Analysis

  • max time kernel
    147s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 10:53

General

  • Target

    26cbcdf87d4edcd15ed03693fa12801daa8471bc9707d9b0afbb84a41ab5e42e.exe

  • Size

    329KB

  • MD5

    304e87b1a549495812c9e34ffd033540

  • SHA1

    52b5f12b6a5167b29dbf15c0c7704a7c2871b134

  • SHA256

    26cbcdf87d4edcd15ed03693fa12801daa8471bc9707d9b0afbb84a41ab5e42e

  • SHA512

    02e5ecdc0a7846088fdedeb3da5013d7de41dc71957f2f82586a6e75abd00e6418f9d06cf439cb426e7151852ec414929e0c164acae24fd69c6c901bebd63358

  • SSDEEP

    6144:7qpxvlACym6wGGWFGDwZyoJ3fzBeM6SpktqHQI6mVk8cL3/CzYjsHh:7qjvlA06wLBHAf9eMvHwmVkhL36zYwHh

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
  • Deletes itself 1 IoCs
  • Modifies file permissions 1 TTPs 4 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 4 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 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\26cbcdf87d4edcd15ed03693fa12801daa8471bc9707d9b0afbb84a41ab5e42e.exe
    "C:\Users\Admin\AppData\Local\Temp\26cbcdf87d4edcd15ed03693fa12801daa8471bc9707d9b0afbb84a41ab5e42e.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:1408
    • 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:1776
      • 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:1124
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:1200
    • 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:2012
      • 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:1616
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\midimap.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:1016
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Users\Admin\AppData\Local\Temp\ahnmove.bat
      2⤵
      • Deletes itself
      PID:1744

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    181B

    MD5

    2d9deda121003f31d302bac4d4edea7e

    SHA1

    203ff45ac231344f801c6f0cf5e4e14e6739356a

    SHA256

    dae7482ccfff60c34ec668e650a0a8de8cf88cfc04b2eb7af3f4bf5b3bfe1400

    SHA512

    45989a06d683a80852a518ad41693180c257248dbd4ebbf000343a5022a9ac160ae05401209e52f4a787cf9b5de1469f08672a108660a0a804db500dbf853fb9

  • memory/1016-64-0x0000000000000000-mapping.dmp

  • memory/1124-60-0x0000000000000000-mapping.dmp

  • memory/1200-61-0x0000000000000000-mapping.dmp

  • memory/1408-57-0x0000000001000000-0x0000000001168000-memory.dmp

    Filesize

    1.4MB

  • memory/1408-58-0x0000000000220000-0x0000000000240000-memory.dmp

    Filesize

    128KB

  • memory/1408-54-0x0000000075F21000-0x0000000075F23000-memory.dmp

    Filesize

    8KB

  • memory/1408-56-0x0000000000220000-0x0000000000240000-memory.dmp

    Filesize

    128KB

  • memory/1408-55-0x0000000001000000-0x0000000001168000-memory.dmp

    Filesize

    1.4MB

  • memory/1408-66-0x0000000001000000-0x0000000001168000-memory.dmp

    Filesize

    1.4MB

  • memory/1616-63-0x0000000000000000-mapping.dmp

  • memory/1744-65-0x0000000000000000-mapping.dmp

  • memory/1776-59-0x0000000000000000-mapping.dmp

  • memory/2012-62-0x0000000000000000-mapping.dmp