Analysis

  • max time kernel
    149s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    22-05-2024 01:34

General

  • Target

    7ad5b39c88312bddcc516109f35f10ed13460b4f4fc7bfb35d4bb2b5e4c3bfca.exe

  • Size

    70KB

  • MD5

    9f90ae6034e7a6a0e340c3a09d69e01a

  • SHA1

    03261d5a939c47748f3feef739764ad13f99e701

  • SHA256

    7ad5b39c88312bddcc516109f35f10ed13460b4f4fc7bfb35d4bb2b5e4c3bfca

  • SHA512

    8217958e7ea3194578203c34dd2c704cf77f46fa973a1c957a046d1f4e29f995201315e51635e1f644e11d54dca8178641c3e135cb92d953a6991c0319c26129

  • SSDEEP

    1536:1teqKDlXvCDB04f5Gn/L8FlADNt3d1Hw8Dz:Olg35GTslA5t3/w8n

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
  • Loads dropped DLL 3 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:436
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:1216
        • C:\Users\Admin\AppData\Local\Temp\7ad5b39c88312bddcc516109f35f10ed13460b4f4fc7bfb35d4bb2b5e4c3bfca.exe
          "C:\Users\Admin\AppData\Local\Temp\7ad5b39c88312bddcc516109f35f10ed13460b4f4fc7bfb35d4bb2b5e4c3bfca.exe"
          2⤵
          • Loads dropped DLL
          • Drops file in System32 directory
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1968
          • C:\Windows\SysWOW64\elboaxuv-otid.exe
            "C:\Windows\system32\elboaxuv-otid.exe"
            3⤵
            • Windows security bypass
            • Modifies Installed Components in the registry
            • Sets file execution options in registry
            • Executes dropped EXE
            • Loads dropped DLL
            • Windows security modification
            • Modifies WinLogon
            • Drops file in System32 directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:2964
            • C:\Windows\SysWOW64\elboaxuv-otid.exe
              --k33p
              4⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              PID:2556

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Windows\SysWOW64\akmufax-ocac.exe

        Filesize

        73KB

        MD5

        bb93935e827754a2908ff235ff727d8d

        SHA1

        718d33dae706c81c27cb0986e58b60a3519b2d25

        SHA256

        ed95e00df873048cec4a5cee1d99da0dcd29e22c9fcec53e469f11c5f6a05487

        SHA512

        4f7879b2730203f61199b388ed74a27c2b842a40ebe7fd8d20cabbeeea22716f018fcbacc9ad59df5a1714d723345421fc8573f20269c879862a86b24a6b62f9

      • C:\Windows\SysWOW64\brootud.exe

        Filesize

        72KB

        MD5

        9a7479ebc686dc24257f577223fca982

        SHA1

        2387aaedb9eb94bb8fb644c6976a35dabc54e6e1

        SHA256

        274f32a6c494526ae5e5260b7d72f7870d3ada2e0eff8a9ea3c4fa4b4a745d3e

        SHA512

        f0295c195bcc82d687cf61e041c5b5b69349f54d629f85756d35a1f37327c4fa22c6ad18cfd3da7e5d2358554bf3207e81a350f4028960cbac7e9a1fbfd91fdc

      • C:\Windows\SysWOW64\uhsoahec-adac.dll

        Filesize

        5KB

        MD5

        f37b21c00fd81bd93c89ce741a88f183

        SHA1

        b2796500597c68e2f5638e1101b46eaf32676c1c

        SHA256

        76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0

        SHA512

        252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4

      • \Windows\SysWOW64\elboaxuv-otid.exe

        Filesize

        70KB

        MD5

        9f90ae6034e7a6a0e340c3a09d69e01a

        SHA1

        03261d5a939c47748f3feef739764ad13f99e701

        SHA256

        7ad5b39c88312bddcc516109f35f10ed13460b4f4fc7bfb35d4bb2b5e4c3bfca

        SHA512

        8217958e7ea3194578203c34dd2c704cf77f46fa973a1c957a046d1f4e29f995201315e51635e1f644e11d54dca8178641c3e135cb92d953a6991c0319c26129

      • memory/1968-10-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/2556-56-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/2964-55-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB