Analysis

  • max time kernel
    137s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-03-2024 21:39

General

  • Target

    b9b8a0f4d78315c436c9d6b6699952fe.exe

  • Size

    400KB

  • MD5

    b9b8a0f4d78315c436c9d6b6699952fe

  • SHA1

    eb01d19aba86beed4e5ecf88bb7b1565531efa07

  • SHA256

    32e4d84e634fd4d7c979f0008fe32c21a0713eed09caba58e85dca3bb9e772dc

  • SHA512

    ea8ace598443ebccc21fb0e30aff121604ccb28d4bda9e7dd44a2c5d92bfd61467520b75a427a7d79aefcc6d492b04bf6fc1a45b5f3f80583bf3437c87990814

  • SSDEEP

    6144:4u5g79cOY/LnJCPEQ42F+40HG5W2s4ugIueUQjiEzMtm6187Un:4u5g79cV/QELG+40HG504nIuRQjizRn

Malware Config

Extracted

Family

metasploit

Version

encoder/fnstenv_mov

Signatures

  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • Executes dropped EXE 10 IoCs
  • Drops file in System32 directory 22 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b9b8a0f4d78315c436c9d6b6699952fe.exe
    "C:\Users\Admin\AppData\Local\Temp\b9b8a0f4d78315c436c9d6b6699952fe.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of WriteProcessMemory
    PID:2320
    • C:\Windows\SysWOW64\taskmrg.exe
      C:\Windows\system32\taskmrg.exe 1196 "C:\Users\Admin\AppData\Local\Temp\b9b8a0f4d78315c436c9d6b6699952fe.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:2100
      • C:\Windows\SysWOW64\taskmrg.exe
        C:\Windows\system32\taskmrg.exe 1148 "C:\Windows\SysWOW64\taskmrg.exe"
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Suspicious use of WriteProcessMemory
        PID:4276
        • C:\Windows\SysWOW64\taskmrg.exe
          C:\Windows\system32\taskmrg.exe 1124 "C:\Windows\SysWOW64\taskmrg.exe"
          4⤵
          • Executes dropped EXE
          • Drops file in System32 directory
          • Suspicious use of WriteProcessMemory
          PID:3012
          • C:\Windows\SysWOW64\taskmrg.exe
            C:\Windows\system32\taskmrg.exe 1120 "C:\Windows\SysWOW64\taskmrg.exe"
            5⤵
            • Executes dropped EXE
            • Drops file in System32 directory
            • Suspicious use of WriteProcessMemory
            PID:2864
            • C:\Windows\SysWOW64\taskmrg.exe
              C:\Windows\system32\taskmrg.exe 1132 "C:\Windows\SysWOW64\taskmrg.exe"
              6⤵
              • Executes dropped EXE
              • Drops file in System32 directory
              • Suspicious use of WriteProcessMemory
              PID:4056
              • C:\Windows\SysWOW64\taskmrg.exe
                C:\Windows\system32\taskmrg.exe 1128 "C:\Windows\SysWOW64\taskmrg.exe"
                7⤵
                • Executes dropped EXE
                • Drops file in System32 directory
                • Suspicious use of WriteProcessMemory
                PID:2232
                • C:\Windows\SysWOW64\taskmrg.exe
                  C:\Windows\system32\taskmrg.exe 1156 "C:\Windows\SysWOW64\taskmrg.exe"
                  8⤵
                  • Executes dropped EXE
                  • Drops file in System32 directory
                  • Suspicious use of WriteProcessMemory
                  PID:3780
                  • C:\Windows\SysWOW64\taskmrg.exe
                    C:\Windows\system32\taskmrg.exe 1100 "C:\Windows\SysWOW64\taskmrg.exe"
                    9⤵
                    • Executes dropped EXE
                    • Drops file in System32 directory
                    • Suspicious use of WriteProcessMemory
                    PID:1348
                    • C:\Windows\SysWOW64\taskmrg.exe
                      C:\Windows\system32\taskmrg.exe 1096 "C:\Windows\SysWOW64\taskmrg.exe"
                      10⤵
                      • Executes dropped EXE
                      • Drops file in System32 directory
                      • Suspicious use of WriteProcessMemory
                      PID:116
                      • C:\Windows\SysWOW64\taskmrg.exe
                        C:\Windows\system32\taskmrg.exe 1152 "C:\Windows\SysWOW64\taskmrg.exe"
                        11⤵
                        • Executes dropped EXE
                        • Drops file in System32 directory
                        PID:3568

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\taskmrg.exe

    Filesize

    400KB

    MD5

    b9b8a0f4d78315c436c9d6b6699952fe

    SHA1

    eb01d19aba86beed4e5ecf88bb7b1565531efa07

    SHA256

    32e4d84e634fd4d7c979f0008fe32c21a0713eed09caba58e85dca3bb9e772dc

    SHA512

    ea8ace598443ebccc21fb0e30aff121604ccb28d4bda9e7dd44a2c5d92bfd61467520b75a427a7d79aefcc6d492b04bf6fc1a45b5f3f80583bf3437c87990814