Analysis

  • max time kernel
    149s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/11/2024, 02:12

General

  • Target
    bc066aae21f879781dc09c6295181109ed4bc9acff4789850589f89f630a5524.exe
  • Size 80KB
  • Sample241113-cm8pqavcmd
  • SHA256 bc066aae21f879781dc09c6295181109ed4bc9acff4789850589f89f630a5524
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Windows security bypass 2 TTPs 4 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Event Triggered Execution: Image File Execution Options Injection 1 TTPs 3 IoCs
  • Executes dropped EXE 2 IoCs
  • Windows security modification 2 TTPs 4 IoCs
  • Indicator Removal: Clear Persistence 1 TTPs 1 IoCs

    remove IFEO.

  • Modifies WinLogon 2 TTPs 5 IoCs
  • Drops file in System32 directory 9 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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:616
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:3504
        • C:\Users\Admin\AppData\Local\Temp\bc066aae21f879781dc09c6295181109ed4bc9acff4789850589f89f630a5524.exe
          "C:\Users\Admin\AppData\Local\Temp\bc066aae21f879781dc09c6295181109ed4bc9acff4789850589f89f630a5524.exe"
          2⤵
          • Drops file in System32 directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4980
          • C:\Windows\SysWOW64\ixbivoav.exe
            "C:\Windows\system32\ixbivoav.exe"
            3⤵
            • Windows security bypass
            • Boot or Logon Autostart Execution: Active Setup
            • Event Triggered Execution: Image File Execution Options Injection
            • Executes dropped EXE
            • Windows security modification
            • Indicator Removal: Clear Persistence
            • Modifies WinLogon
            • Drops file in System32 directory
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:2752
            • C:\Windows\SysWOW64\ixbivoav.exe
              --k33p
              4⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              PID:4640

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            akmisof.dll

            • Path C:\Windows\SysWOW64\akmisof.dll
            • Size 5KB
            • SHA256 76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0
            • MD5 SHA1 SHA512 SSDEEP

            ixbivoav.exe

            • Path C:\Windows\SysWOW64\ixbivoav.exe
            • Size 80KB
            • SHA256 bc066aae21f879781dc09c6295181109ed4bc9acff4789850589f89f630a5524
            • MD5 SHA1 SHA512 SSDEEP

            ocseatoog.exe

            • Path C:\Windows\SysWOW64\ocseatoog.exe
            • Size 84KB
            • SHA256 59aa7d4ce7f5de0bfae311e258ccbf41de8f351438cb8b5fd096680bd7e6f2c5
            • MD5 SHA1 SHA512 SSDEEP

            oupbeder.exe

            • Path C:\Windows\SysWOW64\oupbeder.exe
            • Size 83KB
            • SHA256 4316d51bee7e93545d1ec2c9711102031bc604412e4a3f7dbb657645ff7ea2e0
            • MD5 SHA1 SHA512 SSDEEP

            memory/2752-46-0x0000000000400000-0x0000000000414000-memory.dmp

            memory/4640-47-0x0000000000400000-0x0000000000414000-memory.dmp

            memory/4980-5-0x0000000000400000-0x0000000000414000-memory.dmp