Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/11/2022, 13:11

General

  • Target

    4e04cec2f2b9b6320b9978693b973cb2905fddb8fdf86f45fb11c360e30dae76.exe

  • Size

    204KB

  • MD5

    0cf17a776f951d6993c5adc9a0bcf186

  • SHA1

    6a11aa3f62c19fa61812b684533457ef62af4231

  • SHA256

    4e04cec2f2b9b6320b9978693b973cb2905fddb8fdf86f45fb11c360e30dae76

  • SHA512

    4b4677631a1b45a79038b8901adc69e07fc3c539c1aaf313e0df331608d3d5a41667c1ebb8b584a19f2ee10282ef5dabcb837bc82c2a2787b1a100681f4d52d6

  • SSDEEP

    3072:+PSBxK5PidCBrz5tdr/lOe1+zq979pMsTN7f60DPPsiNdkyZ8nbJFvCZ:PAlKCBvZlONCN7fJ7tNStn

Malware Config

Signatures

  • Drops file in Drivers directory 2 IoCs
  • Sets service image path in registry 2 TTPs 2 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 1 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 5 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 6 IoCs
  • Modifies registry class 46 IoCs
  • Suspicious behavior: EnumeratesProcesses 56 IoCs
  • Suspicious behavior: LoadsDriver 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4e04cec2f2b9b6320b9978693b973cb2905fddb8fdf86f45fb11c360e30dae76.exe
    "C:\Users\Admin\AppData\Local\Temp\4e04cec2f2b9b6320b9978693b973cb2905fddb8fdf86f45fb11c360e30dae76.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:1352
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\system32\regsvr32.exe /s /c C:\Windows\system32\kakubi.dll
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      PID:1016
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\Coor.bat
      2⤵
        PID:3616

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

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

            Filesize

            178B

            MD5

            19bb6a76db598f3dbaf60617be50f23d

            SHA1

            21ee9d9a02bd13f3fdf7d43db28ffd13ddc55155

            SHA256

            3e0a89bc419413909a43935f9a2601ca8f89e549104697006a39f3a7c61d7bfe

            SHA512

            0d58745922a6400a75a131de4b3f8ae5afe14107330a33cf52f11c2e4b2e85ab3837e3e72ca1bf69700128f2e6214e1c2d270241ed76c1f6623f438bd1cef3b6

          • C:\Windows\SysWOW64\kakubi.dll

            Filesize

            204KB

            MD5

            1ede6d2e918f31bcb6a5e21bc111cb5e

            SHA1

            0a9f42f50ebf8df9a9f9f69d6a99cee46ddaaf5e

            SHA256

            8750ceebd5d1027be6d7ecef9edb70195c88d924b316772414098a65eff4a61e

            SHA512

            c4b0b9e31491597ee2325c138cc57dddc845b3f256e01d2403d5af7d8794d9599df3bc5f2c8d6052201d5bea944d4a97c7fe7a55a3ce29f4daa779375e7ecda8

          • C:\Windows\SysWOW64\kakubi.dll

            Filesize

            204KB

            MD5

            1ede6d2e918f31bcb6a5e21bc111cb5e

            SHA1

            0a9f42f50ebf8df9a9f9f69d6a99cee46ddaaf5e

            SHA256

            8750ceebd5d1027be6d7ecef9edb70195c88d924b316772414098a65eff4a61e

            SHA512

            c4b0b9e31491597ee2325c138cc57dddc845b3f256e01d2403d5af7d8794d9599df3bc5f2c8d6052201d5bea944d4a97c7fe7a55a3ce29f4daa779375e7ecda8

          • memory/1352-132-0x0000000000400000-0x00000000004DC000-memory.dmp

            Filesize

            880KB

          • memory/1352-133-0x00000000021B0000-0x0000000002230000-memory.dmp

            Filesize

            512KB

          • memory/1352-134-0x00000000021B0000-0x0000000002230000-memory.dmp

            Filesize

            512KB

          • memory/1352-135-0x0000000000670000-0x0000000000680000-memory.dmp

            Filesize

            64KB

          • memory/1352-139-0x0000000000400000-0x00000000004DC000-memory.dmp

            Filesize

            880KB

          • memory/1352-140-0x0000000000670000-0x0000000000680000-memory.dmp

            Filesize

            64KB

          • memory/1352-142-0x0000000000400000-0x00000000004DC000-memory.dmp

            Filesize

            880KB