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Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/05/2024, 03:50

General

  • Target

    d3cd7c36e1f9c76a1ce0a24324bcf264806560930ff07fc56273ba7c63f706a5.exe

  • Size

    72KB

  • MD5

    066858d7dedd390b8fdde347971c9f32

  • SHA1

    1909ff5bc20b7609d4d95011c02391fab5146136

  • SHA256

    d3cd7c36e1f9c76a1ce0a24324bcf264806560930ff07fc56273ba7c63f706a5

  • SHA512

    6e0e1a070a04a7fbce109f4614e8f27da0523fbffb35b25f39e442d28cbe6429a6ab34390acfa476469b1e9825f8c49f8ff3a08f4144e6ecddf9174130aa8af8

  • SSDEEP

    768:x/n2kOjjhB/9BIGwsSsNsOu3uwng7GIWsT/C9BJc3meUcWN075RrLhdP24wgsiEU:xJOjjhh7InsXDDVTWBeHWN075RxFJYY

Malware Config

Signatures

  • Windows security bypass 2 TTPs 4 IoCs
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • Sets file execution options in registry 2 TTPs 3 IoCs
  • Executes dropped EXE 2 IoCs
  • Windows security modification 2 TTPs 4 IoCs
  • Modifies WinLogon 2 TTPs 5 IoCs
  • Drops file in System32 directory 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:608
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:3552
        • C:\Users\Admin\AppData\Local\Temp\d3cd7c36e1f9c76a1ce0a24324bcf264806560930ff07fc56273ba7c63f706a5.exe
          "C:\Users\Admin\AppData\Local\Temp\d3cd7c36e1f9c76a1ce0a24324bcf264806560930ff07fc56273ba7c63f706a5.exe"
          2⤵
          • Drops file in System32 directory
          • Suspicious use of WriteProcessMemory
          PID:1236
          • C:\Windows\SysWOW64\ouhturuc.exe
            "C:\Windows\SysWOW64\ouhturuc.exe"
            3⤵
            • Windows security bypass
            • Modifies Installed Components in the registry
            • Sets file execution options in registry
            • Executes dropped EXE
            • Windows security modification
            • Modifies WinLogon
            • Drops file in System32 directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:1920
            • C:\Windows\SysWOW64\ouhturuc.exe
              --k33p
              4⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              PID:848

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Windows\SysWOW64\arxooroam-idoab.exe

        Filesize

        72KB

        MD5

        6bb9aaaefd2de1712bea76fd2bccf127

        SHA1

        38034f5f2d547a1a9684ced14f3be3652df20ddb

        SHA256

        9720e3b428078787657062d131e8fc9046fb13286e351e70f4028f2bff04bc31

        SHA512

        da38943f7ea3b8bdd318d61a0febfaff1a271b0095f57e947126ca80c52e750498be1149e9107a13607df67e112ee94eb08d3b34087bd292d4148b05b0938399

      • C:\Windows\SysWOW64\ivhamic.exe

        Filesize

        73KB

        MD5

        d18c11564fb119083049d4ce4ff352ac

        SHA1

        17953dcf5483e34d09b0acc154c8966332242c2c

        SHA256

        f1d23e1c5d3a8a6be49781127410d14cab89850cf2c535de644c9f3a7fe16c48

        SHA512

        fef24c933ceaf4eeac3f60f2f2a66d4db3955e792d18c3e99211489e960beeb44f50adeec99532d052a6ba1b45caf467d4a574287090c16ef5c6c2d22ba883b0

      • C:\Windows\SysWOW64\ouhturuc.exe

        Filesize

        70KB

        MD5

        5c2f0f6b2f4ef298b43976f8f7b188e0

        SHA1

        b616df2a9284cdb315349e579dea9db7082cf00e

        SHA256

        19386fe3e8150e1925ef6f84877441016a252d20e40beff32f35169d013cfa15

        SHA512

        abb7765c523b9c36bb45ff7d8f4fdae9ac5d04948c497b58a726c4c1178c3ae0c018f2b064273139715a6b40cce32ff60d40df8dd399fe599ee616f43b4053bd

      • C:\Windows\SysWOW64\ouvvidug.dll

        Filesize

        5KB

        MD5

        f37b21c00fd81bd93c89ce741a88f183

        SHA1

        b2796500597c68e2f5638e1101b46eaf32676c1c

        SHA256

        76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0

        SHA512

        252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4

      • memory/848-48-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/1236-3-0x0000000000400000-0x0000000000403000-memory.dmp

        Filesize

        12KB

      • memory/1920-47-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB