Analysis

  • max time kernel
    142s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    14-07-2022 07:35

General

  • Target

    4728b2a6eb6d440411e14091b50e815115c1967d317d1387580994276ac7df9e.exe

  • Size

    107KB

  • MD5

    24e0f93c0f69bcb4f1f31b6eeb675a8c

  • SHA1

    09fd08d23d1c3208c8938a93238a9a0ff2d9978c

  • SHA256

    4728b2a6eb6d440411e14091b50e815115c1967d317d1387580994276ac7df9e

  • SHA512

    7ec7daad5df6b5e87e731e1aff50b8414307ca5f145e37622fe77326deb584d51931e78e537c2ede00b9df0b18af0393eac7cd43f43e803ca1e6fc410fa247b6

Malware Config

Extracted

Family

netwire

C2

127.0.0.1:2011

Attributes
  • activex_autorun

    false

  • copy_executable

    true

  • delete_original

    false

  • host_id

    HostId-%Rand%

  • install_path

    %AppData%\Install\Host.exe

  • keylogger_dir

    %AppData%\Logs\

  • lock_executable

    false

  • mutex

    owWnuNuh

  • offline_keylogger

    true

  • password

    nhN5eDxxFW

  • registry_autorun

    true

  • startup_name

    NetWire

  • use_mutex

    true

Signatures

  • NetWire RAT payload 3 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
  • Loads dropped DLL 2 IoCs
  • 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\4728b2a6eb6d440411e14091b50e815115c1967d317d1387580994276ac7df9e.exe
    "C:\Users\Admin\AppData\Local\Temp\4728b2a6eb6d440411e14091b50e815115c1967d317d1387580994276ac7df9e.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1964
    • 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:1904

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    107KB

    MD5

    24e0f93c0f69bcb4f1f31b6eeb675a8c

    SHA1

    09fd08d23d1c3208c8938a93238a9a0ff2d9978c

    SHA256

    4728b2a6eb6d440411e14091b50e815115c1967d317d1387580994276ac7df9e

    SHA512

    7ec7daad5df6b5e87e731e1aff50b8414307ca5f145e37622fe77326deb584d51931e78e537c2ede00b9df0b18af0393eac7cd43f43e803ca1e6fc410fa247b6

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

    Filesize

    107KB

    MD5

    24e0f93c0f69bcb4f1f31b6eeb675a8c

    SHA1

    09fd08d23d1c3208c8938a93238a9a0ff2d9978c

    SHA256

    4728b2a6eb6d440411e14091b50e815115c1967d317d1387580994276ac7df9e

    SHA512

    7ec7daad5df6b5e87e731e1aff50b8414307ca5f145e37622fe77326deb584d51931e78e537c2ede00b9df0b18af0393eac7cd43f43e803ca1e6fc410fa247b6

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

    Filesize

    107KB

    MD5

    24e0f93c0f69bcb4f1f31b6eeb675a8c

    SHA1

    09fd08d23d1c3208c8938a93238a9a0ff2d9978c

    SHA256

    4728b2a6eb6d440411e14091b50e815115c1967d317d1387580994276ac7df9e

    SHA512

    7ec7daad5df6b5e87e731e1aff50b8414307ca5f145e37622fe77326deb584d51931e78e537c2ede00b9df0b18af0393eac7cd43f43e803ca1e6fc410fa247b6

  • memory/1904-57-0x0000000000000000-mapping.dmp

  • memory/1964-54-0x000007FEFC021000-0x000007FEFC023000-memory.dmp

    Filesize

    8KB