Analysis

  • max time kernel
    106s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-11-2022 20:44

General

  • Target

    fc1ab9a3235ff911611dc981a2d2287da56b2c88793968e8e18fc58fbe99a94d.exe

  • Size

    329KB

  • MD5

    0ba3d397fbc1925b85f6cea8686dab40

  • SHA1

    0fd696ee44e5f78b8a52a309cb496934f1e8b6b8

  • SHA256

    fc1ab9a3235ff911611dc981a2d2287da56b2c88793968e8e18fc58fbe99a94d

  • SHA512

    c552b14caaa149a961acf667c871efd8b9ed003fefa332d5ded665614762a17e577a1ea13d291ae2ec5135343290afba0d01e6cc91138d2c6b3032c1aee74c3b

  • SSDEEP

    6144:MqpxvlACym6wGGWFGDwZyoJ3fzBeM6SpktqHQI6mVk8cL3/CzYjsHh:MqjvlA06wLBHAf9eMvHwmVkhL36zYwHh

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\fc1ab9a3235ff911611dc981a2d2287da56b2c88793968e8e18fc58fbe99a94d.exe
    "C:\Users\Admin\AppData\Local\Temp\fc1ab9a3235ff911611dc981a2d2287da56b2c88793968e8e18fc58fbe99a94d.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:1780
    • 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:3200
      • 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:4948
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:4856
    • 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:4216
      • 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:4692
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\midimap.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:4476
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\ahnmove.bat
      2⤵
        PID:5028

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      181B

      MD5

      a960098b3c11dc3900189fe4d27abe62

      SHA1

      e1985c922ba7c2d57d74fd827a2ac09fef8b0ed9

      SHA256

      299efab2745e2fa0df2d81ebf3692c3f7f256121a639fb3fba52b1060caeb6d7

      SHA512

      007699433e5a83ab7b9dd6e434397271df420f57e89d46414215818c844c4d740701a6217bcbdab93720dff32b8a7667a56d2ad9ad82ef9954937e10d82c0da3

    • memory/1780-132-0x0000000001000000-0x0000000001168000-memory.dmp

      Filesize

      1.4MB

    • memory/1780-133-0x0000000000BE0000-0x0000000000C00000-memory.dmp

      Filesize

      128KB

    • memory/1780-134-0x0000000001000000-0x0000000001168000-memory.dmp

      Filesize

      1.4MB

    • memory/1780-135-0x0000000000BE0000-0x0000000000C00000-memory.dmp

      Filesize

      128KB

    • memory/1780-143-0x0000000001000000-0x0000000001168000-memory.dmp

      Filesize

      1.4MB

    • memory/3200-136-0x0000000000000000-mapping.dmp

    • memory/4216-139-0x0000000000000000-mapping.dmp

    • memory/4476-141-0x0000000000000000-mapping.dmp

    • memory/4692-140-0x0000000000000000-mapping.dmp

    • memory/4856-138-0x0000000000000000-mapping.dmp

    • memory/4948-137-0x0000000000000000-mapping.dmp

    • memory/5028-142-0x0000000000000000-mapping.dmp