Analysis

  • max time kernel
    143s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    16/02/2022, 03:13

General

  • Target
    IN873878733.exe
  • Size 847KB
  • Sample220216-dqrfaabca9
  • SHA256 c4f327e6c0f7b0a3de5660b78fd33c0e4bcaff1e21d5a55bc312b2774b050e2c
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • netwire

C2
  • podzeye.duckdns.org:6688

Attributes
  • activex_autorun

    false

  • activex_key

  • copy_executable

    false

  • delete_original

    false

  • host_id

    HostId-%Rand%

  • install_path

  • keylogger_dir

  • lock_executable

    false

  • mutex

  • offline_keylogger

    false

  • password

    Password

  • registry_autorun

    false

  • startup_name

  • use_mutex

    false

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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies data under HKEY_USERS 55 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\IN873878733.exe
    "C:\Users\Admin\AppData\Local\Temp\IN873878733.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3724
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\xFcKcyXYwTA.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:816
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xFcKcyXYwTA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDF5C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2984
    • C:\Users\Admin\AppData\Local\Temp\IN873878733.exe
      "C:\Users\Admin\AppData\Local\Temp\IN873878733.exe"
      2⤵
        PID:3636
    • C:\Windows\system32\MusNotifyIcon.exe
      %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
      1⤵
      • Checks processor information in registry
      PID:2984
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k NetworkService -p
      1⤵
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      PID:3580
    • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
      C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
      1⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:3824

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/816-147-0x0000000007D90000-0x0000000007DF6000-memory.dmp

          memory/816-153-0x0000000008A40000-0x0000000008A5E000-memory.dmp

          memory/816-162-0x0000000009AC0000-0x0000000009AC8000-memory.dmp

          memory/816-161-0x0000000009AE0000-0x0000000009AFA000-memory.dmp

          memory/816-160-0x00000000099D0000-0x00000000099DE000-memory.dmp

          memory/816-159-0x0000000009A20000-0x0000000009AB6000-memory.dmp

          memory/816-139-0x0000000004B60000-0x0000000004B96000-memory.dmp

          memory/816-158-0x0000000009820000-0x000000000982A000-memory.dmp

          memory/816-141-0x00000000076F0000-0x0000000007D18000-memory.dmp

          memory/816-157-0x00000000097A0000-0x00000000097BA000-memory.dmp

          memory/816-143-0x00000000074E0000-0x0000000007502000-memory.dmp

          memory/816-144-0x000000007479E000-0x000000007479F000-memory.dmp

          memory/816-145-0x0000000004C60000-0x0000000004C61000-memory.dmp

          memory/816-156-0x0000000009DF0000-0x000000000A46A000-memory.dmp

          memory/816-146-0x0000000004C62000-0x0000000004C63000-memory.dmp

          memory/816-154-0x0000000004C65000-0x0000000004C67000-memory.dmp

          memory/816-155-0x000000007F500000-0x000000007F501000-memory.dmp

          memory/816-150-0x00000000084A0000-0x00000000084BE000-memory.dmp

          memory/816-151-0x0000000008A60000-0x0000000008A92000-memory.dmp

          memory/816-152-0x0000000070870000-0x00000000708BC000-memory.dmp

          memory/816-149-0x0000000007E70000-0x0000000007ED6000-memory.dmp

          memory/3636-148-0x0000000000400000-0x0000000000433000-memory.dmp

          memory/3636-142-0x0000000000400000-0x0000000000433000-memory.dmp

          memory/3724-132-0x0000000005240000-0x00000000057E4000-memory.dmp

          memory/3724-130-0x000000007479E000-0x000000007479F000-memory.dmp

          memory/3724-131-0x00000000000F0000-0x00000000001CC000-memory.dmp

          memory/3724-136-0x0000000006FB0000-0x000000000704C000-memory.dmp

          memory/3724-135-0x0000000004DF0000-0x0000000004DF1000-memory.dmp

          memory/3724-134-0x0000000004B60000-0x0000000004B6A000-memory.dmp

          memory/3724-133-0x0000000004B80000-0x0000000004C12000-memory.dmp