Analysis

  • max time kernel
    83s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-10-2022 22:48

General

  • Target

    48987402a460201fb657dec8929afe378b98c86cfc95377b82269f95be2d78c0.exe

  • Size

    653KB

  • MD5

    62d25732203130462a86de8e7f85c180

  • SHA1

    1cd039aaff2e3e3655ecec1dd386775878cc1a5e

  • SHA256

    48987402a460201fb657dec8929afe378b98c86cfc95377b82269f95be2d78c0

  • SHA512

    3dcc681e7f1adf9efcec61bda9dbfb0263efa32f4445f89bc7c4c61200721a409c79b0ef12015454fb41fd51d995736314c30e309ea17a0bb300f18e8ccff88f

  • SSDEEP

    12288:ZMW5QPmJGc3EDzPvEBprO/rlmyjt9XrCcmHaxo+Q7CPV1DjcOOuFQi0O:ZMW5/GIEvPIrO/rlPDmcRGkD7Ouh0O

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Possible privilege escalation attempt 4 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 5 IoCs
  • Modifies registry class 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\48987402a460201fb657dec8929afe378b98c86cfc95377b82269f95be2d78c0.exe
    "C:\Users\Admin\AppData\Local\Temp\48987402a460201fb657dec8929afe378b98c86cfc95377b82269f95be2d78c0.exe"
    1⤵
    • Drops file in Drivers directory
    • Installs/modifies Browser Helper Object
    • Maps connected drives based on registry
    • Drops file in System32 directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3064
    • 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:4644
      • 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:2860
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:4296
    • 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:884
      • 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:2296
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\midimap.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:4612
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\ahnmove.bat
      2⤵
        PID:1604

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Browser Extensions

    1
    T1176

    Defense Evasion

    File Permissions Modification

    1
    T1222

    Modify Registry

    1
    T1112

    Discovery

    Query Registry

    1
    T1012

    Peripheral Device Discovery

    1
    T1120

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      181B

      MD5

      041f6e97167ce9068a5fca01ec52763e

      SHA1

      9d485272198387d4d7476ff5a32c2b00ad0a3426

      SHA256

      31896dd082286dce1b09e8987f2928ea6d3afc4cc9a9ebefc98e7b8e8336abe9

      SHA512

      f01983f9a72772680698a78c8785223dbbada9ed74315f00c58c5510d9b85ccb6f9f01d45a1125e251a5dc048c725b50c105bc2da0dc30b9d49f19f33e2f3544

    • memory/884-137-0x0000000000000000-mapping.dmp
    • memory/1604-141-0x0000000000000000-mapping.dmp
    • memory/2296-138-0x0000000000000000-mapping.dmp
    • memory/2860-135-0x0000000000000000-mapping.dmp
    • memory/3064-132-0x0000000001000000-0x0000000001B4D000-memory.dmp
      Filesize

      11.3MB

    • memory/3064-133-0x0000000000550000-0x0000000000570000-memory.dmp
      Filesize

      128KB

    • memory/3064-140-0x0000000001000000-0x0000000001B4D000-memory.dmp
      Filesize

      11.3MB

    • memory/3064-143-0x0000000001000000-0x0000000001B4D000-memory.dmp
      Filesize

      11.3MB

    • memory/4296-136-0x0000000000000000-mapping.dmp
    • memory/4612-139-0x0000000000000000-mapping.dmp
    • memory/4644-134-0x0000000000000000-mapping.dmp