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Analysis

  • max time kernel
    152s
  • max time network
    154s
  • 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, 01:18

General

  • Target

    8a47f22324c992de1a575a3380157a69784d20e438e98401d8d6728f4f2f06ae.exe

  • Size

    323KB

  • MD5

    060bbbcd3963eb24d07ca1de2f85c670

  • SHA1

    c69df2e3b28fc02926c26e25ccef95c8543886db

  • SHA256

    8a47f22324c992de1a575a3380157a69784d20e438e98401d8d6728f4f2f06ae

  • SHA512

    a3419b46e63aabf730ee61a172e315608f6841caadf4a014c8a162676028cc424720033ddede6d040e5327d86d3d8c8ff5aa721297b54d404a38c1792b2dec8e

  • SSDEEP

    6144:MDRgvR2pZRhXQLOzSE8x2OZZGDvMOjWkfJBpybuqq0K5Mxn:MDRTXjXQ6zSE8xnavjKkfJ7yFq0K5yn

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Sets file execution options in registry 2 TTPs 64 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops file in System32 directory 3 IoCs
  • 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 behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8a47f22324c992de1a575a3380157a69784d20e438e98401d8d6728f4f2f06ae.exe
    "C:\Users\Admin\AppData\Local\Temp\8a47f22324c992de1a575a3380157a69784d20e438e98401d8d6728f4f2f06ae.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4960
    • C:\Users\Admin\AppData\Local\Temp\8a47f22324c992de1a575a3380157a69784d20e438e98401d8d6728f4f2f06ae.exe
      "C:\Users\Admin\AppData\Local\Temp\8a47f22324c992de1a575a3380157a69784d20e438e98401d8d6728f4f2f06ae.exe"
      2⤵
      • Checks computer location settings
      • Drops file in System32 directory
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:4736
      • C:\Windows\SysWOW64\Windows Server\wserver.exe
        "C:\Windows\system32\Windows Server\wserver.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4152
        • C:\Windows\SysWOW64\Windows Server\wserver.exe
          "C:\Windows\SysWOW64\Windows Server\wserver.exe"
          4⤵
          • Modifies WinLogon for persistence
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Sets file execution options in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2024

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\Windows Server\wserver.exe

    Filesize

    323KB

    MD5

    060bbbcd3963eb24d07ca1de2f85c670

    SHA1

    c69df2e3b28fc02926c26e25ccef95c8543886db

    SHA256

    8a47f22324c992de1a575a3380157a69784d20e438e98401d8d6728f4f2f06ae

    SHA512

    a3419b46e63aabf730ee61a172e315608f6841caadf4a014c8a162676028cc424720033ddede6d040e5327d86d3d8c8ff5aa721297b54d404a38c1792b2dec8e

  • C:\Windows\SysWOW64\Windows Server\wserver.exe

    Filesize

    323KB

    MD5

    060bbbcd3963eb24d07ca1de2f85c670

    SHA1

    c69df2e3b28fc02926c26e25ccef95c8543886db

    SHA256

    8a47f22324c992de1a575a3380157a69784d20e438e98401d8d6728f4f2f06ae

    SHA512

    a3419b46e63aabf730ee61a172e315608f6841caadf4a014c8a162676028cc424720033ddede6d040e5327d86d3d8c8ff5aa721297b54d404a38c1792b2dec8e

  • C:\Windows\SysWOW64\Windows Server\wserver.exe

    Filesize

    323KB

    MD5

    060bbbcd3963eb24d07ca1de2f85c670

    SHA1

    c69df2e3b28fc02926c26e25ccef95c8543886db

    SHA256

    8a47f22324c992de1a575a3380157a69784d20e438e98401d8d6728f4f2f06ae

    SHA512

    a3419b46e63aabf730ee61a172e315608f6841caadf4a014c8a162676028cc424720033ddede6d040e5327d86d3d8c8ff5aa721297b54d404a38c1792b2dec8e

  • memory/2024-144-0x00000000746C0000-0x0000000074C71000-memory.dmp

    Filesize

    5.7MB

  • memory/2024-146-0x00000000746C0000-0x0000000074C71000-memory.dmp

    Filesize

    5.7MB

  • memory/4152-139-0x00000000746C0000-0x0000000074C71000-memory.dmp

    Filesize

    5.7MB

  • memory/4152-143-0x00000000746C0000-0x0000000074C71000-memory.dmp

    Filesize

    5.7MB

  • memory/4736-135-0x00000000746C0000-0x0000000074C71000-memory.dmp

    Filesize

    5.7MB

  • memory/4736-133-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/4736-145-0x00000000746C0000-0x0000000074C71000-memory.dmp

    Filesize

    5.7MB

  • memory/4736-147-0x00000000746C0000-0x0000000074C71000-memory.dmp

    Filesize

    5.7MB

  • memory/4960-134-0x00000000746C0000-0x0000000074C71000-memory.dmp

    Filesize

    5.7MB