Analysis

  • max time kernel
    162s
  • max time network
    199s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-11-2022 07:51

General

  • Target

    f970c4c1736ba1245d59eaee85cf46f1b17850ed325899bc37c7e289e53b440d.exe

  • Size

    834KB

  • MD5

    e900078e22e49c49fa3feff2902cebfb

  • SHA1

    47b9dc323ab7c917df14a1877b4a7b4ac260d9b0

  • SHA256

    f970c4c1736ba1245d59eaee85cf46f1b17850ed325899bc37c7e289e53b440d

  • SHA512

    8dca4c52c3b60f41c660467fbe5189fc1de1c4e2dd6c72322a6b4ccda199261d5dcb3c2279944116e53ca33b5a9bdcdd49807cff660cabc8c831f199c36830dc

  • SSDEEP

    24576:w3LZE7QjJrNQwhnBS9sMrbpf3IS5zUXpCyE8:wby7QFrfqCM5P87

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Possible privilege escalation attempt 4 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Modifies file permissions 1 TTPs 4 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Maps connected drives based on registry 3 TTPs 3 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Drops file in System32 directory 4 IoCs
  • Modifies registry class 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f970c4c1736ba1245d59eaee85cf46f1b17850ed325899bc37c7e289e53b440d.exe
    "C:\Users\Admin\AppData\Local\Temp\f970c4c1736ba1245d59eaee85cf46f1b17850ed325899bc37c7e289e53b440d.exe"
    1⤵
    • Drops file in Drivers directory
    • Sets service image path in registry
    • Installs/modifies Browser Helper Object
    • Maps connected drives based on registry
    • Drops file in System32 directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: LoadsDriver
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4008
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c takeown /f C:\Windows\SysWOW64\wshtcpip.dll && icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4716
      • C:\Windows\SysWOW64\takeown.exe
        takeown /f C:\Windows\SysWOW64\wshtcpip.dll
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        • Suspicious use of AdjustPrivilegeToken
        PID:4432
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:2560
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c takeown /f C:\Windows\SysWOW64\midimap.dll && icacls C:\Windows\SysWOW64\midimap.dll /grant administrators:F
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2980
      • C:\Windows\SysWOW64\takeown.exe
        takeown /f C:\Windows\SysWOW64\midimap.dll
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        • Suspicious use of AdjustPrivilegeToken
        PID:752
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\midimap.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:3120
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\ahnmove.bat
      2⤵
        PID:4016

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\ahnmove.bat

      Filesize

      181B

      MD5

      c17945cb36fdd1682863c91cc6d6aa04

      SHA1

      d0ca8de2500ca63f2580f168f5d78879931da6e8

      SHA256

      bd7269cedf6d448d4a7042c07f599e42f3ddc7cf4f0b63793694cfa8cc2df23a

      SHA512

      59e10b0bbdc55da704cfb0fe9d7685184a2f6e8e0dc0291f98eaa55a9b3305dd6629776574fa2ce70c0a1026d717b7e18a2f04063801b42110ddcc8adbb4a4bf

    • memory/752-139-0x0000000000000000-mapping.dmp

    • memory/2560-137-0x0000000000000000-mapping.dmp

    • memory/2980-138-0x0000000000000000-mapping.dmp

    • memory/3120-140-0x0000000000000000-mapping.dmp

    • memory/4008-132-0x0000000001000000-0x0000000001C36000-memory.dmp

      Filesize

      12.2MB

    • memory/4008-133-0x0000000000BF0000-0x0000000000C10000-memory.dmp

      Filesize

      128KB

    • memory/4008-134-0x0000000000BF0000-0x0000000000C10000-memory.dmp

      Filesize

      128KB

    • memory/4008-143-0x0000000001000000-0x0000000001C36000-memory.dmp

      Filesize

      12.2MB

    • memory/4016-141-0x0000000000000000-mapping.dmp

    • memory/4432-136-0x0000000000000000-mapping.dmp

    • memory/4716-135-0x0000000000000000-mapping.dmp