Analysis

  • max time kernel
    184s
  • max time network
    194s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/11/2022, 23:32

General

  • Target
    file.exe
  • Size 244KB
  • Sample221130-3ja76aaa2z
  • SHA256 b683607df14ae608daf23153c5714922fc1ccf1bd2f298ac7647e98eb59cc2cf
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • amadey

Version
  • 3.50

C2
  • 31.41.244.17/hfk3vK9/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
  • Executes dropped EXE 4 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 5 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:4360
    • 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:2144
      • 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:1964
      • 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:3388
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 876
      2⤵
      • Program crash
      PID:4680
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4360 -ip 4360
    1⤵
      PID:2092
    • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      1⤵
      • Executes dropped EXE
      PID:4892
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4892 -s 460
        2⤵
        • Program crash
        PID:2992
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4892 -s 476
        2⤵
        • Program crash
        PID:3800
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4892 -ip 4892
      1⤵
        PID:1796
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4892 -ip 4892
        1⤵
          PID:3572
        • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
          C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
          1⤵
          • Executes dropped EXE
          PID:540
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 540 -s 480
            2⤵
            • Program crash
            PID:2388
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 540 -ip 540
          1⤵
            PID:3472
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 540 -ip 540
            1⤵
              PID:3080
            • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
              C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
              1⤵
              • Executes dropped EXE
              PID:3496
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3496 -s 460
                2⤵
                • Program crash
                PID:4456
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3496 -ip 3496
              1⤵
                PID:4516

              Network

                    MITRE ATT&CK Enterprise v6

                    Replay Monitor

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                    Downloads

                    gntuud.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
                    • Size 244KB
                    • SHA256 b683607df14ae608daf23153c5714922fc1ccf1bd2f298ac7647e98eb59cc2cf
                    • MD5 SHA1 SHA512 SSDEEP

                    gntuud.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
                    • Size 244KB
                    • SHA256 b683607df14ae608daf23153c5714922fc1ccf1bd2f298ac7647e98eb59cc2cf
                    • MD5 SHA1 SHA512 SSDEEP

                    gntuud.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
                    • Size 244KB
                    • SHA256 b683607df14ae608daf23153c5714922fc1ccf1bd2f298ac7647e98eb59cc2cf
                    • MD5 SHA1 SHA512 SSDEEP

                    gntuud.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
                    • Size 244KB
                    • SHA256 b683607df14ae608daf23153c5714922fc1ccf1bd2f298ac7647e98eb59cc2cf
                    • MD5 SHA1 SHA512 SSDEEP

                    gntuud.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
                    • Size 244KB
                    • SHA256 b683607df14ae608daf23153c5714922fc1ccf1bd2f298ac7647e98eb59cc2cf
                    • MD5 SHA1 SHA512 SSDEEP

                    cred64.dll

                    • Path C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
                    • Size 126KB
                    • SHA256 d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
                    • MD5 SHA1 SHA512 SSDEEP

                    cred64.dll

                    • Path C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
                    • Size 126KB
                    • SHA256 d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
                    • MD5 SHA1 SHA512 SSDEEP

                    memory/540-158-0x0000000000400000-0x0000000000472000-memory.dmp

                    memory/540-157-0x00000000007B0000-0x00000000007CF000-memory.dmp

                    memory/540-156-0x0000000000400000-0x0000000000472000-memory.dmp

                    memory/540-155-0x00000000007B0000-0x00000000007CF000-memory.dmp

                    memory/2144-139-0x000000000079C000-0x00000000007BB000-memory.dmp

                    memory/2144-144-0x0000000000400000-0x0000000000472000-memory.dmp

                    memory/2144-143-0x000000000079C000-0x00000000007BB000-memory.dmp

                    memory/2144-140-0x0000000000400000-0x0000000000472000-memory.dmp

                    memory/3496-161-0x0000000000400000-0x0000000000472000-memory.dmp

                    memory/3496-160-0x00000000004CF000-0x00000000004EE000-memory.dmp

                    memory/4360-141-0x00000000006DD000-0x00000000006FC000-memory.dmp

                    memory/4360-142-0x0000000000400000-0x0000000000472000-memory.dmp

                    memory/4360-132-0x00000000006DD000-0x00000000006FC000-memory.dmp

                    memory/4360-134-0x0000000000400000-0x0000000000472000-memory.dmp

                    memory/4360-133-0x00000000004F0000-0x000000000052E000-memory.dmp

                    memory/4892-153-0x0000000000400000-0x0000000000472000-memory.dmp

                    memory/4892-149-0x0000000000480000-0x0000000000580000-memory.dmp

                    memory/4892-148-0x0000000000400000-0x0000000000472000-memory.dmp

                    memory/4892-147-0x0000000000480000-0x0000000000580000-memory.dmp