Analysis

  • max time kernel
    151s
  • max time network
    174s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220722-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220722-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-07-2022 07:07

General

  • Target

    a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8.exe

  • Size

    106KB

  • MD5

    d211ed9506d0b95e7f51a69311acb0ed

  • SHA1

    df1b5a3e71e5de7f00433aa69bc1a88e7d8ac745

  • SHA256

    a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8

  • SHA512

    179ae1610a4491a3d570425e55a96ea0ad688ced4ce07d5f273940b38568ff892bb09e36c9492fd0b499b76f73d400c4170bcd2e565064b9c29e3425e3fe8644

Malware Config

Signatures

  • NetWire RAT payload 2 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 1 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 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8.exe
    "C:\Users\Admin\AppData\Local\Temp\a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:404
    • C:\Users\Admin\AppData\Roaming\Install\Host.exe
      "C:\Users\Admin\AppData\Roaming\Install\Host.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      PID:1592

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    106KB

    MD5

    d211ed9506d0b95e7f51a69311acb0ed

    SHA1

    df1b5a3e71e5de7f00433aa69bc1a88e7d8ac745

    SHA256

    a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8

    SHA512

    179ae1610a4491a3d570425e55a96ea0ad688ced4ce07d5f273940b38568ff892bb09e36c9492fd0b499b76f73d400c4170bcd2e565064b9c29e3425e3fe8644

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

    Filesize

    106KB

    MD5

    d211ed9506d0b95e7f51a69311acb0ed

    SHA1

    df1b5a3e71e5de7f00433aa69bc1a88e7d8ac745

    SHA256

    a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8

    SHA512

    179ae1610a4491a3d570425e55a96ea0ad688ced4ce07d5f273940b38568ff892bb09e36c9492fd0b499b76f73d400c4170bcd2e565064b9c29e3425e3fe8644

  • memory/1592-132-0x0000000000000000-mapping.dmp