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Analysis

  • max time kernel
    151s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/12/2022, 23:23

General

  • Target

    5cf04b420a9662da4e823867bc143159edcd36c705efc820cb1bc363a77fae4c.exe

  • Size

    116KB

  • MD5

    87012d2ab799c59e6beabaab2393f6f0

  • SHA1

    9717e81f1ff99d522aa9867ec75857cabfefeb29

  • SHA256

    5cf04b420a9662da4e823867bc143159edcd36c705efc820cb1bc363a77fae4c

  • SHA512

    42fbd8f7c78b373be78fee774a2d43accfa71e36b9786c977044656701ee34250123a4e859a7afc51e8f76e7413c62a4cb9d0ace9d7f50c621cf8b15e469d47f

  • SSDEEP

    3072:GvUCOhKkulSDZMbMAxH8lyyVxe/6SYl7kvkNzC2Y:5oHDYAxayyT0bTt

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 29 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

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

  • Drops autorun.inf file 1 TTPs 1 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5cf04b420a9662da4e823867bc143159edcd36c705efc820cb1bc363a77fae4c.exe
    "C:\Users\Admin\AppData\Local\Temp\5cf04b420a9662da4e823867bc143159edcd36c705efc820cb1bc363a77fae4c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1944
    • C:\Users\Admin\AppData\Local\Temp\5cf04b420a9662da4e823867bc143159edcd36c705efc820cb1bc363a77fae4c.exe
      74
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Checks computer location settings
      • Adds Run key to start application
      • Maps connected drives based on registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5028
      • C:\Users\Admin\mieidux.exe
        "C:\Users\Admin\mieidux.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1432
        • C:\Users\Admin\mieidux.exe
          74
          4⤵
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • Maps connected drives based on registry
          • Drops autorun.inf file
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          PID:4412

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\mieidux.exe

    Filesize

    116KB

    MD5

    87012d2ab799c59e6beabaab2393f6f0

    SHA1

    9717e81f1ff99d522aa9867ec75857cabfefeb29

    SHA256

    5cf04b420a9662da4e823867bc143159edcd36c705efc820cb1bc363a77fae4c

    SHA512

    42fbd8f7c78b373be78fee774a2d43accfa71e36b9786c977044656701ee34250123a4e859a7afc51e8f76e7413c62a4cb9d0ace9d7f50c621cf8b15e469d47f

  • C:\Users\Admin\mieidux.exe

    Filesize

    116KB

    MD5

    87012d2ab799c59e6beabaab2393f6f0

    SHA1

    9717e81f1ff99d522aa9867ec75857cabfefeb29

    SHA256

    5cf04b420a9662da4e823867bc143159edcd36c705efc820cb1bc363a77fae4c

    SHA512

    42fbd8f7c78b373be78fee774a2d43accfa71e36b9786c977044656701ee34250123a4e859a7afc51e8f76e7413c62a4cb9d0ace9d7f50c621cf8b15e469d47f

  • C:\Users\Admin\mieidux.exe

    Filesize

    116KB

    MD5

    87012d2ab799c59e6beabaab2393f6f0

    SHA1

    9717e81f1ff99d522aa9867ec75857cabfefeb29

    SHA256

    5cf04b420a9662da4e823867bc143159edcd36c705efc820cb1bc363a77fae4c

    SHA512

    42fbd8f7c78b373be78fee774a2d43accfa71e36b9786c977044656701ee34250123a4e859a7afc51e8f76e7413c62a4cb9d0ace9d7f50c621cf8b15e469d47f

  • memory/4412-152-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4412-154-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/5028-135-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/5028-137-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/5028-153-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB