Analysis

  • max time kernel
    149s
  • max time network
    103s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-05-2024 16:34

General

  • Target

    dc761eac4c87a5c09e97686617456d00_NEAS.exe

  • Size

    72KB

  • MD5

    dc761eac4c87a5c09e97686617456d00

  • SHA1

    d7d50f98a21e2df791c8d8bcb64da8492095607f

  • SHA256

    863aa451400b0264d9b7ebd5c3fdfbd38f73ee299ed2d0574324d4465b67241e

  • SHA512

    5202cb87c7329ef63795118628a8dd8969bb09cffa156be0934f21541afbf96fef8813dfd09f29e2d09940bc868c402006697230a5ed6390c4b05331c6daab3e

  • SSDEEP

    1536:xKoSST4YsYpWvd5cvWU11m+b8gkIOUlzt9rerEqSy5:g1S6jvCJ9QIrber/5

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:616
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:3540
        • C:\Users\Admin\AppData\Local\Temp\dc761eac4c87a5c09e97686617456d00_NEAS.exe
          "C:\Users\Admin\AppData\Local\Temp\dc761eac4c87a5c09e97686617456d00_NEAS.exe"
          2⤵
          • Drops file in System32 directory
          • Suspicious use of WriteProcessMemory
          PID:4840
          • C:\Windows\SysWOW64\aggeagoak-acooc.exe
            "C:\Windows\SysWOW64\aggeagoak-acooc.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:3444
            • C:\Windows\SysWOW64\aggeagoak-acooc.exe
              --k33p
              4⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              PID:2152

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Windows\SysWOW64\aggeagoak-acooc.exe

        Filesize

        70KB

        MD5

        a69c9e0c2691e18b8a106475eb6035f5

        SHA1

        62596ef64213ff1bafff97829ce8073290376e13

        SHA256

        1a66065e988edf4cabf2e0df3809cfc807c880c7bdcb6247ac259f890da6acd9

        SHA512

        d63b0bdeec4ad96035cd24d2b1e93197e86350c4482d07ee2ea4c275407c5b3b2918fbb1b30cb01a091f870b8eba77ae0bd2c0fb24fdb019d9cb44226db4fabc

      • C:\Windows\SysWOW64\kkeaguc.exe

        Filesize

        72KB

        MD5

        18df4d06c42b54de0a03205e57448071

        SHA1

        48b8c8fcaafa783e800412f72c9b2a0c9f49ee73

        SHA256

        8e85a10ff552617ce198545db6327941731b21756a554b20ae991f45ac2549f2

        SHA512

        7581ca96691e765be270cb8ffd0d290e404cb1a6c392de918b224fd1cffd8a3fa7db161e831d405a3033d321f68df78735b6686825475e6ed24ea05be9368807

      • C:\Windows\SysWOW64\mnohuc-oucix.exe

        Filesize

        73KB

        MD5

        7a4ae121c18bbe546abe6776bd7feaab

        SHA1

        ab7fe8e2c910f9362118e2378a44defd87437969

        SHA256

        26d76703cf2c6cafa51e3a47f9b981d272da53893f719d45065059a41c9fcaf3

        SHA512

        bbea4e6b49fbcd1ecdd870522ebab85dcded2df2baf2a44bd82f3898c40e519bb66bac4494de61abfb3561a44ee4621ab6271246318f623f57c53a01004557f3

      • C:\Windows\SysWOW64\ougpicat-eamooc.dll

        Filesize

        5KB

        MD5

        f37b21c00fd81bd93c89ce741a88f183

        SHA1

        b2796500597c68e2f5638e1101b46eaf32676c1c

        SHA256

        76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0

        SHA512

        252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4

      • memory/2152-48-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/3444-47-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/4840-3-0x0000000000400000-0x0000000000403000-memory.dmp

        Filesize

        12KB