Analysis

  • max time kernel
    293s
  • max time network
    360s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/12/2022, 23:31

General

  • Target
    file.exe
  • Size 323KB
  • Sample221207-3hpddsbe31
  • SHA256 9632e27d643501e3c0dd0b772500c007e7e538317c449d2b682a401550958089
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Family
  • amadey

Version
  • 3.50

C2
  • 31.41.244.237/jg94cVd30f/index.php

Signatures

  • Amadey

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

  • 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.

  • 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 use of WriteProcessMemory 27 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:4512
    • C:\Users\Admin\AppData\Local\Temp\9c69749b54\gntuud.exe
      "C:\Users\Admin\AppData\Local\Temp\9c69749b54\gntuud.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:2160
      • 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\9c69749b54\gntuud.exe" /F
        3⤵
        • Creates scheduled task(s)
        PID:4036
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k echo Y|CACLS "gntuud.exe" /P "Admin:N"&&CACLS "gntuud.exe" /P "Admin:R" /E&&echo Y|CACLS "..\9c69749b54" /P "Admin:N"&&CACLS "..\9c69749b54" /P "Admin:R" /E&&Exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3680
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /S /D /c" echo Y"
          4⤵
            PID:3052
          • C:\Windows\SysWOW64\cacls.exe
            CACLS "gntuud.exe" /P "Admin:N"
            4⤵
              PID:5080
            • C:\Windows\SysWOW64\cacls.exe
              CACLS "gntuud.exe" /P "Admin:R" /E
              4⤵
                PID:2876
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /S /D /c" echo Y"
                4⤵
                  PID:3764
                • C:\Windows\SysWOW64\cacls.exe
                  CACLS "..\9c69749b54" /P "Admin:N"
                  4⤵
                    PID:2684
                  • C:\Windows\SysWOW64\cacls.exe
                    CACLS "..\9c69749b54" /P "Admin:R" /E
                    4⤵
                      PID:3272
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 1140
                  2⤵
                  • Program crash
                  PID:4292
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4512 -ip 4512
                1⤵
                  PID:3600

                Network

                      MITRE ATT&CK Enterprise v6

                      Replay Monitor

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                      Downloads

                      gntuud.exe

                      • Path C:\Users\Admin\AppData\Local\Temp\9c69749b54\gntuud.exe
                      • Size 323KB
                      • SHA256 9632e27d643501e3c0dd0b772500c007e7e538317c449d2b682a401550958089
                      • MD5 SHA1 SHA512 SSDEEP

                      gntuud.exe

                      • Path C:\Users\Admin\AppData\Local\Temp\9c69749b54\gntuud.exe
                      • Size 323KB
                      • SHA256 9632e27d643501e3c0dd0b772500c007e7e538317c449d2b682a401550958089
                      • MD5 SHA1 SHA512 SSDEEP

                      memory/2160-138-0x0000000000663000-0x0000000000682000-memory.dmp

                      memory/2160-139-0x0000000000400000-0x000000000046D000-memory.dmp

                      memory/4512-134-0x0000000000400000-0x000000000046D000-memory.dmp

                      memory/4512-132-0x00000000007E3000-0x0000000000802000-memory.dmp

                      memory/4512-133-0x0000000000720000-0x000000000075E000-memory.dmp