0000000000861000-memory.dmp

            memory/988-132-0x0000000000A83000-0x0000000000AA2000-memory.dmp

            memory/988-134-0x0000000000A83000-0x0000000000AA2000-memory.dmp

            memory/988-150-0x0000000000A83000-0x0000000000AA2000-memory.dmp

            memory/988-142-0x0000000000400000-0x0000000000861000-memory.dmp

            memory/988-133-0x0000000000960000-0x000000000099E000-memory.dmp

            memory/2012-149-0x00000000059A0000-0x0000000005FC8000-memory.dmp

            memory/2012-148-0x0000000002E50000-0x0000000002E86000-memory.dmp

            memory/4724-141-0x0000000000400000-0x0000000000861000-memory.dmp

            memory/4724-140-0x00000000001C0000-0x00000000001FE000-memory.dmp

            memory/4724-139-0x00000000009A3000-0x00000000009C2000-memory.dmp