Overview

overview

10

Static

static

10

TcpClient.exe

windows7-x64

10

TcpClient.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    110s
  • max time network
    112s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-08-2024 06:52

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General

  • Target

    TcpClient.exe

  • Size

    160KB

  • MD5

    2df0cc45516057896f2aa7cbb090ba48

  • SHA1

    89d0dd4af7d86333db104470ce22bd25b0c1f8d1

  • SHA256

    3eb685dfb2506c3ec019ea69b788b771676d6a8d1eedf9ba08db8175966784fc

  • SHA512

    458b6e2a724bd191383ff37078bb9b8df181da7c2801decafd5c7cdf7c52df6cc93b665f275b24e9bb7fdaa56cb0cd93df9c7227ee3d2865e84072a650abd43e

  • SSDEEP

    3072:jOzPcXa+ND32eioGHlz8rnAE0HCXh0edLv2NYMjMqqDvFf:jOTcK+NrRioGHlz8rz0i/2NzQqqDvFf

Score
10/10
netwirebotnetdiscoverypersistenceratstealer

Malware Config

Extracted

Family

netwire

C2

hazbot.duckdns.org:3360

Attributes
  • activex_autorun

    false

  • copy_executable

    true

  • delete_original

    true

  • host_id

    HostId-%Rand%

  • install_path

    %AppData%\Install\Host.exe

  • keylogger_dir

    %AppData%\Logs\

  • lock_executable

    true

  • mutex

    fYGiNfhu

  • offline_keylogger

    true

  • password

    Hazza2021!

  • registry_autorun

    true

  • startup_name

    NetWire

  • use_mutex

    true

Signatures

  • NetWire RAT payload 3 IoCs
    rat
  • Netwire

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

    botnetstealernetwire
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\TcpClient.exe
    "C:\Users\Admin\AppData\Local\Temp\TcpClient.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2256
    • C:\Users\Admin\AppData\Roaming\Install\Host.exe
      "C:\Users\Admin\AppData\Roaming\Install\Host.exe" -m "C:\Users\Admin\AppData\Local\Temp\TcpClient.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      PID:4540

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    160KB

    MD5

    2df0cc45516057896f2aa7cbb090ba48

    SHA1

    89d0dd4af7d86333db104470ce22bd25b0c1f8d1

    SHA256

    3eb685dfb2506c3ec019ea69b788b771676d6a8d1eedf9ba08db8175966784fc

    SHA512

    458b6e2a724bd191383ff37078bb9b8df181da7c2801decafd5c7cdf7c52df6cc93b665f275b24e9bb7fdaa56cb0cd93df9c7227ee3d2865e84072a650abd43e

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  • memory/2256-8-0x0000000000400000-0x0000000000433000-memory.dmp

    Filesize

    204KB

    Download

  • memory/4540-9-0x0000000000400000-0x0000000000433000-memory.dmp

    Filesize

    204KB

    Download