Analysis

  • max time kernel
    116s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/11/2022, 23:56

General

  • Target
    file.exe
  • Size 231KB
  • Sample221112-3yzt3aaa34
  • SHA256 a0ab98e9e2136a860291deb49e5e4f72ea70a4fa869e049b3fc3cb6737c2338e
  • 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 3 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 3 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:4804
    • 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:4808
      • 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:1468
      • 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:1352
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4804 -s 1136
      2⤵
      • Program crash
      PID:1616
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4804 -ip 4804
    1⤵
      PID:4952
    • C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe
      C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe
      1⤵
      • Executes dropped EXE
      PID:3800
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3800 -s 424
        2⤵
        • Program crash
        PID:1116
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 3800 -ip 3800
      1⤵
        PID:2832
      • C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe
        C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe
        1⤵
        • Executes dropped EXE
        PID:2296
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2296 -s 428
          2⤵
          • Program crash
          PID:4588
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 2296 -ip 2296
        1⤵
          PID:4944

        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 231KB
              • SHA256 a0ab98e9e2136a860291deb49e5e4f72ea70a4fa869e049b3fc3cb6737c2338e
              • MD5 SHA1 SHA512 SSDEEP

              rovwer.exe

              • Path C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe
              • Size 231KB
              • SHA256 a0ab98e9e2136a860291deb49e5e4f72ea70a4fa869e049b3fc3cb6737c2338e
              • MD5 SHA1 SHA512 SSDEEP

              rovwer.exe

              • Path C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe
              • Size 231KB
              • SHA256 a0ab98e9e2136a860291deb49e5e4f72ea70a4fa869e049b3fc3cb6737c2338e
              • MD5 SHA1 SHA512 SSDEEP

              rovwer.exe

              • Path C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe
              • Size 231KB
              • SHA256 a0ab98e9e2136a860291deb49e5e4f72ea70a4fa869e049b3fc3cb6737c2338e
              • 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/1352-150-0x00000000006F0000-0x0000000000714000-memory.dmp

              memory/2296-154-0x000000000088C000-0x00000000008AA000-memory.dmp

              memory/2296-155-0x0000000000400000-0x0000000000596000-memory.dmp

              memory/3800-152-0x0000000000400000-0x0000000000596000-memory.dmp

              memory/3800-151-0x00000000006DC000-0x00000000006FB000-memory.dmp

              memory/4804-142-0x0000000000400000-0x0000000000596000-memory.dmp

              memory/4804-141-0x0000000000619000-0x0000000000638000-memory.dmp

              memory/4804-132-0x0000000000619000-0x0000000000638000-memory.dmp

              memory/4804-134-0x0000000000400000-0x0000000000596000-memory.dmp

              memory/4804-133-0x00000000022F0000-0x000000000232E000-memory.dmp

              memory/4808-138-0x0000000000678000-0x0000000000697000-memory.dmp

              memory/4808-144-0x0000000000400000-0x0000000000596000-memory.dmp

              memory/4808-143-0x0000000000678000-0x0000000000697000-memory.dmp

              memory/4808-139-0x0000000000400000-0x0000000000596000-memory.dmp