Analysis

  • max time kernel
    74s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/11/2022, 07:47

General

  • Target
    file.exe
  • Size 221KB
  • Sample221109-jmh8dsgegj
  • SHA256 ae7c9e849e06f8e17846aef42fcc5128095d16a2ab93dfc69b3a4e04d6b44299
  • 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 4 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 2 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 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:540
    • 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:620
      • 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:2480
      • 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:1088
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 540 -s 880
      2⤵
      • Program crash
      PID:932
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 540 -ip 540
    1⤵
      PID:3212

    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 221KB
          • SHA256 ae7c9e849e06f8e17846aef42fcc5128095d16a2ab93dfc69b3a4e04d6b44299
          • MD5 SHA1 SHA512 SSDEEP

          rovwer.exe

          • Path C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe
          • Size 221KB
          • SHA256 ae7c9e849e06f8e17846aef42fcc5128095d16a2ab93dfc69b3a4e04d6b44299
          • 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

          cred64.dll

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

          memory/540-133-0x0000000000860000-0x000000000089E000-memory.dmp

          memory/540-132-0x00000000008FD000-0x000000000091C000-memory.dmp

          memory/540-134-0x0000000000400000-0x0000000000593000-memory.dmp

          memory/540-138-0x00000000008FD000-0x000000000091C000-memory.dmp

          memory/540-139-0x0000000000400000-0x0000000000593000-memory.dmp

          memory/620-144-0x0000000000400000-0x0000000000593000-memory.dmp

          memory/620-143-0x000000000082D000-0x000000000084C000-memory.dmp

          memory/620-142-0x0000000000400000-0x0000000000593000-memory.dmp

          memory/620-141-0x000000000082D000-0x000000000084C000-memory.dmp

          memory/1088-149-0x00000000006B0000-0x00000000006D4000-memory.dmp