Analysis

  • max time kernel
    107s
  • max time network
    109s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    25-06-2022 07:15

General

  • Target

    39f51c80d8d21e1ae2a007f80d67e24dbf3742a458dd53c7fc5e0ebf1ae92822.exe

  • Size

    604KB

  • MD5

    709f957e6dbe9b0c1457e92aa4cc48d6

  • SHA1

    204d345363fd5d0d78d436d3d67cab1c335273ce

  • SHA256

    39f51c80d8d21e1ae2a007f80d67e24dbf3742a458dd53c7fc5e0ebf1ae92822

  • SHA512

    be56e882e28835c8e6c043d39d59510f3b3a6ce03517095c9d24c8fbca02a6d91c98bf4bd83579b3078fde4147201b010611959d5bb5cc2adfda24a5c2a3ba4f

Malware Config

Extracted

Family

netwire

C2

emthai.ddns.net:3365

emthai.ddns.net:1076

Attributes
  • activex_autorun

    false

  • copy_executable

    true

  • delete_original

    true

  • host_id

    HostId-%Emathai%

  • install_path

    %AppData%\Install\Host.exe

  • keylogger_dir

    %AppData%\Logs\

  • lock_executable

    false

  • mutex

    nOQDdboC

  • offline_keylogger

    true

  • password

    emthai18

  • registry_autorun

    true

  • startup_name

    Java_Updates

  • use_mutex

    true

Signatures

  • NetWire RAT payload 8 IoCs
  • Netwire

    Netwire is a RAT with main functionalities focused password stealing and keylogging, but also includes remote control capabilities as well.

  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\39f51c80d8d21e1ae2a007f80d67e24dbf3742a458dd53c7fc5e0ebf1ae92822.exe
    "C:\Users\Admin\AppData\Local\Temp\39f51c80d8d21e1ae2a007f80d67e24dbf3742a458dd53c7fc5e0ebf1ae92822.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1808
    • C:\Users\Admin\AppData\Local\Temp\39f51c80d8d21e1ae2a007f80d67e24dbf3742a458dd53c7fc5e0ebf1ae92822.exe
      "C:\Users\Admin\AppData\Local\Temp\39f51c80d8d21e1ae2a007f80d67e24dbf3742a458dd53c7fc5e0ebf1ae92822.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1332
      • C:\Users\Admin\AppData\Roaming\Install\Host.exe
        -m "C:\Users\Admin\AppData\Local\Temp\39f51c80d8d21e1ae2a007f80d67e24dbf3742a458dd53c7fc5e0ebf1ae92822.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1196
        • C:\Users\Admin\AppData\Roaming\Install\Host.exe
          -m "C:\Users\Admin\AppData\Local\Temp\39f51c80d8d21e1ae2a007f80d67e24dbf3742a458dd53c7fc5e0ebf1ae92822.exe"
          4⤵
          • Executes dropped EXE
          • Deletes itself
          • Adds Run key to start application
          PID:2020

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\Install\Host.exe
    Filesize

    604KB

    MD5

    709f957e6dbe9b0c1457e92aa4cc48d6

    SHA1

    204d345363fd5d0d78d436d3d67cab1c335273ce

    SHA256

    39f51c80d8d21e1ae2a007f80d67e24dbf3742a458dd53c7fc5e0ebf1ae92822

    SHA512

    be56e882e28835c8e6c043d39d59510f3b3a6ce03517095c9d24c8fbca02a6d91c98bf4bd83579b3078fde4147201b010611959d5bb5cc2adfda24a5c2a3ba4f

  • C:\Users\Admin\AppData\Roaming\Install\Host.exe
    Filesize

    604KB

    MD5

    709f957e6dbe9b0c1457e92aa4cc48d6

    SHA1

    204d345363fd5d0d78d436d3d67cab1c335273ce

    SHA256

    39f51c80d8d21e1ae2a007f80d67e24dbf3742a458dd53c7fc5e0ebf1ae92822

    SHA512

    be56e882e28835c8e6c043d39d59510f3b3a6ce03517095c9d24c8fbca02a6d91c98bf4bd83579b3078fde4147201b010611959d5bb5cc2adfda24a5c2a3ba4f

  • C:\Users\Admin\AppData\Roaming\Install\Host.exe
    Filesize

    604KB

    MD5

    709f957e6dbe9b0c1457e92aa4cc48d6

    SHA1

    204d345363fd5d0d78d436d3d67cab1c335273ce

    SHA256

    39f51c80d8d21e1ae2a007f80d67e24dbf3742a458dd53c7fc5e0ebf1ae92822

    SHA512

    be56e882e28835c8e6c043d39d59510f3b3a6ce03517095c9d24c8fbca02a6d91c98bf4bd83579b3078fde4147201b010611959d5bb5cc2adfda24a5c2a3ba4f

  • \Users\Admin\AppData\Roaming\Install\Host.exe
    Filesize

    604KB

    MD5

    709f957e6dbe9b0c1457e92aa4cc48d6

    SHA1

    204d345363fd5d0d78d436d3d67cab1c335273ce

    SHA256

    39f51c80d8d21e1ae2a007f80d67e24dbf3742a458dd53c7fc5e0ebf1ae92822

    SHA512

    be56e882e28835c8e6c043d39d59510f3b3a6ce03517095c9d24c8fbca02a6d91c98bf4bd83579b3078fde4147201b010611959d5bb5cc2adfda24a5c2a3ba4f

  • \Users\Admin\AppData\Roaming\Install\Host.exe
    Filesize

    604KB

    MD5

    709f957e6dbe9b0c1457e92aa4cc48d6

    SHA1

    204d345363fd5d0d78d436d3d67cab1c335273ce

    SHA256

    39f51c80d8d21e1ae2a007f80d67e24dbf3742a458dd53c7fc5e0ebf1ae92822

    SHA512

    be56e882e28835c8e6c043d39d59510f3b3a6ce03517095c9d24c8fbca02a6d91c98bf4bd83579b3078fde4147201b010611959d5bb5cc2adfda24a5c2a3ba4f

  • memory/1196-65-0x0000000000000000-mapping.dmp
  • memory/1332-58-0x0000000000000000-mapping.dmp
  • memory/1332-62-0x0000000000400000-0x000000000042C000-memory.dmp
    Filesize

    176KB

  • memory/1332-59-0x0000000000400000-0x000000000042C000-memory.dmp
    Filesize

    176KB

  • memory/1332-68-0x0000000000400000-0x000000000042C000-memory.dmp
    Filesize

    176KB

  • memory/1808-56-0x0000000000280000-0x0000000000286000-memory.dmp
    Filesize

    24KB

  • memory/1808-60-0x0000000000280000-0x0000000000286000-memory.dmp
    Filesize

    24KB

  • memory/1808-57-0x0000000075BD1000-0x0000000075BD3000-memory.dmp
    Filesize

    8KB

  • memory/2020-72-0x0000000000000000-mapping.dmp
  • memory/2020-76-0x0000000000400000-0x000000000042C000-memory.dmp
    Filesize

    176KB

  • memory/2020-77-0x0000000000400000-0x000000000042C000-memory.dmp
    Filesize

    176KB

  • memory/2020-78-0x0000000000400000-0x000000000042C000-memory.dmp
    Filesize

    176KB