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Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/05/2024, 14:28

General

  • Target

    5529a5a7ea8c8e38dc804d6132bb34c0.exe

  • Size

    71KB

  • MD5

    5529a5a7ea8c8e38dc804d6132bb34c0

  • SHA1

    c53e18a13941bca8a8ceb3a248beb55973b41576

  • SHA256

    288564ff199c2e28306e39c2ece0d0ff903dfa3e0f5ee615df319f50c0b90622

  • SHA512

    4a45b69f1e0a2e3cdb6188683733d7dca6384e559c41e7a2d0c0584ec88855b5b15e9eeedb8e4a36a73df1d3bfee9e871d587b4707aa1ef4a45ebdc929c4a7bc

  • SSDEEP

    1536:1teqKDlXvCDB04f5Gn/L8FlADNt3d1Hw8slHq:Olg35GTslA5t3/w8x

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 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:596
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:3528
        • C:\Users\Admin\AppData\Local\Temp\5529a5a7ea8c8e38dc804d6132bb34c0.exe
          "C:\Users\Admin\AppData\Local\Temp\5529a5a7ea8c8e38dc804d6132bb34c0.exe"
          2⤵
          • Drops file in System32 directory
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:3160
          • C:\Windows\SysWOW64\otkeamim.exe
            "C:\Windows\system32\otkeamim.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:4280
            • C:\Windows\SysWOW64\otkeamim.exe
              --k33p
              4⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              PID:2516

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Windows\SysWOW64\ikfusoax-imat.dll

        Filesize

        5KB

        MD5

        f37b21c00fd81bd93c89ce741a88f183

        SHA1

        b2796500597c68e2f5638e1101b46eaf32676c1c

        SHA256

        76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0

        SHA512

        252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4

      • C:\Windows\SysWOW64\otkeamim.exe

        Filesize

        71KB

        MD5

        5529a5a7ea8c8e38dc804d6132bb34c0

        SHA1

        c53e18a13941bca8a8ceb3a248beb55973b41576

        SHA256

        288564ff199c2e28306e39c2ece0d0ff903dfa3e0f5ee615df319f50c0b90622

        SHA512

        4a45b69f1e0a2e3cdb6188683733d7dca6384e559c41e7a2d0c0584ec88855b5b15e9eeedb8e4a36a73df1d3bfee9e871d587b4707aa1ef4a45ebdc929c4a7bc

      • C:\Windows\SysWOW64\ourmubag-foas.exe

        Filesize

        74KB

        MD5

        422589e10d5a9a0b610dc6a66987f8e2

        SHA1

        3e1004f6f1e35df93692441743dc6d6e17009e45

        SHA256

        cf34a3e2710e89d0308d904c715bde3ee8e26b8acdf593e066f74cb974d206fa

        SHA512

        e296b1aa1671c79f43807fcd90bc75e7df83042f447a5cac5bf650199ba7847c71acda93498094854a47e3fcceabb30c65b37a8a6fab61f04a0e3e9c177ee9ab

      • C:\Windows\SysWOW64\ugleanob.exe

        Filesize

        73KB

        MD5

        3a722805f4e6fb2d9ca9dc7c9f13def2

        SHA1

        974eb113bb49caa847f726138820d064018c4cad

        SHA256

        f3304be66721e7be46f4ce801fa747e37e95d86f819808d179f1d149c0cdf2e3

        SHA512

        b7b0434319b1bbd03612fdf8048774b7b9bf5f777bba8ef1e09d53178a4fced575f9232c6b26aea82aa4331e6d9f8cfb4160954f0f4718f3535630432c713d91

      • memory/2516-50-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/3160-5-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/4280-49-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB